https://www.gainexpress.com/ daily https://www.gainexpress.com/products/510-160 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-510-160-510-160-digital-body-fat-caliper-analyzer-measure-mm-inch-lcd-for-men-women-healthy-pocket-weight-monitor-507176.jpg?v=1732853750 510-160 Digital Body Fat Caliper Analyzer Measure mm inch LCD for Men / Women Healthy Pocket Weight Monitor 510 - 160 510 - 160 Digital Body Fat Caliper Analyzer Measure mm inch LCD for Men / Women Healthy Pocket Weight Monitor - Gain Express https://www.gainexpress.com/products/560-10a 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-560-10a-560-10a-shore-a-digital-hardness-meter-durometer-0100ha-rubber-tire-with-lcd-display-pocket-size-tester-111106.jpg?v=1732853635 560-10A Shore A Digital Hardness Meter Durometer 0~100HA, Rubber Tire with LCD Display Pocket Size Tester 560 - 10A 560 - 10A Shore A Digital Hardness Meter Durometer 0~100HA, Rubber Tire with LCD Display Pocket Size Tester - Gain Express https://www.gainexpress.com/products/560-10d 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-560-10d-560-10d-shore-d-digital-hardness-meter-durometer-0100hd-pocket-size-tester-with-lcd-display-533122.jpg?v=1732853670 560-10D Shore D Digital Hardness Meter Durometer 0~100HD Pocket Size Tester with LCD Display 560 - 10D 560 - 10D Shore D Digital Hardness Meter Durometer 0~100HD Pocket Size Tester with LCD Display - Gain Express https://www.gainexpress.com/products/6520 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-6520-6520-digital-infrared-ir-laser-thermometer-505000c-589320f-81-748339.jpg?v=1732853669 6520 Digital Infrared IR Laser Thermometer -50~500°C -58~932°F 8:1 + 6520 6520 Digital Infrared IR Laser Thermometer - 50~500°C - 58~932°F 8:1 + - Gain Express https://www.gainexpress.com/products/710-110 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/710-110-bat-377-battery-tester-checker-c-aa-aaa-d-n-9v-1-5v-button-cell-batteries-clear-bar-graph-lcd-display-pocket-size-807.jpg?v=1754994590 710-110 / BAT-377 Battery Tester Checker C AA AAA D N 9V 1.5V Button Cell Batteries Clear Bar Graph LCD Display Pocket Size 710 - 110 / BAT - 377 Battery Tester Checker C AA AAA D N 9V 1.5V Button Cell Batteries Clear Bar Graph LCD Display Pocket Size - Gain Express https://www.gainexpress.com/products/va-8010 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-va-8010-va-8010-digital-air-temperature-humidity-meter-thermometer-0c-0f-tester-w-dew-point-ce-marking-lcd-display-760887.jpg?v=1735489842 VA-8010 Digital Air Temperature Humidity Meter Thermometer °C / °F Tester w/ Dew Point CE Marking LCD Display VA - 8010 Digital Air Temperature Humidity Meter Thermometer °C / °F Tester w/ Dew Point CE Marking LCD Display - Gain Express https://www.gainexpress.com/products/va-8020 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-va-8020-va-8020-anemometer-thermometer-air-speed-temperature-0c-0f-hvac-dual-meter-tester-804000fpm-0420ms-10500c-141220f-459350.jpg?v=1735489896 VA-8020 Anemometer Thermometer, Air Speed Temperature °C / °F HVAC Dual Meter Tester, 80~4000fpm (0.4~20m/s), -10~50°C (14~122°F) VA - 8020 Anemometer Thermometer, Air Speed Temperature °C / °F HVAC Dual Meter Tester, 80~4000fpm (0.4~20m/s), - 10~50°C (14~122°F) - Gain Express https://www.gainexpress.com/products/va-8040 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-va-8040-va-8040-moisture-temperature-meter-0c-0f-wood-bricks-concrete-cement-lime-mortar-ce-marking-dual-meter-tester-162451.jpg?v=1735489889 VA-8040 Moisture & Temperature Meter °C °F Wood Bricks Concrete Cement Lime Mortar CE Marking Dual Meter Tester VA - 8040 Moisture & Temperature Meter °C °F Wood Bricks Concrete Cement Lime Mortar CE Marking Dual Meter Tester - Gain Express https://www.gainexpress.com/products/va-8041 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-va-8041-va8041-ultrasonic-thickness-meter-tester-gauge-measure-12220-mm-velocity-digital-lcd-for-metal-steel-aluminum-copper-glass-iron-plastics-ti-265478.jpg?v=1735489887 VA8041 Ultrasonic Thickness Meter Tester Gauge Measure 1.2~220 mm Velocity Digital LCD for metal steel aluminum copper glass iron plastics tile brass gold silver zinc VA8041 Ultrasonic Thickness Meter Tester Gauge Measure 1.2~220 mm Velocity Digital LCD for metal steel aluminum copper glass iron plastics tile brass gold silver zinc - Gain Express https://www.gainexpress.com/products/8050 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-va-8050-va-8050-digital-light-lux-meter-range-030000-lux-ftc-max-min-hold-handheld-device-ce-marking-624190.jpg?v=1735489822 VA-8050 Digital Light Lux Meter Range 0~30,000 Lux / FTC + Max Min Hold Handheld Device CE marking VA - 8050 Digital Light Lux Meter Range 0~30,000 Lux / FTC + Max Min Hold Handheld Device CE marking - Gain Express https://www.gainexpress.com/products/va-8061 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-va-8060-va-8060-digital-k-or-j-type-thermometer-thermocouple-with-4-probes-large-lcd-display-meter-tester-backlight-456472.jpg?v=1735489879 VA-8060 Digital K or J Type Thermometer Thermocouple with 4 Probes Large LCD Display Meter Tester Backlight VA - 8060 Digital K or J Type Thermometer Thermocouple with 4 Probes Large LCD Display Meter Tester Backlight - Gain Express https://www.gainexpress.com/products/8090 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-8090-8090-digital-non-contact-infrared-k-type-digital-thermometer-thermocouple-894311.jpg?v=1735489255 8090 Digital Non-contact Infrared & K-Type Digital Thermometer Thermocouple 8090 Digital Non - contact Infrared & K - Type Digital Thermometer Thermocouple - Gain Express https://www.gainexpress.com/products/810-100 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-810-100-810-100-digital-bevel-box-inclinometer-with-magnets-always-upright-display-protractor-large-lcd-917320.jpg?v=1735489258 810-100 Digital Bevel Box Inclinometer with Magnets & Always Upright Display Protractor Large LCD 810 - 100 Digital Bevel Box Inclinometer with Magnets & Always Upright Display Protractor Large LCD - Gain Express https://www.gainexpress.com/products/810-100ss 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-810-100ss-810-100ss-digital-bevel-box-inclinometer-with-spirit-level-angle-finder-protractor-always-upright-reading-627950.jpg?v=1732853909 810-100SS Digital Bevel Box Inclinometer with Spirit Level Angle Finder Protractor Always Upright Reading 810 - 100SS 810 - 100SS Digital Bevel Box Inclinometer with Spirit Level Angle Finder Protractor Always Upright Reading - Gain Express https://www.gainexpress.com/products/810-200 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-810-200-810-200-digital-protractor-always-upright-position-with-large-lcd-display-275603.jpg?v=1735489264 810-200 Digital Protractor Always Upright Position with Large LCD Display 810 - 200 Digital Protractor Always Upright Position with Large LCD Display - Gain Express https://www.gainexpress.com/products/836-1 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-836-1-836-1-digital-conductivity-tds-meter-ppm-ppt-us-ms-0c0f-pentype-water-quality-tester-with-atc-784156.jpg?v=1732853668 836-1 Digital Conductivity TDS Meter, ppm ppt uS mS °C/°F Pentype Water Quality Tester with ATC 836 - 1 836 - 1 Digital Conductivity TDS Meter, ppm ppt uS mS °C/°F Pentype Water Quality Tester with ATC - Gain Express https://www.gainexpress.com/products/837-1 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-837-1-837-1-salinity-temp-meter-pen-type-salt-water-quality-tester-atc-nacl-070-ppt-handheld-measurement-monitor-tester-for-saltwater-hydroponics-p-476965.jpg?v=1735489260 837-1 Salinity & Temp Meter, Pen Type Salt Water Quality Tester ATC NaCl 0~70 ppt, Handheld Measurement Monitor Tester, for Saltwater, Hydroponics, Pool, Aquarium, Fish Pond, Spa, Monitoring & Testing 837 - 1 Salinity & Temp Meter, Pen Type Salt Water Quality Tester ATC NaCl 0~70 ppt, Handheld Measurement Monitor Tester, for Saltwater, Hydroponics, Pool, Aquarium, Fish Pond, Spa, Monitoring & Testing - Gain Express https://www.gainexpress.com/products/8403 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-8403-8403-professional-digital-large-lcd-dissolved-oxygen-do-meter-tester-handheld-water-quality-tester-with-temperature-measurement-529771.jpg?v=1732853635 8403 Professional Digital Large LCD Dissolved Oxygen DO Meter Tester Handheld Water Quality Tester with Temperature Measurement 8403 8403 Professional Digital Large LCD Dissolved Oxygen DO Meter Tester Handheld Water Quality Tester with Temperature Measurement - Gain Express https://www.gainexpress.com/products/868-9 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-868-9-868-9-waterproof-digital-ph-meter-tester-thermometer-0c-0f-replaceable-electrode-pentype-design-300123.jpg?v=1732853873 868-9 Waterproof Digital pH Meter Tester Thermometer °C °F Replaceable Electrode Pentype Design 868 - 9 868 - 9 Waterproof Digital pH Meter Tester Thermometer °C °F Replaceable Electrode Pentype Design - Gain Express https://www.gainexpress.com/products/869-0 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-869-0-869-0-professional-ph-temperature-meter-tester-0c-0f-005ph-high-accuracy-portable-water-quality-device-581654.jpg?v=1732853874 869-0 Professional pH Temperature Meter Tester °C /°F ±0.05pH High Accuracy Portable Water Quality Device 869 - 0 869 - 0 Professional pH Temperature Meter Tester °C /°F ±0.05pH High Accuracy Portable Water Quality Device - Gain Express https://www.gainexpress.com/products/8723 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-8723-8723-digital-temperature-humidity-rh-meter-gauge-monitor-professional-thermo-hygrometer-psychrometer-with-dew-point-wet-bulb-temperature-hard--323676.jpg?v=1732853543 8723 Digital Temperature Humidity RH Meter Gauge Monitor, Professional Thermo-Hygrometer Psychrometer with Dew Point / Wet Bulb Temperature, Hard Case, Replaceable Probe 8723 8723 Digital Temperature Humidity RH Meter Gauge Monitor, Professional Thermo - Hygrometer Psychrometer with Dew Point / Wet Bulb Temperature, Hard Case, Replaceable Probe - Gain Express https://www.gainexpress.com/products/8803al_1m 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/8803AL_1M_preview_c1f1b752-8d65-4fc5-a8da-00e54137f94f.jpg?v=1636020471 8803AL_1M 3.5" Wireless 4 LED Inspection Borescope Waterproof Camera 9mm IP67 Endoscope DVR 1M Cable Gain Express 8803AL_1M 3.5" Wireless 4 LED Inspection Borescope Waterproof Camera 9mm IP67 Endoscope DVR 1M Cable https://www.gainexpress.com/products/8803al_2m 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/8803AL_2M_preview_c13808b6-4695-4d26-81ba-ab3c3276cafe.jpg?v=1636020471 8803AL_2M 3.5" Wireless/Wired Inspection Borescope Waterproof Camera 9mm Flexible Tube Endoscope + 2M Cable Gain Express 8803AL_2M 3.5" Wireless/Wired Inspection Borescope Waterproof Camera 9mm Flexible Tube Endoscope + 2M Cable https://www.gainexpress.com/products/az8908 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-az8908-az8908-pocket-thermo-anemometer-temperature-windchill-air-velocity-pocket-meter-ce-marking-428910.jpg?v=1732853749 AZ8908 Pocket Thermo Anemometer Temperature Windchill Air Velocity Pocket Meter CE Marking AZ8908 AZ8908 Pocket Thermo Anemometer Temperature Windchill Air Velocity Pocket Meter CE Marking - Gain Express https://www.gainexpress.com/products/88598 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-88598-88598-digital-4-channels-k-type-thermocouple-thermometer-sd-card-logger-high-low-alarm-big-lcd-display-965064.jpg?v=1732853671 88598 Digital 4 Channels K-type Thermocouple Thermometer SD Card Logger High / Low Alarm Big LCD Display 88598 88598 Digital 4 Channels K - type Thermocouple Thermometer SD Card Logger High / Low Alarm Big LCD Display - Gain Express https://www.gainexpress.com/products/ag-0200bb 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ag-0200bb-ag-0200bb-digital-3600-1800-bevel-box-inclinometer-with-magnets-protractor-angle-finder-010-accuracy-ip54-rate-104898.jpg?v=1735489254 AG-0200BB Digital 360° (±180°) Bevel Box / Inclinometer with Magnets Protractor Angle Finder 0.1° Accuracy IP54 Rate AG - 0200BB Digital 360° (±180°) Bevel Box / Inclinometer with Magnets Protractor Angle Finder 0.1° Accuracy IP54 Rate - Gain Express https://www.gainexpress.com/products/ag-02lb 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ag-02lb-ag-02lb-digital-3600-spirit-level-angle-gauge-inclinometer-w-magnets-box-type-180-degree-accuracy-01-degree-bevel-box-level-angle-finder-la-693305.jpg?v=1735489243 AG-02LB Digital 360° Spirit Level Angle Gauge Inclinometer w/ Magnets Box Type +/-180 degree Accuracy 0.1 degree Bevel Box Level Angle Finder Large LCD Display AG - 02LB Digital 360° Spirit Level Angle Gauge Inclinometer w/ Magnets Box Type +/ - 180 degree Accuracy 0.1 degree Bevel Box Level Angle Finder Large LCD Display - Gain Express https://www.gainexpress.com/products/ag-300d 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ag-300d-ag-300d-digital-2-in-1-angle-finder-meter-protractor-ruler-3600-600mm-ce-marking-digital-lcd-display-541935.jpg?v=1732853637 AG-300D Digital 2-in-1 Angle Finder Meter Protractor Ruler 360° 600mm CE marking Digital LCD Display AG - 300D AG - 300D Digital 2 - in - 1 Angle Finder Meter Protractor Ruler 360° 600mm CE marking Digital LCD Display - Gain Express https://www.gainexpress.com/products/ag-82201b 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ag-82201b-ag-82201b-digital-3600-level-meter-angle-finder-protractor-with-magnets-v-groove-010-accuracy-lcd-display-492969.jpg?v=1732853669 AG-82201B Digital 360° Level Meter Angle Finder Protractor with Magnets / V-groove 0.1° Accuracy LCD Display AG - 82201B AG - 82201B Digital 360° Level Meter Angle Finder Protractor with Magnets / V - groove 0.1° Accuracy LCD Display - Gain Express https://www.gainexpress.com/products/ag-82302 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ag-82302-ag-82302-digital-angle-finder-protractor-tool-with-spirit-level-0-3600-measuring-range-010-accuracy-631730.jpg?v=1732853669 AG-82302 Digital Angle Finder / Protractor Tool with Spirit Level 0 ~ 360° Measuring Range 0.1° Accuracy AG - 82302 AG - 82302 Digital Angle Finder / Protractor Tool with Spirit Level 0 ~ 360° Measuring Range 0.1° Accuracy - Gain Express https://www.gainexpress.com/products/am-4836c 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-am-4836c-am-4836c-digital-multi-function-thermo-anemometer-with-3-cup-type-sensor-portable-wind-speed-air-flow-gauge-weather-wind-velocity-directio-463060.jpg?v=1732853637 AM-4836C Digital Multi-function Thermo Anemometer with 3-Cup Type Sensor, Portable Wind Speed Air Flow Gauge, Weather Wind Velocity Direction Tester Meter AM - 4836C AM - 4836C Digital Multi - function Thermo Anemometer with 3 - Cup Type Sensor, Portable Wind Speed Air Flow Gauge, Weather Wind Velocity Direction Tester Meter - Gain Express https://www.gainexpress.com/products/am-4836v 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-am-4836v-am-4836v-digital-3-range-multi-function-thermo-anemometer-air-speed-wind-flow-temperature-velocity-beaufort-scale-backlight-weather-analys-799729.jpg?v=1735489311 AM-4836V Digital 3-range Multi-function Thermo Anemometer, Air Speed Wind Flow Temperature Velocity Beaufort Scale, Backlight, Weather Analysis, Navigation, Marine Applications, HVAC, Data Collection AM - 4836V Digital 3 - range Multi - function Thermo Anemometer, Air Speed Wind Flow Temperature Velocity Beaufort Scale, Backlight, Weather Analysis, Navigation, Marine Applications, HVAC, Data Collection - Gain Express https://www.gainexpress.com/products/am-816 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-am-816-am-816-2-in-1-mini-handheld-digital-anemometer-with-thermometer-air-flow-wind-speed-meter-beaufort-wind-scale-bar-graph-ideal-for-drone-flyi-570508.jpg?v=1735489321 AM-816 2-in-1 Mini Handheld Digital Anemometer with Thermometer, Air Flow Wind Speed Meter, Beaufort Wind Scale Bar Graph, Ideal for Drone Flying, Sailing, Ventilation System Airflow Measurement, m/S , km/H , Ft/min., Knots, mph, Celsius or Fahrenheit AM - 816 2 - in - 1 Mini Handheld Digital Anemometer with Thermometer, Air Flow Wind Speed Meter, Beaufort Wind Scale Bar Graph, Ideal for Drone Flying, Sailing, Ventilation System Airflow Measurement, m/S , km/H , Ft/min., Knots, mph, Celsius or Fahrenheit - Gain Express https://www.gainexpress.com/products/am-8901 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-am-8901-am-8901-2-in-1-digital-thermo-anemometer-air-flow-wind-speed-meter-5-parameters-ms-kmh-ftmin-knots-mph-with-thermometer-temperature-045ms-v-205422.jpg?v=1732853639 AM-8901 2-in-1 Digital Thermo-Anemometer, Air Flow Wind Speed Meter, 5 parameters (m/s, km/h, ft/min, knots & mph) with Thermometer Temperature, 0~45m/s Velocity Bar Graph Surf & Backlight AM - 8901 AM - 8901 2 - in - 1 Digital Thermo - Anemometer, Air Flow Wind Speed Meter, 5 parameters (m/s, km/h, ft/min, knots & mph) with Thermometer Temperature, 0~45m/s Velocity Bar Graph Surf & Backlight - Gain Express https://www.gainexpress.com/products/ar-111-110v 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/ar-111-us-110v-plug-in-ultrasonic-mosquito-repeller-electronic-non-toxic-repellent-pet-kids-safe-anti-insects-indoor-home-control-pest-509.jpg?v=1754986237 AR-111_US 110V Plug-in Ultrasonic Mosquito Repeller, Electronic Non Toxic Repellent, Pet & Kids Safe, Anti Insects Indoor Home Control AR - 111_US AR - 111_US 110V Plug - in Ultrasonic Mosquito Repeller, Electronic Non Toxic Repellent, Pet & Kids Safe, Anti Insects Indoor Home Control - Gain Express https://www.gainexpress.com/products/ar-131_us 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ar-131-us-ar-131-us-ultrasonic-plug-in-pest-control-repeller-electronic-insects-repellent-pet-kids-safe-mosquito-cockroach-spider-bugs-etc-687847.jpg?v=1732853670 AR-131_US Ultrasonic Plug-in Pest Control Repeller Electronic Insects Repellent, Pet Kids Safe, Mosquito Cockroach Spider Bugs etc AR - 131_US AR - 131_US Ultrasonic Plug - in Pest Control Repeller Electronic Insects Repellent, Pet Kids Safe, Mosquito Cockroach Spider Bugs etc - Gain Express https://www.gainexpress.com/products/c0588dr_1m 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/gain-express-gainexpress-Inspection-Camera-C0588DR_1M-preview_353.jpg?v=1565247838 C0588DR_1M Industrial Rotation Endoscope 1M with 5.5mm Video Inspection Borescope IP67 Camera Gain Express C0588DR_1M Industrial Rotation Endoscope 1M with 5.5mm Video Inspection Borescope IP67 Camera https://www.gainexpress.com/products/co588dr_3m 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/gain-express-gainexpress-Inspection-Camera-C0588DR_3M-preview_721.jpg?v=1565002590 C0588DR_3M Industrial 2-Way Rotation Endoscope 3M with 5.5mm Video Inspection Borescope IP67 Camera Gain Express C0588DR_3M Industrial 2-Way Rotation Endoscope 3M with 5.5mm Video Inspection Borescope IP67 Camera https://www.gainexpress.com/products/c0598am 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-c0598am-c0598am-usb-handheld-endoscope-7mm-camera-head-video-inspection-borescope-w-7-android-monitor-275047.jpg?v=1732854236 C0598AM USB Handheld Endoscope 7mm Camera Head Video Inspection Borescope w/ 7" Android Monitor C0598AM C0598AM USB Handheld Endoscope 7mm Camera Head Video Inspection Borescope w/ 7" Android Monitor - Gain Express https://www.gainexpress.com/products/c0599e_1m_5-5mm 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/C0599E_1m_5.5mm_preview_248.jpg?v=1565002815 C0599E_1M_5.5mm Industrial 3.5 Endoscope 5.5mm Camera Video & Sound Recording Borescope w/ Mic Gain Express C0599E_1M_5.5mm Industrial 3.5 Endoscope 5.5mm Camera Video & Sound Recording Borescope w/ Mic https://www.gainexpress.com/products/c0599e_1m_8-5mm 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/C0599E_1M_85mm_preview_926.jpg?v=1565002819 C0599E_1M_8.5mm Industrial Endoscope 3.5" LCD Monitor, 1M 8.5mm Inspection Camera 4 LED Light 2GB Card, Video Recording Borescope Gain Express C0599E_1M_8.5mm Industrial Endoscope 3.5" LCD Monitor, 1M 8.5mm Inspection Camera 4 LED Light 2GB Card, Video Recording Borescope https://www.gainexpress.com/products/c0599e_4m_8-5mm 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/C0599E_4m_8.5mm_preview.jpg?v=1622614367 C0599E_4M_8.5mm Industrial 3.5 Endoscope 8.5mm dia. Video & Sound Recording Borescope w/ 4M cable Gain Express C0599E_4M_8.5mm Industrial 3.5 Endoscope 8.5mm dia. 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2236C DT - 2236C 2in1 Digital Contact and Non - Contact Tachometer Laser / Photo m/min RPM Auto Ranging - Gain Express https://www.gainexpress.com/products/dt-2350pa 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-dt-2350pa-eu-dt-2350pa-handheld-stroboscope-with-5012000-fpm-rotational-speed-measure-digital-lcd-display-354384.jpg?v=1732853787 DT-2350PA Handheld Stroboscope with 50~12,000 FPM Rotational Speed Measure Digital LCD Display DT - 2350PA_EU DT - 2350PA Handheld Stroboscope with 50~12,000 FPM Rotational Speed Measure Digital LCD Display - Gain Express https://www.gainexpress.com/products/dt-6236b 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-dt-6236b-dt-6236b-2in1-digital-laser-photo-tachometer-non-contact-contact-rpm-gauge-ce-marking-handheld-tester-947440.jpg?v=1732853754 DT-6236B 2in1 Digital Laser Photo Tachometer Non-Contact & Contact RPM Gauge CE Marking Handheld Tester DT - 6236B DT - 6236B 2in1 Digital Laser Photo Tachometer Non - Contact & Contact RPM Gauge CE Marking Handheld Tester - Gain Express https://www.gainexpress.com/products/dvr3008 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-dvr3008-dvr3008-in-car-dvr-digital-video-eye-black-box-camera-recorder-w-usb-984398.jpg?v=1732853783 DVR3008 In Car DVR Digital Video Eye Black Box Camera Recorder w/ USB DVR3008 DVR3008 In Car DVR Digital Video Eye Black Box Camera Recorder w/ USB - Gain Express https://www.gainexpress.com/products/e-1325m 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-e-1325m-e-1325m-0-14-ph-electrode-probe-bnc-connector-300cm-cable-for-ph-meter-monitor-controller-test-sensor-replacement-kit-for-aquarium-hydropon-473928.jpg?v=1732853748 E-1325M 0-14 pH Electrode Probe BNC Connector, 300cm Cable for PH Meter Monitor Controller Test Sensor, Replacement Kit for Aquarium Hydroponics Plant Pool Spa E - 1325M E - 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200 E03HLD - 200 Handheld Halogen Leak Detector 305mm probe length Negative Corona Sensor Type with Dual - color LED Indicator - Gain Express https://www.gainexpress.com/products/e04-001 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/E04-001_whole2_528.jpg?v=1565064058 E04-001 Pocket-size Oscilloscope Rechargeable Digital Scopemeter Gain Express E04-001 Pocket-size Oscilloscope Rechargeable Digital Scopemeter https://www.gainexpress.com/products/e04-003 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-e04-003-e04-003-ultrasonic-leak-detector-transmitter-detects-air-water-dust-led-indicator-w-earphone-791403.jpg?v=1732853787 E04-003 Ultrasonic Leak detector & Transmitter Detects Air Water Dust LED Indicator w/ Earphone E04 - 003 E04 - 003 Ultrasonic Leak detector & Transmitter Detects Air Water Dust LED Indicator w/ Earphone - Gain Express https://www.gainexpress.com/products/e04-004 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-e04-004-fba-e04-004-brake-fluid-tester-detector-w-led-indicator-1800-foldable-testing-rod-car-auto-automotive-diagnostic-tool-oil-quality-driving-s-572914.jpg?v=1732853909 E04-004 Brake Fluid Tester Detector w/ LED Indicator & 180° Foldable Testing Rod, Car Auto Automotive Diagnostic Tool Oil Quality Driving Safety Check Analyzer E04 - 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4.4EC EC/ppm/CF Nutra-wand / Hydroponic Meter Stick https://www.gainexpress.com/products/ems-shipping-cost 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/EMS.jpg?v=1606968049 EMS Shipping Cost Gain Express EMS Shipping Cost https://www.gainexpress.com/products/ff-1108-1 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ff-1108-1-ff-1108-1-wired-100m-digital-sonar-transducer-fishfinder-alarm-portable-lcd-display-12m-cable-for-boat-kayak-ocean-ice-lake-fishing-797066.jpg?v=1735489482 FF-1108-1 Wired 100M Digital Sonar Transducer Fishfinder Alarm Portable LCD Display 12M Cable for Boat, Kayak, Ocean, Ice, Lake Fishing FF - 1108 - 1 Wired 100M Digital Sonar Transducer Fishfinder Alarm Portable LCD Display 12M Cable for Boat, Kayak, Ocean, Ice, Lake Fishing - Gain Express https://www.gainexpress.com/products/ff-3308-8 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ff3308-8-ff-3308-8-lucky-portable-underwater-fishing-inspection-camera-video-system-kit-w-35inch-handheld-color-live-view-display-monitor-20m-cable-951644.jpg?v=1732853788 FF-3308-8 LUCKY Portable Underwater Fishing & Inspection Camera Video System Kit w/ 3.5inch Handheld Color Live-view Display Monitor, 20m Cable, Cam with Wide Angle Lens & Far-infrared LED, CMD sensor Fish Finder Sea Locator FF3308 - 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518RU FF - 518RU Russian Version WRIST WATCH Wireless 45M FISH FINDER CLOCK Mode Colored LCD Display - Gain Express https://www.gainexpress.com/products/ff-718 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ff-718-ff-718-lucky-wired-water-resistant-100m-328ft-depth-professional-fish-finder-with-alarm-sonar-frequency-200khz-transducer-removable-adapter--881493.jpg?v=1732853789 FF-718 Lucky Wired Water Resistant (100m/ 328ft depth) Professional Fish Finder with Alarm Sonar Frequency 200kHz Transducer removable adapter with 180° adjustable Angle for Ocean, River, Lake and even on Icy Water for Ice Fishing FF - 718 FF - 718 Lucky Wired Water Resistant (100m/ 328ft depth) Professional Fish Finder with Alarm Sonar Frequency 200kHz Transducer removable adapter with 180° adjustable Angle for Ocean, River, Lake and even on Icy Water for Ice Fishing - Gain Express https://www.gainexpress.com/products/ff-718li 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ff-718li-ff-718li-lucky-rechargeable-waterproof-2-in-1-fish-finder-fishfinder-sonar-transducer-328ft-100m-depth-and-180m-coverage-wired-wireless-se-149174.jpg?v=1732853913 FF-718Li LUCKY Rechargeable Waterproof 2-in-1 Fish Finder Fishfinder Sonar Transducer 328ft / 100m depth and 180m coverage , Wired & Wireless Sensor Amateur, Professional Fishermen , Fishing Enthusiast FF - 718LI FF - 718Li LUCKY Rechargeable Waterproof 2 - in - 1 Fish Finder Fishfinder Sonar Transducer 328ft / 100m depth and 180m coverage , Wired & Wireless Sensor Amateur, Professional Fishermen , Fishing Enthusiast - Gain Express https://www.gainexpress.com/products/ff-718li-w 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ff-718li-w-ff-718li-w-rechargeable-wireless-45m-depth-fish-finder-w-180m-wireless-operation-range-sensor-806754.jpg?v=1735489475 FF-718Li-W Rechargeable Wireless 45M Depth Fish Finder w/ 180m Wireless Operation Range Sensor FF - 718Li - W Rechargeable Wireless 45M Depth Fish Finder w/ 180m Wireless Operation Range Sensor - Gain Express https://www.gainexpress.com/products/ff-718liw_ru 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ff-718liw-ru-ff-718liw-ru-russian-version-rechargeable-wireless-40m-depth-fish-finder-180m-wireless-range-sensor-221330.jpg?v=1732853792 FF-718LiW_RU Russian Version Rechargeable Wireless 40M Depth Fish Finder 180m Wireless Range Sensor FF - 718LiW_RU FF - 718LiW_RU Russian Version Rechargeable Wireless 40M Depth Fish Finder 180m Wireless Range Sensor - Gain Express https://www.gainexpress.com/products/ff-918 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ff-918-ff-918-2in1-wired-100m-wireless-45m-fish-finder-fishfinder-w-bottom-contour-display-495797.jpg?v=1732853753 FF-918 2in1 Wired 100M Wireless 45M Fish Finder Fishfinder w/ Bottom Contour Display FF - 918 FF - 918 2in1 Wired 100M Wireless 45M Fish Finder Fishfinder w/ Bottom Contour Display - Gain Express https://www.gainexpress.com/products/ffw-1108-1 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ffw-1108-1-ffw-1108-1-lucky-dot-matrix-wireless-sonar-sensor-fish-finder-with-audible-fish-alarm-backlight-depth-sounder-45m-147ft-for-fresh-and-sa-199431.jpg?v=1732853753 FFW-1108-1 LUCKY Dot Matrix Wireless Sonar Sensor Fish Finder with Audible Fish Alarm & Backlight, Depth Sounder 45m (147ft) for fresh and salt water, ocean, river, lake, sea, ice icy water, Fish Locator, Bottom Contour Weed Detector FFW - 1108 - 1 FFW - 1108 - 1 LUCKY Dot Matrix Wireless Sonar Sensor Fish Finder with Audible Fish Alarm & Backlight, Depth Sounder 45m (147ft) for fresh and salt water, ocean, river, lake, sea, ice icy water, Fish Locator, Bottom Contour Weed Detector - Gain Express https://www.gainexpress.com/products/ffw-718 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/ffw-718-lucky-portable-wireless-fish-finder-locator-with-45m-135ft-depth-120m-400ft-range-display-water-temperature-size-location-fishing-gear-tools-for-fresh-462.jpg?v=1755846677 FFW-718 Lucky Portable Wireless Fish Finder Locator with 45m (135ft) Depth & 120m (400ft) Wireless Range, Display Water Temperature/ Fish Size & Location, Fishing Gear Tools for Fresh & Salt water, Ocean, Sea, Lake, River, Ice Icy Water, 90° beam angle FFW 718 Lucky Portable Wireless Fish Finder Locator with 45m (135ft) Depth & 120m (400ft) Wireless Range Display Water https://www.gainexpress.com/products/ffw-718blk 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ffw-718blk-ffw-718blk-lucky-black-portable-wireless-fish-finder-locator-with-45m-135ft-depth-120m-400ft-wireless-range-display-temperature-fish-siz-662501.jpg?v=1732853755 FFW-718BLK Lucky Black Portable Wireless Fish Finder Locator with 45m (135ft) Depth & 120m (400ft) Wireless Range, Display Temperature/ Fish Size & Location Info, Fishing Gear Tools for Fresh & Salt water, Sea, Lake, River, Bottom Contour, 90° beam angle FFW - 718BLK FFW - 718BLK Lucky Black Portable Wireless Fish Finder Locator with 45m (135ft) Depth & 120m (400ft) Wireless Range, Display Temperature/ Fish Size & Location Info, Fishing Gear Tools for Fresh & Salt water, Sea, Lake, River, Bottom Contour, 90° beam angle - Gain Express https://www.gainexpress.com/products/ffw-718ru 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ffw-718ru-ffw-718ru-russian-version-wireless-45m-fish-finder-w-sensor-581674.jpg?v=1732853877 FFW-718RU Russian Version Wireless 45M Fish Finder w/ Sensor FFW - 718RU FFW - 718RU Russian Version Wireless 45M Fish Finder w/ Sensor - Gain Express https://www.gainexpress.com/products/m03w114 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/M03W114_backlight_grande_656.jpg?v=1565070175 M03W114 Fitness Watch Heart Rate Monitor Chest Belt Sensor Calorie Count Gain Express M03W114 Fitness Watch Heart Rate Monitor Chest Belt Sensor Calorie Count https://www.gainexpress.com/products/g0181105-80 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-g0181105-80-g0181105-80-digital-self-standing-depth-gauge-w-magnetic-feet-80mm-422149.jpg?v=1732853790 G0181105-80 Digital Self Standing Depth Gauge w/ Magnetic Feet 80mm G0181105 - 80 G0181105 - 80 Digital Self Standing Depth Gauge w/ Magnetic Feet 80mm - Gain Express https://www.gainexpress.com/products/g0182105-jy4 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-g0182105-jy4-fba-g0182105-jy4-digital-angle-finder-level-3600-spirit-level-upright-inclinometer-with-magnets-protractor-ruler-182831.jpg?v=1732853875 G0182105-JY4 Digital Angle Finder Level 360° Spirit Level Upright Inclinometer with Magnets Protractor Ruler G0182105 - JY4_FBA G0182105 - JY4 Digital Angle Finder Level 360° Spirit Level Upright Inclinometer with Magnets Protractor Ruler - Gain Express https://www.gainexpress.com/products/g01gr365 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-g01gr365-g01gr365-digital-level-angle-finder-tilt-gauge-spirit-level-with-magnetic-base-1800-235054.jpg?v=1732853873 G01GR365 Digital Level Angle Finder Tilt Gauge Spirit Level with Magnetic Base ±180° G01GR365 G01GR365 Digital Level Angle Finder Tilt Gauge Spirit Level with Magnetic Base ±180° - Gain Express https://www.gainexpress.com/products/ga-10 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/GA-10_preview_large_0a937878-66e6-48e7-b27f-7ee6b32e59e2.jpg?v=1614660714 GA-10 Fully Automatic Arm Blood Pressure Monitor 4 persons Memory bpm Gain Express GA-10 Fully Automatic Arm Blood Pressure Monitor 4 persons Memory bpm https://www.gainexpress.com/products/ga-30 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/GA-30_connect_549.jpg?v=1565071596 GA-30 Digital Arm Blood Pressure Heart Beat Auto Monitor Pulse Gain Express GA-30 Digital Arm Blood Pressure Heart Beat Auto Monitor Pulse https://www.gainexpress.com/products/gar-709 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/578421292_134.jpg?v=1649404527 GAR-709 Insulation Volt Resistance Tester Meter 0~20GΩ 50~1000V Gain Express GAR-709 Insulation Volt Resistance Tester Meter 0~20GΩ 50~1000V https://www.gainexpress.com/products/gd-7291 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gd-7291-gd-7291-precision-combustible-methane-propane-gas-leak-detector-618702.jpg?v=1732853876 GD-7291 Precision Combustible Methane Propane Gas Leak Detector GD - 7291 GD - 7291 Precision Combustible Methane Propane Gas Leak Detector - Gain Express https://www.gainexpress.com/products/gd-8800a 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gd-8800a-gd-8800a-combustible-gas-leak-detector-methane-propane-gasoline-butanol-509854.jpg?v=1735489468 GD-8800A Combustible Gas Leak Detector Methane Propane Gasoline Butanol GD - 8800A Combustible Gas Leak Detector Methane Propane Gasoline Butanol - Gain Express https://www.gainexpress.com/products/gl-01 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gl-01-2-gl-01-2-refractive-index-fluid-for-gem-refractometers-2-vials-approx-3mlvial-671032.jpg?v=1732853902 GL-01_2 Refractive Index Fluid for Gem Refractometers (2 vials, approx. 3ml/vial) GL - 01_2 GL - 01_2 Refractive Index Fluid for Gem Refractometers (2 vials, approx. 3ml/vial) - Gain Express https://www.gainexpress.com/products/glass-hs72 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-glass-hs72-glass-hs72-326660.jpg?v=1735489643 GLASS-HS72 GLASS - HS72 - Gain Express https://www.gainexpress.com/products/gm-1018 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gm-1018-gm-1018-10x-jeweler-loupe-magnifier-led-light-18mm-lens-367616.jpg?v=1732853906 GM-1018 10X Jeweler Loupe Magnifier + LED light, 18mm lens GM - 1018 GM - 1018 10X Jeweler Loupe Magnifier + LED light, 18mm lens - Gain Express https://www.gainexpress.com/products/gm10 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gm10-gm10-mini-10x-jeweler-loupe-magnifier-6-led-light-21mm-lens-155509.jpg?v=1732854156 GM10 Mini 10X Jeweler Loupe Magnifier + 6 LED light, 21mm lens GM10 GM10 Mini 10X Jeweler Loupe Magnifier + 6 LED light, 21mm lens - Gain Express https://www.gainexpress.com/products/gm100d 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gm100d-gm100d-professional-100m-laser-distance-meter-w-high-accuracy-15mm-471442.jpg?v=1732854160 GM100D Professional 100m Laser Distance Meter w/ High Accuracy ±1.5mm GM100D GM100D Professional 100m Laser Distance Meter w/ High Accuracy ±1.5mm - Gain Express https://www.gainexpress.com/products/gm11 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gm11-gm11-mini-10x-jeweler-loupe-magnifier-led-uv-light-21mm-lens-799337.jpg?v=1732853970 GM11 Mini 10X Jeweler Loupe Magnifier + LED & UV light, 21mm lens GM11 GM11 Mini 10X Jeweler Loupe Magnifier + LED & UV light, 21mm lens - Gain Express https://www.gainexpress.com/products/gm20 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gm20-gm20-20x-magnification-21mm-l-lens-jeweler-loupe-magnifier-6-led-light-332489.jpg?v=1732853872 GM20 20X Magnification 21mm l Lens Jeweler Loupe Magnifier + 6 LED light GM20 GM20 20X Magnification 21mm l Lens Jeweler Loupe Magnifier + 6 LED light - Gain Express https://www.gainexpress.com/products/gm21 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gm21-gm21-mini-jeweler-loupe-20x-magnifier-led-uv-light-21mm-lens-237847.jpg?v=1735489610 GM21 Mini Jeweler Loupe 20X Magnifier + LED & UV light 21mm lens GM21 Mini Jeweler Loupe 20X Magnifier + LED & UV light 21mm lens - Gain Express https://www.gainexpress.com/products/gm30 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gm30-gm30-30x-jeweler-loupe-magnifier-6-led-light-21mm-lens-340439.jpg?v=1732853878 GM30 30X Jeweler Loupe Magnifier + 6 LED light , 21mm lens GM30 GM30 30X Jeweler Loupe Magnifier + 6 LED light , 21mm lens - Gain Express https://www.gainexpress.com/products/gm31 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gm31-gm31-mini-30x-jeweler-loupe-magnifier-led-uv-light-21mm-lens-287078.jpg?v=1735489630 GM31 Mini 30X Jeweler Loupe Magnifier + LED & UV light 21mm lens GM31 Mini 30X Jeweler Loupe Magnifier + LED & UV light 21mm lens - Gain Express https://www.gainexpress.com/products/gm40d 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gm40d-gm40d-professional-40m-laser-distance-meter-w-high-accuracy-15mm-522606.jpg?v=1732854155 GM40D Professional 40m Laser Distance Meter w/ High Accuracy ±1.5mm GM40D GM40D Professional 40m Laser Distance Meter w/ High Accuracy ±1.5mm - Gain Express https://www.gainexpress.com/products/gm60d 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gm60d-gm60d-professional-60m-laser-distance-meter-w-high-accuracy-15mm-380973.jpg?v=1735489984 GM60D Professional 60m Laser Distance Meter w/ High Accuracy ±1.5mm GM60D Professional 60m Laser Distance Meter w/ High Accuracy ±1.5mm - Gain Express https://www.gainexpress.com/products/gm8908 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gm8908-gm8908-pocket-size-digital-thermo-anemometer-handheld-air-wind-flow-velocity-speed-meter-testing-gauge-backlight-lightweight-for-drone-kite--483882.jpg?v=1732853967 GM8908 Pocket-size Digital Thermo Anemometer, Handheld Air Wind Flow Velocity Speed Meter Testing Gauge Backlight, Lightweight for Drone Kite Flying Windsurfing GM8908 GM8908 Pocket - size Digital Thermo Anemometer, Handheld Air Wind Flow Velocity Speed Meter Testing Gauge Backlight, Lightweight for Drone Kite Flying Windsurfing - Gain Express https://www.gainexpress.com/products/gr-601 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gr-601-gr-601-2in1-light-source-gem-refractometer-gemstone-new-design-130181-ri-range-884850.jpg?v=1732853875 GR-601 2in1 Light Source Gem Refractometer Gemstone New Design 1.30~1.81 RI range GR - 601 GR - 601 2in1 Light Source Gem Refractometer Gemstone New Design 1.30~1.81 RI range - Gain Express https://www.gainexpress.com/products/gr-701 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gr-701-gr-701-gem-refractometer-silver-w-built-in-light-source-ri-oil-259688.jpg?v=1732853912 GR-701 Gem Refractometer (Silver) w/ Built-in Light Source + RI Oil GR - 701 GR - 701 Gem Refractometer (Silver) w/ Built - in Light Source + RI Oil - Gain Express https://www.gainexpress.com/products/gr-701b 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gr-701b-gr-701b-001-nd-scale-division-gem-refractometer-w-built-in-led-light-ri-oil-349879.jpg?v=1732853908 GR-701B 0.01 nD Scale Division Gem Refractometer w/ Built-in LED Light + RI Oil GR - 701B GR - 701B 0.01 nD Scale Division Gem Refractometer w/ Built - in LED Light + RI Oil - Gain Express https://www.gainexpress.com/products/gs-ps1 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gs-ps1-us-gs-ps1-desktop-standing-polariscope-built-in-led-rotatable-platform-2-glass-filter-987419.jpg?v=1732854236 GS-PS1 Desktop Standing Polariscope Built-in LED Rotatable Platform 2 Glass Filter GS - PS1_US GS - PS1 Desktop Standing Polariscope Built - in LED Rotatable Platform 2 Glass Filter - Gain Express https://www.gainexpress.com/products/gva-18b 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gva-18b-gva-18b-acdc-multimeter-auto-range-w-cd-usb-950626.jpg?v=1732853913 GVA-18B AC/DC Multimeter Auto Range w/ CD & USB GVA - 18B GVA - 18B AC/DC Multimeter Auto Range w/ CD & USB - Gain Express https://www.gainexpress.com/products/gva-19 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gva-19-gva-19-5-in-1-multimeter-with-lux-db-0c-rh-ac-dc-540846.jpg?v=1732853878 GVA-19 5-in-1 Multimeter with LUX, dB, °C, RH, AC, DC GVA - 19 GVA - 19 5 - in - 1 Multimeter with LUX, dB, °C, RH, AC, DC - Gain Express https://www.gainexpress.com/products/gva-503 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gva-503-gva-503-resistance-capacitance-diode-test-multimeter-meter-rc-smd-642610.jpg?v=1732853971 GVA-503 Resistance Capacitance Diode Test Multimeter Meter R/C SMD GVA - 503 GVA - 503 Resistance Capacitance Diode Test Multimeter Meter R/C SMD - Gain Express https://www.gainexpress.com/products/gva-505b 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gva-505b-gva-505b-rcd-auto-scan-tweezers-digital-multimeter-meter-smd-945407.jpg?v=1732853972 GVA-505B R/C/D Auto Scan Tweezers Digital Multimeter Meter SMD GVA - 505B GVA - 505B R/C/D Auto Scan Tweezers Digital Multimeter Meter SMD - Gain Express https://www.gainexpress.com/products/gw-20 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/GW-20_preview.jpg?v=1614661901 GW-20 Fully Automatic Wrist Blood Pressure Monitor 99 Memory Pulse bpm Gain Express GW-20 Fully Automatic Wrist Blood Pressure Monitor 99 Memory Pulse bpm https://www.gainexpress.com/products/gx-301 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gx-301-gx-301-dual-metal-pipe-fiber-optic-halogen-illuminator-342341.jpg?v=1735489601 GX-301 Dual Metal Pipe Fiber Optic Halogen Illuminator GX - 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E2 pH Electrode + 3m Cable + BNC Type Plug - Gain Express https://www.gainexpress.com/products/orp-1 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-orp-1-orp-1-orp-redox-electrode-bnc-type-connector-replacement-probe-for-tester-meter-monitor-controller-oxidation-reduction-potential-check-14cm-l-727588.jpg?v=1732854228 ORP-1 ORP Redox Electrode, BNC Type Connector Replacement Probe for Tester Meter Monitor Controller Oxidation Reduction Potential Check, 14cm Long 1.2cm Diameter 300cm Extra Long Cable ORP - 1 ORP - 1 ORP Redox Electrode, BNC Type Connector Replacement Probe for Tester Meter Monitor Controller Oxidation Reduction Potential Check, 14cm Long 1.2cm Diameter 300cm Extra Long Cable - Gain Express https://www.gainexpress.com/products/gx-orp2 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gx-orp2-gx-orp2-replaceable-orp-redox-electrode-01999-mv-for-orp-meter-300cm-300439.jpg?v=1735489642 GX-ORP2 Replaceable ORP REDOX Electrode 0~±1999 mV for ORP Meter 300cm GX - ORP2 Replaceable ORP REDOX Electrode 0~±1999 mV for ORP Meter 300cm - Gain Express https://www.gainexpress.com/products/hm-6561 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-hm-6561-hm-6561-portable-digital-rebound-leeb-hardness-tester-gauge-meter-690531.jpg?v=1732853969 HM-6561 Portable Digital Rebound Leeb Hardness Tester Gauge Meter HM - 6561 HM - 6561 Portable Digital Rebound Leeb Hardness Tester Gauge Meter - Gain Express https://www.gainexpress.com/products/hrm-2803 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/gain-express-gainexpress-Heart-Rate-Monitor-HRM-2803-preview1_941.jpg?v=1565072234 HRM-2803 Heart Rate Monitor Wireless Chest Strap Watch Fitness Belt Sport Gain Express HRM-2803 Heart Rate Monitor Wireless Chest Strap Watch Fitness Belt Sport https://www.gainexpress.com/products/hs-72 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-hs-72-hs-72-ring-light-62mm-72-led-microscope-camera-illuminator-flash-lens-565204.jpg?v=1732853874 HS-72 Ring Light 62mm 72 LED Microscope Camera Illuminator Flash Lens HS - 72 HS - 72 Ring Light 62mm 72 LED Microscope Camera Illuminator Flash Lens - Gain Express https://www.gainexpress.com/products/ht-6290 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ht-6290-ht-6290-professional-relative-humidity-temperature-meter-tester-517377.jpg?v=1732853971 HT-6290 Professional Relative Humidity Temperature Meter Tester HT - 6290 HT - 6290 Professional Relative Humidity Temperature Meter Tester - Gain Express https://www.gainexpress.com/products/ht-6510a 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/ht-6510a-digital-hardness-durometer-meter-tester-rubber-shore-a-159.jpg?v=1750735349 HT-6510A Digital Hardness Durometer Meter Tester Rubber Shore A HT-6510A Digital Hardness Durometer Meter Tester Rubber Shore A hardness tester https://www.gainexpress.com/products/ht-6510c 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/ht-6510c-digital-hardness-durometer-tester-for-plastic-middle-hard-rubber-materials-shore-c-613.jpg?v=1750735354 HT-6510C Digital Hardness Durometer Tester for Plastic, Middle Hard Rubber Materials Shore C HT-6510C Digital Hardness Durometer Tester for Plastic Middle Hard Rubber Materials Shore C hardness tester https://www.gainexpress.com/products/ht-6510d 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/ht-6510d-digital-hardness-durometer-meter-tester-plastic-shore-d-310.jpg?v=1750734128 HT-6510D Digital Hardness Durometer Meter Tester Plastic Shore D HT-6510D Digital Hardness Durometer Meter Tester Plastic Shore D hardness tester https://www.gainexpress.com/products/ir-280 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ir-280-ir-280-121-digital-infrared-ir-non-contact-thermometer-laser-50280-degree-c-58572-degree-f-range-756375.jpg?v=1732853870 IR-280 12:1 Digital Infrared IR Non-Contact Thermometer Laser -50~280 Degree C (-58~572 Degree F) Range IR - 280 IR - 280 12:1 Digital Infrared IR Non - Contact Thermometer Laser - 50~280 Degree C ( - 58~572 Degree F) Range - Gain Express https://www.gainexpress.com/products/ir-807 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ir-807-ir-807-digital-hygrometer-temperature-humidity-meter-lcd-clock-451823.jpg?v=1732854157 IR-807 Digital Hygrometer Temperature Humidity Meter LCD Clock IR - 807 IR - 807 Digital Hygrometer Temperature Humidity Meter LCD Clock - Gain Express https://www.gainexpress.com/products/ir-8560 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/IR-8560_preview_322.jpg?v=1565073245 IR-8560 Digital Non-Contact IR Thermometer -13~1040°F -25~560°C, 12:1 Gain Express IR-8560 Digital Non-Contact IR Thermometer -13~1040°F -25~560°C, 12:1 https://www.gainexpress.com/products/ir-872d 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ir-872d-ir-872d-5011500c-5821020f-201-infrared-ir-laser-thermometer-167638.jpg?v=1732854235 IR-872D 50~1150°C -58~2102°F 20:1 Infrared IR Laser Thermometer IR - 872D IR - 872D 50~1150°C - 58~2102°F 20:1 Infrared IR Laser Thermometer - Gain Express https://www.gainexpress.com/products/ir-g1150 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ir-g1150-ir-g1150-digital-201-professional-infrared-thermometer-011em-pyrometer-819305.jpg?v=1735489618 IR-G1150 Digital 20:1 Professional Infrared Thermometer 0.1~1EM Pyrometer IR - G1150 Digital 20:1 Professional Infrared Thermometer 0.1~1EM Pyrometer - Gain Express https://www.gainexpress.com/products/ir-g1150a 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ir-g1150a-ir-g1150a-501-non-contract-ir-infrared-laser-thermometer-3011500c-2221020f-011em-pyrometer-digital-professional-instant-read-hand-held-la-455917.jpg?v=1732853910 IR-G1150A 50:1 Non-contract IR Infrared Laser Thermometer -30~1150°C/ -22~2102°F 0.1~1EM Pyrometer, Digital Professional Instant Read Hand Held Laser IR Temp Meter for Cooking/ Automotive/ Industrial/ Lab IR - G1150A IR - G1150A 50:1 Non - contract IR Infrared Laser Thermometer - 30~1150°C/ - 22~2102°F 0.1~1EM Pyrometer, Digital Professional Instant Read Hand Held Laser IR Temp Meter for Cooking/ Automotive/ Industrial/ Lab - Gain Express https://www.gainexpress.com/products/ir-g1350 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ir-g1350-ir-g1350-digital-501-ir-laser-thermometer-011-em-pyrometer-2462-0f-257428.jpg?v=1732853970 IR-G1350 Digital 50:1 IR Laser Thermometer 0.1~1 EM Pyrometer 2462 °F IR - G1350 IR - G1350 Digital 50:1 IR Laser Thermometer 0.1~1 EM Pyrometer 2462 °F - Gain Express https://www.gainexpress.com/products/ir-g1650 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ir-g1650-ir-g1650-digital-501-pro-ir-thermometer-16500c-30020f-adjustable-115015.jpg?v=1735489626 IR-G1650 Digital 50:1 Pro IR Thermometer 1650°C 3002°F Adjustable IR - G1650 Digital 50:1 Pro IR Thermometer 1650°C 3002°F Adjustable - Gain Express https://www.gainexpress.com/products/ir-g300 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ir-g300-ir-g300-non-contact-ir-infrared-digital-thermometer-50-3800c-470660.jpg?v=1732853912 IR-G300 Non-Contact IR Infrared Digital Thermometer -50-380°C IR - G300 IR - G300 Non - Contact IR Infrared Digital Thermometer - 50 - 380°C - Gain Express https://www.gainexpress.com/products/ir-g550 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ir-g550-ir-g550-digital-non-contact-ir-infrared-digital-thermometer-58-10220f-511946.jpg?v=1735489627 IR-G550 Digital Non-Contact IR Infrared Digital Thermometer -58-1022°F IR - G550 Digital Non - Contact IR Infrared Digital Thermometer - 58 - 1022°F - Gain Express https://www.gainexpress.com/products/ir-g700 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ir-g700-ir-g700-digital-010099-em-infrared-thermometer-121-pyrometer-7000c-510053.jpg?v=1732853905 IR-G700 Digital 0.10~0.99 EM Infrared Thermometer 12:1 Pyrometer 700°C IR - G700 IR - G700 Digital 0.10~0.99 EM Infrared Thermometer 12:1 Pyrometer 700°C - Gain Express https://www.gainexpress.com/products/ir-g900 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ir-g900-ir-g900-digital-infrared-ir-laser-thermometer-509000c-5816520f-121-235305.jpg?v=1732853876 IR-G900 Digital Infrared IR Laser Thermometer -50~900°C -58~1652°F 12:1 IR - G900 IR - G900 Digital Infrared IR Laser Thermometer - 50~900°C - 58~1652°F 12:1 - Gain Express https://www.gainexpress.com/products/jdt-08 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-jdt-08-jdt-08-3in1-lcd-stud-detector-metal-voltage-cable-wood-finder-830293.jpg?v=1735489620 JDT-08 3in1 LCD Stud Detector Metal Voltage Cable Wood Finder JDT - 08 3in1 LCD Stud Detector Metal Voltage Cable Wood Finder - Gain Express https://www.gainexpress.com/products/jem-ii 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/jem-ii-diamond-tester-with-ultraviolet-uv-light-moissanite-testers-387.jpg?v=1750736706 JEM-II Diamond Tester with Ultraviolet (UV) Light JEM - 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318 Digital Pinless Non - invasive Inductive Moisture Meter Hard Soft Wood Drywall Masonry Scanner Tricolor Bar Graph Indicator Intelligent Lumber Timber Board Wet Dry Tester Traders Craftsmen DIY - Gain Express https://www.gainexpress.com/products/k01kc-330b 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-k01kc-330b-k01kc-330b-usb-digital-sound-level-datalogger-32k-memory-586158.jpg?v=1732854117 K01KC-330B USB Digital Sound Level Datalogger 32K Memory K01KC - 330B K01KC - 330B USB Digital Sound Level Datalogger 32K Memory - Gain Express https://www.gainexpress.com/products/kd-200 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-kd-200-kd-200-80-led-camera-microscope-ring-light-ce-warm-white-70mm-max-dia-611005.jpg?v=1732854159 KD-200 80 LED Camera Microscope Ring Light CE (warm white 70mm max dia) KD - 200 KD - 200 80 LED Camera Microscope Ring Light CE (warm white 70mm max dia) - Gain Express https://www.gainexpress.com/products/lx-1010b 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-lx-1010b-lx-1010b-digital-light-lux-meter-0-50000-lux-camera-photo-185446.jpg?v=1735489643 LX-1010B Digital Light Lux Meter 0 - 50,000 Lux Camera Photo LX - 1010B Digital Light Lux Meter 0 - 50,000 Lux Camera Photo - Gain Express https://www.gainexpress.com/products/lx-1020b 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-lx-1020b-lx-1020b-digital-light-meter-100000-lux-lcd-lab-photo-camera-696464.jpg?v=1732854229 LX-1020B Digital Light Meter 100,000 Lux LCD Lab Photo Camera LX - 1020B LX - 1020B Digital Light Meter 100,000 Lux LCD Lab Photo Camera - Gain Express https://www.gainexpress.com/products/lx-1330b 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-lx-1330b-lx-1330b-digital-light-level-meter-200000-lux-photo-camera-749065.jpg?v=1735489615 LX-1330B Digital Light Level Meter 200,000 Lux Photo Camera LX - 1330B Digital Light Level Meter 200,000 Lux Photo Camera - Gain Express https://www.gainexpress.com/products/lxa-318 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-lxa-318-lxa-318-digital-lux-light-meter-100000-lux-luxmeter-photo-lcd-796787.jpg?v=1735489615 LXA-318 Digital Lux Light Meter 100,000 Lux Luxmeter Photo LCD LXA - 318 Digital Lux Light Meter 100,000 Lux Luxmeter Photo LCD - Gain Express https://www.gainexpress.com/products/m0198103 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-m0198103-m0198103-carbon-monoxide-co-datalogger-0-999ppm-taiwan-made-656159.jpg?v=1732854231 M0198103 Carbon Monoxide CO Datalogger 0-999ppm Taiwan Made M0198103 M0198103 Carbon Monoxide CO Datalogger 0 - 999ppm Taiwan Made - Gain Express https://www.gainexpress.com/products/m0198113 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-m0198113-m0198113-usb-wall-mountdesktop-voc-datalogger-monitor-050ppm-597949.jpg?v=1732854355 M0198113 USB Wall mount/Desktop VOC Datalogger Monitor 0~50ppm M0198113 M0198113 USB Wall mount/Desktop VOC Datalogger Monitor 0~50ppm - Gain Express https://www.gainexpress.com/products/m0198132s 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-m0198132s-m0198132s-digital-3-in-1-co2-thermo-hygrometer-logger-made-in-taiwan-521784.jpg?v=1732854231 M0198132S Digital 3-in-1 CO2 Thermo-hygrometer Logger Made in Taiwan M0198132S M0198132S Digital 3 - in - 1 CO2 Thermo - hygrometer Logger Made in Taiwan - Gain Express https://www.gainexpress.com/products/m0198137 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-m0198137-m0198137-carbon-dioxide-temperature-humidity-rh-co2-monitor-taiwan-made-600758.jpg?v=1732854124 M0198137 Carbon Dioxide Temperature Humidity RH CO2 Monitor Taiwan Made M0198137 M0198137 Carbon Dioxide Temperature Humidity RH CO2 Monitor Taiwan Made - Gain Express https://www.gainexpress.com/products/m0198138 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-m0198138-m0198138-carbon-dioxide-temperature-humidity-rh-twa-stel-co2-monitor-402857.jpg?v=1732853971 M0198138 Carbon Dioxide Temperature Humidity RH TWA STEL CO2 Monitor M0198138 M0198138 Carbon Dioxide Temperature Humidity RH TWA STEL CO2 Monitor - Gain Express https://www.gainexpress.com/products/m0198171 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/M0198171_preview_618.jpg?v=1564999144 M0198171 Digital USB Interface Formaldehyde HCHO Thermo-hygrometer Meter Made in Taiwan Gain Express M0198171 Digital USB Interface Formaldehyde HCHO Thermo-hygrometer Meter Made in Taiwan https://www.gainexpress.com/products/m0198191 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-m0198191-m0198191-emf-elf-magnetic-field-gauss-meter-30300hz-taiwan-made-790591.jpg?v=1732853973 M0198191 EMF ELF Magnetic Field Gauss Meter 30~300Hz TAIWAN MADE M0198191 M0198191 EMF ELF Magnetic Field Gauss Meter 30~300Hz TAIWAN MADE - Gain Express https://www.gainexpress.com/products/m0198195 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-m0198195-m0198195-handheld-emfrf-3-axis-gauss-meter-field-strength-meter-50mhz-to-350ghz-172905.jpg?v=1735489604 M0198195 Handheld EMF/RF (3-axis Gauss Meter) Field Strength Meter 50MHz to 3.50GHz M0198195 Handheld EMF/RF (3 - axis Gauss Meter) Field Strength Meter 50MHz to 3.50GHz - Gain Express https://www.gainexpress.com/products/m0198518 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/m0198518-handheld-voc-meter-64k-memory-datalogger-taiwan-made-data-loggers-343.jpg?v=1750747747 M0198518 Handheld VOC Meter 64K Memory Datalogger Taiwan Made Gain Express M0198518 Handheld VOC Meter 64K Memory Datalogger Taiwan Made https://www.gainexpress.com/products/m0198537 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-m0198537-m0198537-indoor-carbon-dioxide-co2-monitor-datalogger-made-in-taiwan-848705.jpg?v=1732853971 M0198537 Indoor Carbon Dioxide (CO2) Monitor & Datalogger Made in Taiwan M0198537 M0198537 Indoor Carbon Dioxide (CO2) Monitor & Datalogger Made in Taiwan - Gain Express https://www.gainexpress.com/products/m0198583 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-m0198583-m0198583-patented-mini-usb-temperature-humidity-datalogger-taiwan-made-348139.jpg?v=1732854231 M0198583 Patented Mini USB Temperature & Humidity Datalogger TAIWAN MADE M0198583 M0198583 Patented Mini USB Temperature & Humidity Datalogger TAIWAN MADE - Gain Express https://www.gainexpress.com/products/m0198653 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-m0198653-m0198653-handheld-usb-thermo-hygro-anemometer-with-remote-vane-hvac-194350.jpg?v=1735489602 M0198653 Handheld USB Thermo-Hygro-Anemometer with Remote Vane HVAC M0198653 Handheld USB Thermo - Hygro - Anemometer with Remote Vane HVAC - Gain Express https://www.gainexpress.com/products/m0198837 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-m0198837-m0198837-digital-thermocouple-thermometer-meter-single-k-type-input-255061.jpg?v=1732854353 M0198837 Digital Thermocouple Thermometer Meter Single K-Type Input M0198837 M0198837 Digital Thermocouple Thermometer Meter Single K - Type Input - Gain Express https://www.gainexpress.com/products/m0198850 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-m0198850-m0198850-pen-type-k-type-bead-wire-thermocouple-thermometer-meter-made-in-taiwan-638217.jpg?v=1732854229 M0198850 Pen-type K type Bead Wire Thermocouple Thermometer Meter Made in Taiwan M0198850 M0198850 Pen - type K type Bead Wire Thermocouple Thermometer Meter Made in Taiwan - Gain Express https://www.gainexpress.com/products/m0198855 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-m0198855-m0198855-digital-k-type-thermocouple-thermometer-with-air-ambient-temperature-and-relative-humidity-rh-made-in-taiwan-503609.jpg?v=1732854122 M0198855 Digital K type Thermocouple Thermometer With Air Ambient Temperature and Relative Humidity (RH) Made in Taiwan M0198855 M0198855 Digital K type Thermocouple Thermometer With Air Ambient Temperature and Relative Humidity (RH) Made in Taiwan - Gain Express https://www.gainexpress.com/products/m0198876 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-m0198876-m0198876-pen-type-thermo-hygrometer-temperature-rh-heat-index-wgbt-866059.jpg?v=1732854153 M0198876 Pen Type Thermo Hygrometer Temperature RH Heat Index WGBT M0198876 M0198876 Pen Type Thermo Hygrometer Temperature RH Heat Index WGBT - Gain Express https://www.gainexpress.com/products/m03w117-0 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/m03w117-o-wireless-fitness-watch-heart-rate-monitor-chest-belt-sensor-blood-pressure-976.jpg?v=1750747565 M03W117-O Wireless Fitness Watch Heart Rate Monitor Chest Belt Sensor Gain Express M03W117-O Wireless Fitness Watch Heart Rate Monitor Chest Belt Sensor https://www.gainexpress.com/products/m03w118 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/M03W118_preview_grande_381.jpg?v=1565073653 M03W118 Stainless Steel Watch Heart Rate 30M Monitor Chest Belt Sensor Gain Express M03W118 Stainless Steel Watch Heart Rate 30M Monitor Chest Belt Sensor https://www.gainexpress.com/products/ma215 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ma215-ma215-professional-digital-differential-air-pressure-manometer-gauge-807067.jpg?v=1732853971 MA215 Professional Digital Differential Air Pressure Manometer Gauge MA215 MA215 Professional Digital Differential Air Pressure Manometer Gauge - Gain Express https://www.gainexpress.com/products/mac-500 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-mac-500-mac-500-mini-5mp-handheld-portable-digital-microscope-968473.jpg?v=1732853969 MAC-500 Mini 5MP Handheld Portable Digital Microscope MAC - 500 MAC - 500 Mini 5MP Handheld Portable Digital Microscope - Gain Express https://www.gainexpress.com/products/mc-7806 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-mc-7806-mc-7806-digital-moisture-meter-thermometer-wood-cotton-paper-808597.jpg?v=1732854159 MC-7806 Digital Moisture Meter & Thermometer, Wood Cotton Paper MC - 7806 MC - 7806 Digital Moisture Meter & Thermometer, Wood Cotton Paper - Gain Express https://www.gainexpress.com/products/mc-7812 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/gain-express-gainexpress-Moisture-meter-MC-7812_-preview_214.jpg?v=1565073631 MC-7812 Digital Inductive Wood Moisture Meter No destruction Gain Express MC-7812 Digital Inductive Wood Moisture Meter No destruction https://www.gainexpress.com/products/mc-7821 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/mc-7821-4-type-grain-moisture-temperature-celsius-fahrenheit-meter-964.jpg?v=1750747642 MC-7821 4-type Grain Moisture & Temperature (Celsius & Fahrenheit) Meter MC-7821 4-type Grain Moisture & Temperature (Celsius & Fahrenheit) Meter Moisture Meter https://www.gainexpress.com/products/mc-7825g 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-mc-7825g-mc-7825g-digital-moisture-meter-for-wide-range-of-grains-191056.jpg?v=1732854120 MC-7825G Digital Moisture Meter for wide range of grains MC - 7825G MC - 7825G Digital Moisture Meter for wide range of grains - Gain Express https://www.gainexpress.com/products/mc-7825ps 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-mc-7825ps-mc-7825ps-2-in-1-scanner-pin-type-moisture-meter-233074.jpg?v=1735489603 MC-7825PS 2-in-1 Scanner & Pin Type Moisture Meter MC - 7825PS 2 - in - 1 Scanner & Pin Type Moisture Meter - Gain Express https://www.gainexpress.com/products/md-814 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-md-814-md-814-digital-4-pin-wood-moisture-meter-540-414914.jpg?v=1735489602 MD-814 Digital 4-Pin Wood Moisture Meter (5%~40%) MD - 814 Digital 4 - Pin Wood Moisture Meter (5%~40%) - Gain Express https://www.gainexpress.com/products/mdn-814 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-mdn-814-mdn-814-wood-moisture-meter-tester-4-pin-5-40-new-design-583547.jpg?v=1735489601 MDN-814 Wood Moisture Meter Tester, 4 Pin, 5% - 40%, NEW DESIGN MDN - 814 Wood Moisture Meter Tester, 4 Pin, 5% - 40%, NEW DESIGN - Gain Express https://www.gainexpress.com/products/mfd350b 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-mfd350b-mfd350b-0-6000mm-mitech-digital-ultrasonic-flaw-detector-defectoscope-dac-avr-180556.jpg?v=1732854126 MFD350B 0-6000mm Mitech Digital Ultrasonic Flaw Detector Defectoscope DAC AVR MFD350B MFD350B 0 - 6000mm Mitech Digital Ultrasonic Flaw Detector Defectoscope DAC AVR - Gain Express https://www.gainexpress.com/products/mfd500b 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-mfd500b-mfd500b-0-9999mm-mitech-digital-ultrasonic-flaw-detector-defectoscope-dac-avr-steel-velocity-300637.jpg?v=1735489606 MFD500B 0-9999mm Mitech Digital Ultrasonic Flaw Detector Defectoscope DAC AVR Steel Velocity MFD500B 0 - 9999mm Mitech Digital Ultrasonic Flaw Detector Defectoscope DAC AVR Steel Velocity - Gain Express https://www.gainexpress.com/products/n-7202 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-n-7202-n-7202-desktop-led-light-for-polariscope-darkfield-loupe-943478.jpg?v=1732854122 N-7202 Desktop LED light for Polariscope / Darkfield Loupe N - 7202 N - 7202 Desktop LED light for Polariscope / Darkfield Loupe - Gain Express https://www.gainexpress.com/products/n03nf-308 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-n03nf-308-n03nf-308-multipurpose-network-cable-tracker-tester-5e-6e-telephone-coaxial-cable-853418.jpg?v=1732853977 N03NF-308 Multipurpose Network Cable Tracker Tester 5E 6E Telephone Coaxial Cable N03NF - 308 N03NF - 308 Multipurpose Network Cable Tracker Tester 5E 6E Telephone Coaxial Cable - Gain Express https://www.gainexpress.com/products/n03nf-388 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-n03nf-388-n03nf-388-multipurpose-network-lan-cable-tester-w-8-far-end-test-jacks-179127.jpg?v=1732854231 N03NF-388 Multipurpose Network LAN Cable Tester w/ 8 far-end test jacks N03NF - 388 N03NF - 388 Multipurpose Network LAN Cable Tester w/ 8 far - end test jacks - Gain Express https://www.gainexpress.com/products/n03nf-806r 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-n03nf-806r-n03nf-806r-network-lan-or-telephone-cable-wire-tracker-open-circuit-tester-581460.jpg?v=1735489603 N03NF-806R Network LAN or Telephone Cable Wire Tracker Open Circuit Tester N03NF - 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9 ND - 9 Handheld Digital Sound Noise Level Tester Calibrator for Sound Level Meter 94dB & 114dB output Class I w/ Battery +/ - 0.3 db Accuracy for microphone , sound measuring system for acoustics field and laboratory use - Gain Express https://www.gainexpress.com/products/ndl-025n 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ndl-025n-ndl-025n-25x-magnification-dental-loupes-galilean-style-nickel-alloy-frame-dental-surgical-medical-binocular-100mm-field-of-view-90mm-dept-981045.jpg?v=1735489603 NDL-025N 2.5x Magnification Dental Loupes, Galilean Style Nickel Alloy Frame, Dental Surgical Medical Binocular, 100mm Field of View+ 90mm Depth of Field+ 420mm Working Distance, Flip-Up Flexible Optical Glass Loupe Dentistry NDL - 025N 2.5x Magnification Dental Loupes, Galilean Style Nickel Alloy Frame, Dental Surgical Medical Binocular, 100mm Field of View+ 90mm Depth of Field+ 420mm Working Distance, Flip - Up Flexible Optical Glass Loupe Dentistry - Gain Express https://www.gainexpress.com/products/ndl-035n 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ndl-035n-ndl-035n-35x-magnification-dental-loupe-galilean-style-nickel-alloy-frame-dental-surgical-medical-binocular-60mm-field-of-view-55mm-depth--188376.jpg?v=1735489601 NDL-035N 3.5x Magnification Dental Loupe, Galilean Style Nickel Alloy Frame, Dental Surgical Medical Binocular, 60mm Field of View + 55mm Depth of Field + 420mm Working Distance, Flip-Up Flexible Optical Glass Loupe Dentistry NDL - 035N 3.5x Magnification Dental Loupe, Galilean Style Nickel Alloy Frame, Dental Surgical Medical Binocular, 60mm Field of View + 55mm Depth of Field + 420mm Working Distance, Flip - Up Flexible Optical Glass Loupe Dentistry - Gain Express https://www.gainexpress.com/products/ndl-040n 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ndl-040n-ndl-040n-40x-magnification-dental-loupes-prismatic-keplerian-style-nickel-alloy-frame-dental-surgical-medical-binocular-40mm-depth-of-fiel-885633.jpg?v=1735489619 NDL-040N 4.0x Magnification Dental Loupes, Prismatic Keplerian Style Nickel Alloy Frame, Dental Surgical Medical Binocular, 40mm Depth of Field+ 65mm Field of View+ 420mm Working Distance Loupe, Flip-Up Flexible Optical Glass Loupe Dentistry NDL - 040N 4.0x Magnification Dental Loupes, Prismatic Keplerian Style Nickel Alloy Frame, Dental Surgical Medical Binocular, 40mm Depth of Field+ 65mm Field of View+ 420mm Working Distance Loupe, Flip - Up Flexible Optical Glass Loupe Dentistry - Gain Express https://www.gainexpress.com/products/ndl-060n 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ndl-060n-ndl-060n-60x-magnification-dental-loupes-prismatic-keplerian-style-nickel-alloy-frame-dental-surgical-medical-binocular-45mm-field-of-view-958268.jpg?v=1732854124 NDL-060N 6.0x Magnification Dental Loupes, Prismatic Keplerian Style Nickel Alloy Frame, Dental Surgical Medical Binocular, 45mm Field of View+ 25mm Depth of Field Loupe+ 420mm Working Distance, Flip-Up Flexible Optical Glass Loupe Dentistry NDL - 060N NDL - 060N 6.0x Magnification Dental Loupes, Prismatic Keplerian Style Nickel Alloy Frame, Dental Surgical Medical Binocular, 45mm Field of View+ 25mm Depth of Field Loupe+ 420mm Working Distance, Flip - Up Flexible Optical Glass Loupe Dentistry - Gain Express https://www.gainexpress.com/products/cdc-88395 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-cdc-88395-optional-for-datalogger-software-cd-pc-link-usb-cable-set-cdc-88395-400781.jpg?v=1735489630 Optional for Datalogger Software CD & PC Link USB Cable Set ( CDC-88395 ) Optional for Datalogger Software CD & PC Link USB Cable Set ( CDC - 88395 ) - Gain Express https://www.gainexpress.com/products/glass-gx480 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-glass-gx480-optional-frosted-glass-diffuser-for-microscope-ring-light-gx-480-823948.jpg?v=1735489633 Optional Frosted Glass Diffuser for Microscope Ring Light ( GX-480) Optional Frosted Glass Diffuser for Microscope Ring Light ( GX - 480) - Gain Express https://www.gainexpress.com/products/cdc-sl814cd 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-cdc-sl814cd-optional-software-cd-usb-cable-for-sound-level-meter-cdc-sl814cd-444519.jpg?v=1735489644 OPTIONAL Software CD & USB Cable for Sound Level Meter ( CDC-SL814CD ) OPTIONAL Software CD & USB Cable for Sound Level Meter ( CDC - SL814CD ) - Gain Express https://www.gainexpress.com/products/orp-1692 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-orp-1692-orp-1692-0-1000mv-orp-redox-meter-tester-durable-accurate-144701.jpg?v=1732854235 ORP-1692 0-1000mV ORP REDOX METER TESTER DURABLE ACCURATE ORP - 1692 ORP - 1692 0 - 1000mV ORP REDOX METER TESTER DURABLE ACCURATE - Gain Express https://www.gainexpress.com/products/orp-1696 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-orp-1696-orp-1696-1999mv-orp-redox-meter-electrode-water-quality-tester-laboratory-aquarium-pool-482269.jpg?v=1732854351 ORP-1696 ±1999mV ORP REDOX Meter + Electrode Water Quality Tester Laboratory Aquarium Pool ORP - 1696 ORP - 1696 ±1999mV ORP REDOX Meter + Electrode Water Quality Tester Laboratory Aquarium Pool - Gain Express https://www.gainexpress.com/products/orp-8651 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-orp-8651-orp-8651-3-in-1-heavy-duty-ph-mv-temperature-meter-w-auto-buffer-recognition-193806.jpg?v=1735489623 ORP-8651 3-in-1 Heavy Duty pH, mV & Temperature Meter w/ auto buffer recognition ORP - 8651 3 - in - 1 Heavy Duty pH, mV & Temperature Meter w/ auto buffer recognition - Gain Express https://www.gainexpress.com/products/oz-30n 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-oz-30n-us-oz-30n-200mgh-ozone-generator-w-corona-discharge-220v-or-110v-low-power-consumption-755634.jpg?v=1732854159 OZ-30N 200mg/h Ozone Generator w/ Corona Discharge 220V or 110V Low Power Consumption OZ - 30N_US OZ - 30N 200mg/h Ozone Generator w/ Corona Discharge 220V or 110V Low Power Consumption - Gain Express https://www.gainexpress.com/products/ozx-1000bt 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/1-gainexpress-gain-express-ozone-generator-OZX-1000BT-preview_601.jpg?v=1565075824 OZX-1000BT Ozone Generator 1250mg/h Purifier Drinking Water Ozx-1000Bt Ozone Generator 1250Mg/h Purifier Drinking Water https://www.gainexpress.com/products/ozx-300at 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ozx-300at-us-ozx-300at-o3-generator-w-built-in-air-pump-timer-ozone-output-500mghr-115997.jpg?v=1735489637 OZX-300AT O3 Generator w/ Built-in Air Pump Timer, Ozone Output 500mg/hr OZX - 300AT O3 Generator w/ Built - in Air Pump Timer, Ozone Output 500mg/hr - Gain Express https://www.gainexpress.com/products/pc-104 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-pc-104-pc-104-ph-cl2-chlorine-level-meter-water-quality-tester-monitor-494113.jpg?v=1735489646 PC-104 pH CL2 Chlorine Level Meter Water Quality Tester Monitor PC - 104 pH CL2 Chlorine Level Meter Water Quality Tester Monitor - Gain Express https://www.gainexpress.com/products/phpowder 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-phpowder-ph-powder-calibration-solution-401-700-1001-ph-set-259102.jpg?v=1735489669 pH Powder Calibration Solution 4.01 7.00 10.01 pH set pH Powder Calibration Solution 4.01 7.00 10.01 pH set - Gain Express https://www.gainexpress.com/products/ph-0093 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ph-0093-ph-0093-digital-pen-type-ph-meter-tester-thermometer-temperature-000-1400-ph-range-308581.jpg?v=1732854238 PH-0093 Digital Pen-type pH Meter Tester Thermometer Temperature 0.00-14.00 pH range PH - 0093 PH - 0093 Digital Pen - type pH Meter Tester Thermometer Temperature 0.00 - 14.00 pH range - Gain Express https://www.gainexpress.com/products/ph-0131 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ph-0131-ph-0131-digital-ph-orp-mv-temperature-meter-water-quality-tester-with-atc-replaceable-ph-orp-electrode-detachable-temperature-probe-for-aqu-861399.jpg?v=1732854122 PH-0131 Digital pH / ORP mV / Temperature Meter Water Quality Tester with ATC Replaceable pH ORP Electrode Detachable Temperature Probe for Aquarium, Laboratory Test, Hydroponics Water Testing Tool PH - 0131 PH - 0131 Digital pH / ORP mV / Temperature Meter Water Quality Tester with ATC Replaceable pH ORP Electrode Detachable Temperature Probe for Aquarium, Laboratory Test, Hydroponics Water Testing Tool - Gain Express https://www.gainexpress.com/products/ph-014_red 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/ph-014-digital-pen-type-meter-0-14ph-atc-meters-401.jpg?v=1750748263 PH-014 Digital Pen Type pH Meter 0-14pH ATC Ph-014 Digital Pen Type Ph Meter 0-14Ph Atc Meters https://www.gainexpress.com/products/ph-025 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ph-025-us-ph-025-digital-ph-monitor-meter-atc-0001400ph-w-power-adaptor-15m-long-electrode-probe-continuous-water-quality-monitoring-tester-kit-aqu-269546.jpg?v=1735489669 PH-025 Digital pH Monitor Meter ATC 0.00~14.00pH w/ Power Adaptor & 1.5M Long Electrode Probe, Continuous Water Quality Monitoring Tester Kit Aquarium Hydroponics Spa Tank Pool Laboratories Portable PH - 025 Digital pH Monitor Meter ATC 0.00~14.00pH w/ Power Adaptor & 1.5M Long Electrode Probe, Continuous Water Quality Monitoring Tester Kit Aquarium Hydroponics Spa Tank Pool Laboratories Portable - Gain Express https://www.gainexpress.com/products/ph-025wo 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/1-gainexpress-gain-express-ph-meter-PH-025WO-preview_814.jpg?v=1565076760 PH-025WO Digital pH Monitor Meter ATC 0.00~14.00pH w/ 1.5M Long Cable Electrode Probe, Water Quality Monitoring Tester Kit Aquarium Hydroponics Spa Tank Pool Laboratories Mini Portable Ph-025Wo Digital Ph Monitor Meter Atc 0.00~14.00Ph W/ 1.5M Long Cable Electrode Probe Water Quality https://www.gainexpress.com/products/ph-031 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ph-031-ph-031-digital-pen-type-ph-meter-tester-000-1400-ph-range-940375.jpg?v=1732854121 PH-031 Digital Pen Type pH Meter Tester 0.00 - 14.00 pH Range PH - 031 PH - 031 Digital Pen Type pH Meter Tester 0.00 - 14.00 pH Range - Gain Express https://www.gainexpress.com/products/ph-032 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ph-032-ph-032-waterproof-ph-meter-w-replaceable-ph-electrode-771711.jpg?v=1735489665 PH-032 Waterproof pH Meter w/ replaceable pH Electrode PH - 032 Waterproof pH Meter w/ replaceable pH Electrode - Gain Express https://www.gainexpress.com/products/ph-002 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ph-002-ph-002-waterproof-ph-meter-with-auto-buffer-recognition-0c-0f-replaceable-electrode-341961.jpg?v=1735489670 PH-002 Waterproof pH Meter with Auto Buffer Recognition °C °F & Replaceable Electrode PH - 002 Waterproof pH Meter with Auto Buffer Recognition °C °F & Replaceable Electrode - Gain Express https://www.gainexpress.com/products/ph-201 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ph-201-eu-ph-201-digital-ph-controller-electrode-solutions-110v-or-220v-275556.jpg?v=1735489670 PH-201 Digital pH Controller + Electrode + Solutions 110V or 220V PH - 201 Digital pH Controller + Electrode + Solutions 110V or 220V - Gain Express https://www.gainexpress.com/products/ph-203 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ph-203-us-ph-203-digital-2-in-1-ph-orp-mv-co2-controller-meter-0001400ph-range-416863.jpg?v=1735489670 PH-203 Digital 2-in-1 pH ORP mV CO2 Controller Meter 0.00~14.00PH Range PH - 203 Digital 2 - in - 1 pH ORP mV CO2 Controller Meter 0.00~14.00PH Range - Gain Express https://www.gainexpress.com/products/ph-251 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ph-251-ph-251-new-ph-meter-adaptor-replaceable-electrode-342003.jpg?v=1735489676 PH-251 New pH Meter + Adaptor + Replaceable Electrode PH - 251 New pH Meter + Adaptor + Replaceable Electrode - Gain Express https://www.gainexpress.com/products/ph-301 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ph-301-us-ph-301-digital-ph-controller-bnc-electrode-220v-or-110v-co2-809442.jpg?v=1732854231 PH-301 DIGITAL PH CONTROLLER + BNC ELECTRODE 220V or 110V CO2 PH - 301_US PH - 301 DIGITAL PH CONTROLLER + BNC ELECTRODE 220V or 110V CO2 - Gain Express https://www.gainexpress.com/products/ph-803 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ph-803-eu-ph-803-digital-ph-orp-redox-2-in-1-controller-monitor-w-output-power-relay-control-electrode-probe-bnc-water-quality-meter-online-continu-563666.jpg?v=1732854231 PH-803 Digital pH ORP Redox 2 in 1 Controller Monitor w/ Output Power Relay Control, Electrode Probe BNC, Water Quality Meter Online Continuous Measurement Kit, for Aquarium Hydroponics Plant Pool Spa PH - 803_EU PH - 803 Digital pH ORP Redox 2 in 1 Controller Monitor w/ Output Power Relay Control, Electrode Probe BNC, Water Quality Meter Online Continuous Measurement Kit, for Aquarium Hydroponics Plant Pool Spa - Gain Express https://www.gainexpress.com/products/868-1 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/868-1-0-14-ph-temperature-meter-atc-dual-display-portable-digital-pen-type-tester-ip67-waterproof-dustproof-for-hydroponics-aquariums-drinking-water-quality-313.jpg?v=1754986191 868-1 0.0-14.0 pH & Temperature Meter ATC Dual Display, Portable Digital Pen-Type Tester, IP67 Waterproof Dustproof, for Hydroponics Aquariums Drinking Water Quality Control Testing 868 - 1 868 - 1 0.0 - 14.0 pH & Temperature Meter ATC Dual Display, Portable Digital Pen - Type Tester, IP67 Waterproof Dustproof, for Hydroponics Aquariums Drinking Water Quality Control Testing - Gain Express https://www.gainexpress.com/products/868-6 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-868-5-868-5-waterproof-ph-meter-with-temperature-auto-calibration-721218.jpg?v=1732853909 868-5 Waterproof pH meter with Temperature + Auto Calibration 868 - 5 868 - 5 Waterproof pH meter with Temperature + Auto Calibration - Gain Express https://www.gainexpress.com/products/phs-3385 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-phs-3385-phs-3385-waterproof-ph-meter-21-108ph-dipstick-919803.jpg?v=1732854121 PHS-3385 Waterproof pH Meter 2.1 - 10.8pH Dipstick PHS - 3385 PHS - 3385 Waterproof pH Meter 2.1 - 10.8pH Dipstick - Gain Express https://www.gainexpress.com/products/pht-027 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-pht-027-pht-027-7-in-1-meter-tester-orp-ph-cf-ec-tds-ppm-0f-0c-591706.jpg?v=1732854125 PHT-027 7-in-1 Meter Tester ORP , PH, CF, EC, TDS (PPM) °F °C PHT - 027 PHT - 027 7 - in - 1 Meter Tester ORP , PH, CF, EC, TDS (PPM) °F °C - Gain Express https://www.gainexpress.com/products/pm1208m_leather 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-pm1208m-leather-pm1208m-leather-gamma-master-ii-leather-strap-gamma-radiation-watch-489027.jpg?v=1732854232 PM1208M_leather Gamma Master II Leather Strap GAMMA RADIATION WATCH PM1208M_leather PM1208M_leather Gamma Master II Leather Strap GAMMA RADIATION WATCH - Gain Express https://www.gainexpress.com/products/pm1208m_steel 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-pm1208m-steel-pm1208m-steel-gamma-master-ii-nuclear-gamma-radiation-detector-dosimeter-watch-with-geiger-muller-tube-sensor-553268.jpg?v=1735489686 PM1208M_steel Gamma Master II Nuclear Gamma Radiation Detector Dosimeter Watch with Geiger-Muller Tube Sensor PM1208M_steel Gamma Master II Nuclear Gamma Radiation Detector Dosimeter Watch with Geiger - Muller Tube Sensor - Gain Express https://www.gainexpress.com/products/r01aok-2819 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-r01aok-2819-r01aok-2819-wireless-30m-indoor-outdoor-thermometersnow-alert-alarm-234826.jpg?v=1732854158 R01AOK-2819 Wireless 30m Indoor Outdoor Thermometer+Snow Alert Alarm R01AOK - 2819 R01AOK - 2819 Wireless 30m Indoor Outdoor Thermometer+Snow Alert Alarm - Gain Express https://www.gainexpress.com/products/r01aok-5018b 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/r01aok-5018b-digital-wireless-indoor-outdoor-weather-station-thermometer-484.jpg?v=1750750375 R01AOK-5018B Digital Wireless Indoor Outdoor Weather Station Thermometer R01Aok-5018B Digital Wireless Indoor Outdoor Weather Station Thermometer https://www.gainexpress.com/products/r01aok-5019 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/r01aok-5019-weather-station-dcf77-rcc-indoor-outdoor-thermometer-rh-703.jpg?v=1750749944 R01AOK-5019 Weather Station DCF77 RCC Indoor Outdoor Thermometer RH R01Aok-5019 Weather Station Dcf77 Rcc Indoor Outdoor Thermometer Rh https://www.gainexpress.com/products/rf-707 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-rf-707-rf-707-wireless-floating-swimming-pool-thermometer-1060-degree-c-14-140-degree-f-range-digital-199129.jpg?v=1735489667 RF-707 Wireless Floating Swimming Pool Thermometer 10~60 degree C (14 ~ 140 degree F) Range Digital RF - 707 Wireless Floating Swimming Pool Thermometer 10~60 degree C (14 ~ 140 degree F) Range Digital - Gain Express https://www.gainexpress.com/products/rha-503atc 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-rha-503atc-rha-503atc-handheld-antifreezebatterycleaning-fluid-refractometer-417781.jpg?v=1735489683 RHA-503ATC Handheld Antifreeze/Battery/Cleaning Fluid Refractometer RHA - 503ATC Handheld Antifreeze/Battery/Cleaning Fluid Refractometer - Gain Express https://www.gainexpress.com/products/rha-701atc 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-rha-701atc-rha-701atc-car-adblue-antifreeze-battery-windshield-fluid-refractometer-828697.jpg?v=1735489669 RHA-701ATC Car Adblue Antifreeze Battery Windshield Fluid Refractometer RHA - 701ATC Car Adblue Antifreeze Battery Windshield Fluid Refractometer - Gain Express https://www.gainexpress.com/products/rhan-100atc 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-rhan-100atc-rhan-100atc-new-0f-antifreezebatterycleaning-fluid-100atc-refractometer-648985.jpg?v=1732854356 RHAN-100ATC New °F Antifreeze/Battery/Cleaning Fluid 100ATC Refractometer RHAN - 100ATC RHAN - 100ATC New °F Antifreeze/Battery/Cleaning Fluid 100ATC Refractometer - Gain Express https://www.gainexpress.com/products/rhan-200atc 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-rhan-200atc-rhan-200atc-new-handheld-200atc-0c-antifreezebatterycleaning-fluid-refractometer-770137.jpg?v=1735489669 RHAN-200ATC New Handheld 200ATC °C Antifreeze/Battery/Cleaning Fluid Refractometer RHAN - 200ATC New Handheld 200ATC °C Antifreeze/Battery/Cleaning Fluid Refractometer - Gain Express https://www.gainexpress.com/products/rhb-10atc 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-rhb-10atc-rhb-10atc-portable-0-10-brix-refractometer-fruit-vegetable-juice-wine-maple-sap-593049.jpg?v=1735489670 RHB-10ATC Portable 0-10% Brix Refractometer Fruit Vegetable Juice Wine Maple Sap RHB - 10ATC Portable 0 - 10% Brix Refractometer Fruit Vegetable Juice Wine Maple Sap - Gain Express https://www.gainexpress.com/products/rhb-32atc 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-rhb-32atc-rhb-32atc-brix-refractometer-with-atc-0-32-brix-in-02-division-for-brandy-beer-fruits-cutting-liquid-cnc-vegetables-juices-soft-drinks-928795.jpg?v=1735489672 RHB-32ATC Brix Refractometer with ATC, 0-32% Brix in 0.2% division, for brandy, beer, fruits, Cutting Liquid, CNC, Vegetables, Juices, Soft Drinks RHB - 32ATC Brix Refractometer with ATC, 0 - 32% Brix in 0.2% division, for brandy, beer, fruits, Cutting Liquid, CNC, Vegetables, Juices, Soft Drinks - Gain Express https://www.gainexpress.com/products/rhbn-32atc 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-rhbn-32atc-rhbn-32atc-new-0-32-atc-handheld-brix-refractometer-172810.jpg?v=1735489733 RHBN-32ATC New 0-32% ATC Handheld Brix Refractometer RHBN - 32ATC New 0 - 32% ATC Handheld Brix Refractometer - Gain Express https://www.gainexpress.com/products/rhbn-90atc 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-rhbn-90atc-rhbn-90atc-new-handheld-5890-atc-honey-refractometer-water-brix-baume-with-atc-533232.jpg?v=1735489751 RHBN-90ATC New Handheld 58~90% ATC Honey Refractometer Water Brix Baume with ATC RHBN - 90ATC New Handheld 58~90% ATC Honey Refractometer Water Brix Baume with ATC - Gain Express https://www.gainexpress.com/products/rhcn-200atc 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-rhcn-200atc-rhcn-200atc-new-handheld-0-12gdl-atc-clinical-refractometer-119992.jpg?v=1735489748 RHCN-200ATC New Handheld 0-12g/dl ATC Clinical Refractometer RHCN - 200ATC New Handheld 0 - 12g/dl ATC Clinical Refractometer - Gain Express https://www.gainexpress.com/products/rhs-10atc 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-rhs-10atc-rhs-10atc-handheld-0-10-atc-salinity-refractometer-227056.jpg?v=1735489726 RHS-10ATC Handheld 0-10% ATC Salinity Refractometer RHS - 10ATC Handheld 0 - 10% ATC Salinity Refractometer - Gain Express https://www.gainexpress.com/products/rhsn-10atc 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-rhsn-10atc-rhsn-10atc-new-handheld-0-10-atc-salinity-refractometer-627654.jpg?v=1735489751 RHSN-10ATC New Handheld 0-10% ATC Salinity Refractometer RHSN - 10ATC New Handheld 0 - 10% ATC Salinity Refractometer - Gain Express https://www.gainexpress.com/products/rhw-80atc 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-rhw-80atc-rhw-80atc-handheld-0-80-atc-alcohol-refractometer-ww-0-80-158162.jpg?v=1735489727 RHW-80ATC Handheld 0-80% ATC Alcohol Refractometer (w/w 0-80%) RHW - 80ATC Handheld 0 - 80% ATC Alcohol Refractometer (w/w 0 - 80%) - Gain Express https://www.gainexpress.com/products/rhwn-25atcbr 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-rhwn-25atcbr-rhwn-25atcbr-0-25-atc-new-alcohol-refractometer-0-25vol-0-40brix-684445.jpg?v=1735489739 RHWN-25ATCBr 0-25% ATC New Alcohol Refractometer (0-25%VOL, 0-40%Brix) RHWN - 25ATCBr 0 - 25% ATC New Alcohol Refractometer (0 - 25%VOL, 0 - 40%Brix) - Gain Express https://www.gainexpress.com/products/cdc-az 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-cdc-az-cdc-az-rs232-cd-software-and-usb-cable-485890.jpg?v=1732854344 CDC-AZ RS232 CD Software and USB Cable CDC - AZ CDC - AZ RS232 CD Software and USB Cable - Gain Express https://www.gainexpress.com/products/rsg-100atc 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/RSG-100ATC_preview_581.jpg?v=1565078366 RSG-100ATC Handheld 0-32% ATC Brix & Beer Refractometer Sugar Wine Wort SG Rsg-100Atc Handheld 0-32% Atc Brix & Beer Refractometer Sugar Wine Wort Sg https://www.gainexpress.com/products/s07pg-410-n 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-s07pg-410-n-s07pg-410-n-mini-digital-gps-receiver-and-location-finder-camping-hiking-410073.jpg?v=1735489750 S07PG-410-N Mini Digital GPS Receiver and Location Finder Camping Hiking S07PG - 410 - N Mini Digital GPS Receiver and Location Finder Camping Hiking - Gain Express https://www.gainexpress.com/products/s08608b_1s 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/s08608b-1s-digital-wireless-indoor-outdoor-weather-station-temperature-humidity-rcc-clock-682.jpg?v=1754986414 S08608B_1S Digital Wireless Indoor/Outdoor Weather Station Temperature Humidity RCC Clock S08608B_1S Digital Wireless Indoor/Outdoor Weather Station Temperature Humidity RCC Clock - Gain Express https://www.gainexpress.com/products/s08s608b_2s 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-s08s608b-2s-s08s608b-2s-wireless-weather-forecast-station-indoor-outdoor-temperature-humidity-rcc-clock-with-2-sensors-214508.jpg?v=1735489740 S08S608B_2S Wireless Weather Forecast Station Indoor Outdoor Temperature Humidity RCC Clock with 2 sensors S08S608B_2S Wireless Weather Forecast Station Indoor Outdoor Temperature Humidity RCC Clock with 2 sensors - Gain Express https://www.gainexpress.com/products/s08s608b_3s 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-s08s608b-3s-s08s608b-3s-indoor-outdoor-weather-forecast-station-temperature-rcc-clock-calendar-with-3-sensors-686085.jpg?v=1735489727 S08S608B_3S Indoor Outdoor Weather Forecast Station Temperature RCC Clock Calendar with 3 sensors S08S608B_3S Indoor Outdoor Weather Forecast Station Temperature RCC Clock Calendar with 3 sensors - Gain Express https://www.gainexpress.com/products/s08s613b_2s 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-s08s613b-2s-s08s613b-2s-indooroutdoor-wireless-digital-weather-forecast-station-humidity-temperature-rcc-clock-calendar-with-2-sensors-433414.jpg?v=1735489731 S08S613B_2S Indoor/Outdoor Wireless Digital Weather Forecast Station Humidity Temperature RCC Clock Calendar with 2 sensors S08S613B_2S Indoor/Outdoor Wireless Digital Weather Forecast Station Humidity Temperature RCC Clock Calendar with 2 sensors - Gain Express https://www.gainexpress.com/products/sc-8108 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-sc-8108-sc-8108-network-cable-tester-multifunctional-tester-of-5e-6e-cat5-rj45-ethernet-lan-phone-cable-stp-utp-twin-twisted-cable-coaxial-wire-for-669146.jpg?v=1735489735 SC-8108 Network Cable Tester, Multifunctional Tester of 5E 6E Cat5 Rj45 Ethernet LAN Phone Cable STP/ UTP Twin Twisted Cable/ Coaxial Wire , for Checking Error/ Length/ Distance of Open & Close Circuit/ Far-end Recognizer SC - 8108 Network Cable Tester, Multifunctional Tester of 5E 6E Cat5 Rj45 Ethernet LAN Phone Cable STP/ UTP Twin Twisted Cable/ Coaxial Wire , for Checking Error/ Length/ Distance of Open & Close Circuit/ Far - end Recognizer - Gain Express https://www.gainexpress.com/products/sk-30 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-sk-30-sk-30-skin-facial-face-moisture-analyzer-monitor-tester-lcd-247820.jpg?v=1735489733 SK-30 Skin & Facial Face Moisture Analyzer Monitor Tester LCD SK - 30 Skin & Facial Face Moisture Analyzer Monitor Tester LCD - Gain Express https://www.gainexpress.com/products/sl-1351 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-sl-1351-sl-1351-digital-lcd-monitor-sound-noise-level-meter-30130dba-decibel-548615.jpg?v=1735489740 SL-1351 Digital LCD Monitor Sound Noise Level Meter 30~130dBA Decibel SL - 1351 Digital LCD Monitor Sound Noise Level Meter 30~130dBA Decibel - Gain Express https://www.gainexpress.com/products/sl-5868p-cd 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-sl-5868p-cd-sl-5868p-cd-sound-level-meter-with-rs-232c-software-via-usb-drive-278316.jpg?v=1735489731 SL-5868P-CD Sound Level Meter with RS-232C Software via USB Drive SL - 5868P - CD Sound Level Meter with RS - 232C Software via USB Drive - Gain Express https://www.gainexpress.com/products/sl-5868p-bt 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/1-gain-express-gainexpress-Sound-level-meter-SL-5868P-BT-preview.jpg?v=1739780860 SL-5868P-BT Professional Sound Level Meter 30~130dB USB Drive Software & Bluetooth https://www.gainexpress.com/products/gm-1357 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gm-1357-gm-1357-30130-db-digital-sound-pressure-level-noise-decibel-meter-tester-507450.jpg?v=1732854123 GM-1357 30~130 dB Digital Sound Pressure Level Noise Decibel Meter Tester GM - 1357 GM - 1357 30~130 dB Digital Sound Pressure Level Noise Decibel Meter Tester - Gain Express https://www.gainexpress.com/products/slm-814 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-slm-814-slm-814-digital-sound-pressure-level-meter-noise-decibel-130-db-173651.jpg?v=1735489744 SLM-814 Digital Sound Pressure Level Meter Noise Decibel 130 dB SLM - 814 Digital Sound Pressure Level Meter Noise Decibel 130 dB - Gain Express https://www.gainexpress.com/products/slm-814cd 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-slm-814cd-slm-814cd-digital-sound-level-meter-decibel-logger-40130db-usb-cd-284264.jpg?v=1735489726 SLM-814CD Digital Sound Level Meter Decibel Logger 40~130dB USB & CD SLM - 814CD Digital Sound Level Meter Decibel Logger 40~130dB USB & CD - Gain Express https://www.gainexpress.com/products/sm-852b 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-sm-852b-sm-852b-3-phase-sequence-rotation-indicator-tester-checker-867926.jpg?v=1735489722 SM-852B 3 Phase Sequence Rotation Indicator Tester Checker SM - 852B 3 Phase Sequence Rotation Indicator Tester Checker - Gain Express https://www.gainexpress.com/products/sns-718s 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-sns-718s-sns-718s-optional-extra-wireless-60m-sonar-sensor-for-fish-finder-items-464986.jpg?v=1735489745 SNS-718S Optional Extra Wireless 60M Sonar Sensor for Fish Finder Items SNS - 718S Optional Extra Wireless 60M Sonar Sensor for Fish Finder Items - Gain Express https://www.gainexpress.com/products/sns-8689 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-sns-8689-sns-8689-optional-replaceable-electrode-with-cap-for-ph-temperature-pen-meter-868-9-764383.jpg?v=1735489727 SNS-8689 Optional Replaceable Electrode with Cap for pH Temperature Pen Meter (868-9) SNS - 8689 Optional Replaceable Electrode with Cap for pH Temperature Pen Meter (868 - 9) - Gain Express https://www.gainexpress.com/products/sns-8690 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-sns-8690-sns-8690-optional-replaceable-electrode-for-waterproof-digital-ph-meter-temperature-869-0-194786.jpg?v=1732854348 SNS-8690 Optional Replaceable Electrode for Waterproof Digital PH meter Temperature (869-0) SNS - 8690 SNS - 8690 Optional Replaceable Electrode for Waterproof Digital PH meter Temperature (869 - 0) - Gain Express https://www.gainexpress.com/products/sns-dlg88395 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-sns-dlg88395-sns-dlg88395-optional-external-temperature-probe-for-humidity-temperature-datalogger-dlg-88395-556730.jpg?v=1735489738 SNS-DLG88395 Optional External Temperature Probe for Humidity & Temperature Datalogger (DLG-88395) SNS - DLG88395 Optional External Temperature Probe for Humidity & Temperature Datalogger (DLG - 88395) - Gain Express https://www.gainexpress.com/products/sns-orp99720 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-sns-orp99720-sns-orp99720-optional-orp-electrode-for-m0199720-298019.jpg?v=1735489744 SNS-ORP99720 optional ORP electrode for M0199720 SNS - ORP99720 optional ORP electrode for M0199720 - Gain Express https://www.gainexpress.com/products/srt-6200 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-srt-6200-srt-6200-surface-roughness-tester-2-parameters-ra-rz-779090.jpg?v=1735489887 SRT-6200 Surface Roughness Tester 2 Parameters (Ra, Rz) SRT - 6200 Surface Roughness Tester 2 Parameters (Ra, Rz) - Gain Express https://www.gainexpress.com/products/srt-6210 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-srt-6210-srt-6210-digital-surface-roughness-tester-4-parameters-ra-rz-rq-rt-596342.jpg?v=1735489846 SRT-6210 Digital Surface Roughness Tester 4 Parameters (Ra, Rz, Rq, Rt) SRT - 6210 Digital Surface Roughness Tester 4 Parameters (Ra, Rz, Rq, Rt) - Gain Express https://www.gainexpress.com/products/t013003wx 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/gain-express-gainexpress-Inspection-Camera-T013003WX-preview_110.jpg?v=1565058762 T013003WX WiFi Android iPhone Endoscope Borescope 9.8mm Camera 1M Cable T013003Wx Wifi Android Iphone Endoscope Borescope 9.8Mm Camera 1M Cable Inspection https://www.gainexpress.com/products/t013003wx_4m 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/gain-express-gainexpress-Inspection-Camera-T013003WX-4M_preview_455.jpg?v=1565058731 T013003WX_4M Wireless WiFi Endoscope Snake Scope Borescope Camera Android iPad 4M Cable T013003Wx_4M Wireless Wifi Endoscope Snake Scope Borescope Camera Android Ipad 4M Cable Inspection https://www.gainexpress.com/products/t04ws6810 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/T04WS6810_preview_grande_202ed75f-8c76-4ece-9207-6aa695c69d96.jpg?v=1564753641 T04WS6810 Technoline Radio RC Clock 30M Temperature Weather Station 220-240V only T04Ws6810 Technoline Radio Rc Clock 30M Temperature Weather Station 220-240V Only https://www.gainexpress.com/products/t04wt465 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-t04wt465-t04wt465-technoline-digital-quartz-radio-alarm-clock-220-240v-only-947285.jpg?v=1735489740 T04WT465 Technoline Digital Quartz Radio Alarm Clock 220-240V only T04WT465 Technoline Digital Quartz Radio Alarm Clock 220 - 240V only - Gain Express https://www.gainexpress.com/products/t206 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-t206-t206-solar-power-meter-btuft2h-wm2-radiation-energy-cell-tester-720985.jpg?v=1735489859 T206 Solar Power Meter BTU/(ft2*h) W/m2 Radiation Energy Cell Tester T206 Solar Power Meter BTU/(ft2*h) W/m2 Radiation Energy Cell Tester - Gain Express https://www.gainexpress.com/products/t91 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-t91-t91-gauss-emf-elf-meter-detector-electromagnetic-field-mg-168147.jpg?v=1735489915 T91 Gauss EMF ELF Meter Detector Electromagnetic Field mG T91 Gauss EMF ELF Meter Detector Electromagnetic Field mG - Gain Express https://www.gainexpress.com/products/t92 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-t92-t92-3-axis-gauss-emf-elf-meter-detector-electromagnetic-field-radiation-intensity-20-200-2000-mg-ut-frequency-302000-hz-handheld-portable-gauge-869128.jpg?v=1735489897 T92 3-Axis Gauss EMF ELF Meter Detector, Electromagnetic Field Radiation Intensity 20/ 200/ 2000 mG & uT, Frequency 30~2000 Hz, Handheld Portable Gauge for Microwave Computer Monitor Power Line T92 3 - Axis Gauss EMF ELF Meter Detector, Electromagnetic Field Radiation Intensity 20/ 200/ 2000 mG & uT, Frequency 30~2000 Hz, Handheld Portable Gauge for Microwave Computer Monitor Power Line - Gain Express https://www.gainexpress.com/products/t95 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-t95-t95-digital-3-axis-emf-rf-radiation-electrosmog-power-meter-tester-758479.jpg?v=1735489886 T95 Digital 3-AXIS EMF RF Radiation ElectroSmog Power Meter Tester T95 Digital 3 - AXIS EMF RF Radiation ElectroSmog Power Meter Tester - Gain Express https://www.gainexpress.com/products/tds-139 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-tds-139-tds-139-digital-pen-type-tds-conductivity-hydroponics-meter-0-1999-ppm-202310.jpg?v=1735489869 TDS-139 Digital Pen Type TDS / Conductivity / Hydroponics Meter 0-1999 PPm TDS - 139 Digital Pen Type TDS / Conductivity / Hydroponics Meter 0 - 1999 PPm - Gain Express https://www.gainexpress.com/products/tds-1392 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-tds-1392-tds-1392-01999-ppm-mgl-range-digital-tds-meter-monitor-power-adaptor-234125.jpg?v=1735489857 TDS-1392 0~1999 PPm (mg/L) Range Digital TDS Meter + Monitor + Power Adaptor TDS - 1392 0~1999 PPm (mg/L) Range Digital TDS Meter + Monitor + Power Adaptor - Gain Express https://www.gainexpress.com/products/th-8000 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-th-8000-th-8000-digital-2in1-body-surface-thermometer-human-forehead-0c-0f-506100.jpg?v=1735489892 TH-8000 Digital 2in1 Body & Surface Thermometer human Forehead °C / °F TH - 8000 Digital 2in1 Body & Surface Thermometer human Forehead °C / °F - Gain Express https://www.gainexpress.com/products/th-9000 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-th-9000-th-9000-one-1-second-digital-instant-ear-thermometer-baby-adult-558232.jpg?v=1735489854 TH-9000 One 1 Second Digital Instant Ear Thermometer Baby Adult TH - 9000 One 1 Second Digital Instant Ear Thermometer Baby Adult - Gain Express https://www.gainexpress.com/products/th-9806 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-th-9806-th-9806-2-in-1-aquarium-thermometer-for-tanks-rooms-969629.jpg?v=1735489814 TH-9806 2-in-1 Aquarium Thermometer for Tanks & Rooms TH - 9806 2 - in - 1 Aquarium Thermometer for Tanks & Rooms - Gain Express https://www.gainexpress.com/products/tm-8811 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-tm-8811-tm-8811-digital-ultrasonic-thickness-gauge-meter-15-200mm-609340.jpg?v=1735489822 TM-8811 Digital Ultrasonic Thickness Gauge Meter 1.5 - 200mm TM - 8811 Digital Ultrasonic Thickness Gauge Meter 1.5 - 200mm - Gain Express https://www.gainexpress.com/products/tm-8812 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-tm-8812-tm-8812-ultrasonic-digital-100-20000mm-thickness-meter-metal-non-metal-148037.jpg?v=1735489858 TM-8812 Ultrasonic Digital 1.00-200.00mm Thickness Meter Metal / Non-Metal TM - 8812 Ultrasonic Digital 1.00 - 200.00mm Thickness Meter Metal / Non - Metal - Gain Express https://www.gainexpress.com/products/tm100 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-tm100-tm100-ultrasonic-thickness-meter-tester-gauge-velocity-12225mm-metal-594872.jpg?v=1735489852 TM100 Ultrasonic Thickness Meter Tester Gauge Velocity 1.2~225mm Metal TM100 Ultrasonic Thickness Meter Tester Gauge Velocity 1.2~225mm Metal - Gain Express https://www.gainexpress.com/products/tmm-091 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-tmm-091-tmm-091-tenmars-radiation-geiger-counter-monitor-gamma-beta-dose-meter-nuclear-dosage-dosimeter-alarm-device-taiwan-made-480123.jpg?v=1735489870 TMM-091 Tenmars Radiation Geiger Counter Monitor Gamma Beta Dose Meter Nuclear Dosage Dosimeter Alarm Device Taiwan Made TMM - 091 Tenmars Radiation Geiger Counter Monitor Gamma Beta Dose Meter Nuclear Dosage Dosimeter Alarm Device Taiwan Made - Gain Express https://www.gainexpress.com/products/tp-02 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-tp-02-tp-02-optional-2-temperature-probes-for-digital-k-type-thermometer-dm-68022-997404.jpg?v=1735489861 TP-02 Optional 2 Temperature Probes for Digital K-Type Thermometer (DM-68022) TP - 02 Optional 2 Temperature Probes for Digital K - Type Thermometer (DM - 68022) - Gain Express https://www.gainexpress.com/products/oil-honey 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-oil-honey-for-new-design-or-traditional-honey-brix-refractometer-reference-block-and-dioptric-oil-oil-honey-963433.jpg?v=1735489539 For New design or Traditional Honey Brix Refractometer Reference Block and Dioptric oil (OIL-HONEY) For New design or Traditional Honey Brix Refractometer Reference Block and Dioptric oil (OIL - HONEY) - Gain Express https://www.gainexpress.com/products/air-dryer 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-air-dryer-use-for-ozone-generator-an-optional-air-dryer-moisture-absorbing-silica-beads-air-dryer-355431.jpg?v=1735489916 Use for Ozone Generator an Optional Air Dryer Moisture Absorbing Silica Beads ( AIR-DRYER ) Use for Ozone Generator an Optional Air Dryer Moisture Absorbing Silica Beads ( AIR - DRYER ) - Gain Express https://www.gainexpress.com/products/jdm-800 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-jdm-800-jdm-800-use-for-ozone-generator-an-optional-air-pump-available-in-110v-220v-jdm-800-814428.jpg?v=1732853871 JDM-800 Use for Ozone Generator an Optional Air pump Available in 110V & 220V ( JDM-800 ) JDM - 800 JDM - 800 Use for Ozone Generator an Optional Air pump Available in 110V & 220V ( JDM - 800 ) - Gain Express https://www.gainexpress.com/products/lx-1332b 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-lx-1332b-lx-1332b-professional-digital-lux-light-level-meter-1200000-lux-luminometer-illuminance-meter-4-ranges-tester-with-photodiode-and-filter-s-993464.jpg?v=1732854160 LX-1332B Professional Digital Lux/ Light Level Meter 1~200,000 Lux Luminometer Illuminance Meter, 4 Ranges Tester with Photodiode and Filter Sensor + Data HOLD Function LX - 1332B LX - 1332B Professional Digital Lux/ Light Level Meter 1~200,000 Lux Luminometer Illuminance Meter, 4 Ranges Tester with Photodiode and Filter Sensor + Data HOLD Function - Gain Express https://www.gainexpress.com/products/vc-2002 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-vc-2002-vc-2002-digital-function-signal-generator-multimeter-02hz-2mhz-911706.jpg?v=1735489825 VC-2002 Digital Function Signal Generator Multimeter 0.2Hz-2MHz VC - 2002 Digital Function Signal Generator Multimeter 0.2Hz - 2MHz - Gain Express https://www.gainexpress.com/products/vc-3165 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-vc-3165-vc-3165-precision-frequency-counter-001-hz-24-ghz-803402.jpg?v=1735489831 VC-3165 Precision Frequency Counter 0.01 Hz - 2.4 GHz VC - 3165 Precision Frequency Counter 0.01 Hz - 2.4 GHz - Gain Express https://www.gainexpress.com/products/vc-8145 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-vc-8145-vc-8145-dmm-digital-bench-top-multimeter-pc-analog-bar-meter-911861.jpg?v=1735489839 VC-8145 DMM Digital Bench Top Multimeter PC Analog Bar Meter VC - 8145 DMM Digital Bench Top Multimeter PC Analog Bar Meter - Gain Express https://www.gainexpress.com/products/vc-97 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/VC97_preview_373.jpg?v=1565079900 VC-97 Digital Multimeter Tester Thermometer Voltmeter AC DC Ohm Vc-97 Digital Multimeter Tester Thermometer Voltmeter Ac Dc Ohm Multimeters / Clamp Meters https://www.gainexpress.com/products/vc-99 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/1-gain-express-gainexpress-Multimeter-VC-99-preview_425.jpg?v=1565079896 VC-99 Professional Digital Multimeter, Auto-& Manual-Ranging, 6000 counts, with K-Type Thermocouple/ AC DC Voltage/ DCA/ ACA/ Ohm/ Hz/ Continuity/ Frequency/ Capacitance/ Resistance/ F/C Thermometer Vc-99 Professional Digital Multimeter Auto-& Manual-Ranging 6000 Counts With K-Type Thermocouple/ Ac https://www.gainexpress.com/products/vgt-800 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-vgt-800-vgt-800-ultrasonic-cleaner-600ml-jewellery-dental-watch-220v-494102.jpg?v=1735489909 VGT-800 Ultrasonic Cleaner 600ml Jewellery Dental Watch 220V VGT - 800 Ultrasonic Cleaner 600ml Jewellery Dental Watch 220V - Gain Express https://www.gainexpress.com/products/vid-12_1m 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-vid-12-1m-vid-12-1m-1m-inspection-camera-endoscope-35-detachable-wireless-lcd-9mm-diameter-4-led-4x-zoom-2gb-card-recording-borescope-tool-set-194973.jpg?v=1735489842 VID-12_1M 1M Inspection Camera Endoscope 3.5" Detachable Wireless LCD, 9mm Diameter 4 LED, 4X Zoom, 2GB Card, Recording Borescope Tool Set VID - 12_1M 1M Inspection Camera Endoscope 3.5" Detachable Wireless LCD, 9mm Diameter 4 LED, 4X Zoom, 2GB Card, Recording Borescope Tool Set - Gain Express https://www.gainexpress.com/products/vid-12_2m 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/gainexpress-gain-express-endoscope-VID-12_2M-previeww_481.jpg?v=1565058792 VID-12_2M Wireless 3.5" LCD Inspection Camera Endoscope Borescope + 2 Meter Cable Vid-12_2M Wireless 3.5 Lcd Inspection Camera Endoscope Borescope + 2 Meter Cable https://www.gainexpress.com/products/vid-4 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/VID-4_preview_561.jpg?v=1565261067 VID-4 Pipe Car 2.4" LCD Inspection BORESCOPE Video Camera + 1M Cable Vid-4 Pipe Car 2.4 Lcd Inspection Borescope Video Camera + 1M Cable https://www.gainexpress.com/products/vid-4_4m 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/VID-4_4Mpreview.jpg?v=1649401482 VID-4_4M 4M Cable 2.4" LCD Pipe Car Video Inspection Camera Endoscope Vid-4_4M 4M Cable 2.4 Lcd Pipe Car Video Inspection Camera Endoscope https://www.gainexpress.com/products/vid-4_7m 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/VID-4_7Mpreview.jpg?v=1649401482 VID-4_7M 2.4" LCD Pipe Car Inspection BORESCOPE Video Camera + 7M Cable Vid-4_7M 2.4 Lcd Pipe Car Inspection Borescope Video Camera + 7M Cable https://www.gainexpress.com/products/vid-6 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/VID-6_preview_779.jpg?v=1565058358 VID-6 Digital USB Endoscope Inspection Video Borescope Camera Vid-6 Digital Usb Endoscope Inspection Video Borescope Camera https://www.gainexpress.com/products/vid-700_1m 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/VID-700_1M_preview_122.jpg?v=1565058994 VID-700_1M Waterproof 3.5" Inspection Camera Endoscope Borescope 1M Cable Vid-700_1M Waterproof 3.5 Inspection Camera Endoscope Borescope 1M Cable https://www.gainexpress.com/products/vid-700_2m 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/VID-700_2M.jpg?v=1649401831 VID-700_2M Waterproof 3.5" Inspection Camera Endoscope Borescope + 2M Cable Vid-700_2M Waterproof 3.5 Inspection Camera Endoscope Borescope + 2M Cable https://www.gainexpress.com/products/vid-8 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/VID-8_preview.jpg?v=1649401482 VID-8 Industrial 2.4" Recordable Waterproof Endoscope Inspection Video + SD Card Vid-8 Industrial 2.4 Recordable Waterproof Endoscope Inspection Video + Sd Card Camera https://www.gainexpress.com/products/vid-8_4m 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/VID-8_4M_preview.jpg?v=1649401482 VID-8_4M Industrial 4M Cable Recordable Endoscope Inspection Video Camera Vid-8_4M Industrial 4M Cable Recordable Endoscope Inspection Video Camera https://www.gainexpress.com/products/vid-9 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/VID-9_preview.jpg?v=1649401482 VID-9 2.4" LCD Video Inspection Borescope Endoscope 4 LED Lights Vid-9 2.4 Lcd Video Inspection Borescope Endoscope 4 Led Lights Camera https://www.gainexpress.com/products/vid-98a 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/VID-98A_preview.jpg?v=1649401831 VID-98A 7mm Camera Digital USB Video Inspection Borescope Endoscope Vid-98A 7Mm Camera Digital Usb Video Inspection Borescope Endoscope https://www.gainexpress.com/products/vid-9_2m 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/VID-9_2M_preview.jpg?v=1649401498 VID-9_2M Industrial 2.4" LCD Video Borescope Endoscope 4 LED Lights + 2 meter cable Vid-9_2M Industrial 2.4 Lcd Video Borescope Endoscope 4 Led Lights + 2 Meter Cable Inspection Camera https://www.gainexpress.com/products/vm-6360 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-vm-6360-vm-6360-digital-vibration-meter-with-lcd-gauge-tester-analyzer-764045.jpg?v=1735489842 VM-6360 Digital Vibration Meter with LCD , Gauge Tester Analyzer VM - 6360 Digital Vibration Meter with LCD , Gauge Tester Analyzer - Gain Express https://www.gainexpress.com/products/ws-815 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ws-815-ws-815-digital-25kg55lb-lcd-fish-weighing-scale-w-rubber-side-handle-778094.jpg?v=1735489906 WS-815 Digital 25kg/55lb LCD Fish Weighing Scale w/ RUBBER SIDE HANDLE WS - 815 Digital 25kg/55lb LCD Fish Weighing Scale w/ RUBBER SIDE HANDLE - Gain Express https://www.gainexpress.com/products/wtm-1000 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-wtm-1000-wtm-1000-digital-window-tint-meter-light-transmittance-glass-265811.jpg?v=1735489922 WTM-1000 Digital Window Tint Meter Light Transmittance Glass WTM - 1000 Digital Window Tint Meter Light Transmittance Glass - Gain Express https://www.gainexpress.com/products/x01rz100 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-x01rz100-x01rz100-100m-meter-2mm-accuracy-laser-distance-w-bubble-spirit-level-349916.jpg?v=1735489986 X01RZ100 100M Meter ±2mm Accuracy Laser Distance w/ Bubble Spirit level X01RZ100 100M Meter ±2mm Accuracy Laser Distance w/ Bubble Spirit level - Gain Express https://www.gainexpress.com/products/x01rz40 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-x01rz40-x01rz40-40m-meter-2mm-accuracy-laser-distance-w-bubble-spirit-level-372921.jpg?v=1735489986 X01RZ40 40M Meter ±2mm Accuracy Laser Distance w/ Bubble Spirit level X01RZ40 40M Meter ±2mm Accuracy Laser Distance w/ Bubble Spirit level - Gain Express https://www.gainexpress.com/products/x01rz60 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-x01rz60-x01rz60-60m-meter-2mm-accuracy-laser-distance-w-bubble-spirit-level-897985.jpg?v=1735489987 X01RZ60 60M Meter ±2mm Accuracy Laser Distance w/ Bubble Spirit level X01RZ60 60M Meter ±2mm Accuracy Laser Distance w/ Bubble Spirit level - Gain Express https://www.gainexpress.com/products/x01rz80 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-x01rz80-x01rz80-80m-meter-2mm-accuracy-laser-distance-w-bubble-spirit-level-722670.jpg?v=1735489987 X01RZ80 80M Meter ±2mm Accuracy Laser Distance w/ Bubble Spirit level X01RZ80 80M Meter ±2mm Accuracy Laser Distance w/ Bubble Spirit level - Gain Express https://www.gainexpress.com/products/zd-05 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-zd-05-zd-05-waterproof-2in1-dual-soil-ph-level-moisture-meter-967893.jpg?v=1735489925 ZD-05 Waterproof 2in1 Dual Soil pH Level Moisture Meter ZD - 05 Waterproof 2in1 Dual Soil pH Level Moisture Meter - Gain Express https://www.gainexpress.com/products/zd-06 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-zd-06-zd-06-soil-ph-moisture-tester-meter-with-295mm-long-electrode-probe-waterproof-soil-tester-kit-tools-for-indoor-outdoor-gardens-plants-flower-848750.jpg?v=1735489916 ZD-06 Soil pH & Moisture Tester Meter with 295mm Long Electrode Probe Waterproof Soil Tester Kit Tools, for Indoor & Outdoor Gardens Plants Flowers Farming ZD - 06 Soil pH & Moisture Tester Meter with 295mm Long Electrode Probe Waterproof Soil Tester Kit Tools, for Indoor & Outdoor Gardens Plants Flowers Farming - Gain Express https://www.gainexpress.com/products/zd-07 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-zd-07-zd-07-4-in-1-soil-survey-instrument-ph-0f-0c-moisture-sunlight-653257.jpg?v=1735489924 ZD-07 4-in-1 Soil Survey Instrument ( pH °F / °C moisture sunlight ) ZD - 07 4 - in - 1 Soil Survey Instrument ( pH °F / °C moisture sunlight ) - Gain Express https://www.gainexpress.com/products/reb-32atc_lit 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/REB-32ATC_LIT-d.png?v=1756354794 REB-32ATC_LIT 0-32% ATC Handheld Brix Refractometer with Built-in LED light source https://www.gainexpress.com/products/zgrs-10atc 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-zgrs-10atc-zgrs-10atc-0-10-atc-handheld-salinity-refractometer-w-built-in-led-light-source-447968.jpg?v=1735489925 ZGRS-10ATC 0-10% ATC Handheld Salinity Refractometer w/ Built-in LED Light Source ZGRS - 10ATC 0 - 10% ATC Handheld Salinity Refractometer w/ Built - in LED Light Source - Gain Express https://www.gainexpress.com/products/m0198108 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-m0198108-m0198108-digital-carbon-monoxide-co-temperature-meter-made-in-taiwan-629462.jpg?v=1732854158 M0198108 Digital Carbon Monoxide (CO) Temperature Meter Made in Taiwan M0198108 M0198108 Digital Carbon Monoxide (CO) Temperature Meter Made in Taiwan - Gain Express https://www.gainexpress.com/products/rst-08081 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-rst-08081-rst-08081-digital-weight-luggage-fishing-hanging-scale-20kg-lb-oz-245779.jpg?v=1735489721 RST-08081 Digital Weight Luggage Fishing Hanging Scale 20kg lb oz RST - 08081 Digital Weight Luggage Fishing Hanging Scale 20kg lb oz - Gain Express https://www.gainexpress.com/products/rst-08085 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-rst-08085-rst-08085-portable-travel-luggage-hanging-scale-40kg10g-electronic-552457.jpg?v=1735489742 RST-08085 Portable Travel Luggage Hanging Scale 40Kg/10g Electronic RST - 08085 Portable Travel Luggage Hanging Scale 40Kg/10g Electronic - Gain Express https://www.gainexpress.com/products/77597 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-77597-77597-6-in-1-combo-multi-function-co2-co-temperature-humidity-rh-dp-wb-usb-data-logger-with-software-meter-iaq-tester-134382.jpg?v=1735489267 77597 6 in 1 Combo Multi-function CO2 & CO & Temperature, Humidity RH %, DP, WB, USB Data Logger with Software, Meter IAQ Tester 77597 6 in 1 Combo Multi - function CO2 & CO & Temperature, Humidity RH %, DP, WB, USB Data Logger with Software, Meter IAQ Tester - Gain Express https://www.gainexpress.com/products/m0198873 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-m0198873-m0198873-thermo-hygrometer-relative-humidity-temperature-meter-rh-tester-taiwan-made-370519.jpg?v=1732853968 M0198873 Thermo-Hygrometer Relative Humidity Temperature Meter RH Tester Taiwan Made M0198873 M0198873 Thermo - Hygrometer Relative Humidity Temperature Meter RH Tester Taiwan Made - Gain Express https://www.gainexpress.com/products/m0198585 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/M0198585_preview_436.jpg?v=1564999651 M0198585 Wallmount / Desktop Temperature Humidity RH Datalogger Monitor M0198585 Wallmount / Desktop Temperature Humidity Rh Datalogger Monitor Data Loggers https://www.gainexpress.com/products/vgt-1200_wo_heater 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-vgt-1200-wo-heater-vgt-1200-wo-heater-professional-13l-ultrasonic-cleaner-with-timer-205623.jpg?v=1735489855 VGT-1200_wo_heater Professional 1.3L Ultrasonic Cleaner with Timer VGT - 1200_wo_heater Professional 1.3L Ultrasonic Cleaner with Timer - Gain Express https://www.gainexpress.com/products/vgt-1200h 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-vgt-1200h-vgt-1200h-digital-13l-ultrasonic-cleaner-220v-60w-timer-with-heater-436097.jpg?v=1735489881 VGT-1200H Digital 1.3L Ultrasonic Cleaner 220V 60W Timer with Heater VGT - 1200H Digital 1.3L Ultrasonic Cleaner 220V 60W Timer with Heater - Gain Express https://www.gainexpress.com/products/ir-600 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ir-600-ir-600-digital-industrial-infrared-thermometer-324000c-267520f-121-laser-ir-gun-non-contact-measurement-portable-instant-measure-433479.jpg?v=1732853875 IR-600 Digital Industrial Infrared Thermometer, -32~400°C (-26~752°F) 12:1 Laser IR Gun Non-contact Measurement, Portable Instant Measure IR - 600 IR - 600 Digital Industrial Infrared Thermometer, - 32~400°C ( - 26~752°F) 12:1 Laser IR Gun Non - contact Measurement, Portable Instant Measure - Gain Express https://www.gainexpress.com/products/cond-21 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-cond-21-cond-21-waterproof-professional-digital-19990uscm-atc-conductivity-meter-ec-tester-taiwan-made-923546.jpg?v=1732853912 Cond-21 Waterproof Professional Digital 19990us/cm ATC Conductivity Meter EC Tester Taiwan Made Cond - 21 Cond - 21 Waterproof Professional Digital 19990us/cm ATC Conductivity Meter EC Tester Taiwan Made - Gain Express https://www.gainexpress.com/products/gm-30xx 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gm-30xx-gm-30xx-portable-30x-magnifying-optical-glass-led-light-jeweler-loupe-961830.jpg?v=1735489618 GM-30XX Portable 30x Magnifying Optical Glass LED Light Jeweler Loupe GM - 30XX Portable 30x Magnifying Optical Glass LED Light Jeweler Loupe - Gain Express https://www.gainexpress.com/products/m0198652 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-m0198652-m0198652-handheld-usb-thermo-hygro-anemometer-with-integrated-vane-hvac-made-in-taiwan-123916.jpg?v=1732853971 M0198652 Handheld USB Thermo-Hygro-Anemometer with Integrated Vane HVAC Made in Taiwan M0198652 M0198652 Handheld USB Thermo - Hygro - Anemometer with Integrated Vane HVAC Made in Taiwan - Gain Express https://www.gainexpress.com/products/m0198713 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-m0198713-m0198713-digital-2-in-1-pen-type-paper-moisture-spring-type-sensor-made-in-taiwan-862599.jpg?v=1732853971 M0198713 Digital 2-in-1 Pen-type Paper Moisture Spring Type Sensor Made in Taiwan M0198713 M0198713 Digital 2 - in - 1 Pen - type Paper Moisture Spring Type Sensor Made in Taiwan - Gain Express https://www.gainexpress.com/products/e03rc-4 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-e03rc-4-e03rc-4-digital-temperature-usb-interface-data-logger-16000-points-387826.jpg?v=1732853907 E03RC-4 Digital Temperature USB interface Data Logger 16000 Points E03RC - 4 E03RC - 4 Digital Temperature USB interface Data Logger 16000 Points - Gain Express https://www.gainexpress.com/products/az-8891 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-az-8891-az-8891-waterproof-digital-thermometer-monitor-beer-wine-meter-241649.jpg?v=1732853630 AZ-8891 Waterproof Digital Thermometer Monitor Beer Wine Meter AZ - 8891 AZ - 8891 Waterproof Digital Thermometer Monitor Beer Wine Meter - Gain Express https://www.gainexpress.com/products/ir-350 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ir-350-ir-350-digital-121-ds-infrared-ir-laser-non-contact-digital-thermometer-929947.jpg?v=1732853904 IR-350 Digital 12:1 DS Infrared IR Laser Non-Contact Digital Thermometer IR - 350 IR - 350 Digital 12:1 DS Infrared IR Laser Non - Contact Digital Thermometer - Gain Express https://www.gainexpress.com/products/va-6502 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-va-6502-va-6502-digital-food-cooking-kitchen-thermometer-temperature-meter-445900.jpg?v=1735489830 VA-6502 Digital Food Cooking Kitchen Thermometer Temperature Meter VA - 6502 Digital Food Cooking Kitchen Thermometer Temperature Meter - Gain Express https://www.gainexpress.com/products/e04-025 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-e04-025-e04-025-digital-non-magnetic-coating-thickness-gauge-car-painting-thickness-meter-tester-mini-handheld-tool-970654.jpg?v=1732853787 E04-025 Digital Non-Magnetic Coating Thickness Gauge Car Painting Thickness Meter Tester Mini Handheld Tool E04 - 025 E04 - 025 Digital Non - Magnetic Coating Thickness Gauge Car Painting Thickness Meter Tester Mini Handheld Tool - Gain Express https://www.gainexpress.com/products/rst-00466 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-rst-00466-rst-00466-portable-rst-digital-tire-tyre-air-pressure-gauge-5150-psi-bar-kpa-with-led-light-324019.jpg?v=1732854349 RST-00466 Portable RST Digital Tire Tyre Air Pressure Gauge 5~150 psi Bar Kpa with LED light RST - 00466 RST - 00466 Portable RST Digital Tire Tyre Air Pressure Gauge 5~150 psi Bar Kpa with LED light - Gain Express https://www.gainexpress.com/products/ldm-158 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ldm-158-ldm-158-handheld-ultrasonic-laser-distance-meter-60m-563461.jpg?v=1732854119 LDM-158 Handheld Ultrasonic Laser Distance Meter 60M LDM - 158 LDM - 158 Handheld Ultrasonic Laser Distance Meter 60M - Gain Express https://www.gainexpress.com/products/m0198101 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-m0198101-m0198101-digital-wall-mountdesktop-09999ppm-co-monitor-temperature-tester-made-in-taiwan-580846.jpg?v=1735489985 M0198101 Digital Wall mount/Desktop 0~9999ppm CO Monitor Temperature Tester Made in Taiwan M0198101 Digital Wall mount/Desktop 0~9999ppm CO Monitor Temperature Tester Made in Taiwan - Gain Express https://www.gainexpress.com/products/m0198158 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/M0198158_preview_321.jpg?v=1564999675 M0198158 Wallmount Smart LED Display VOC Carbon Dioxide (CO2) Temperature RH Monitor Made in Taiwan M0198158 Wallmount Smart Led Display Voc Carbon Dioxide (Co2) Temperature Rh Monitor Made In Taiwan https://www.gainexpress.com/products/m03w117gr 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/M03W117GR_preview.jpg?v=1649400742 M03W117GR Wireless Heart Rate Monitor 30M Fitness HRM Watch 30~240bpm M03W117Gr Wireless Heart Rate Monitor 30M Fitness Hrm Watch 30~240Bpm https://www.gainexpress.com/products/ff-916 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ff-916-ff-916-70m-wifi-fishfinder-sonar-ios-android-fish-finder-147-feet-45-meters-with-neoprene-bag-197553.jpg?v=1732853878 FF-916 70M WIFI Fishfinder Sonar IOS Android Fish Finder 147 FEET (45 Meters) with Neoprene Bag FF - 916 FF - 916 70M WIFI Fishfinder Sonar IOS Android Fish Finder 147 FEET (45 Meters) with Neoprene Bag - Gain Express https://www.gainexpress.com/products/aok-5018b_2s 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-aok-5018b-2s-aok-5018b-2s-weather-station-with-2-wireless-sensors-with-time-barometer-weather-forecast-temperature-humidity-sunrise-sunset-moonrise-568830.jpg?v=1732853874 AOK-5018B_2S Weather Station with 2 Wireless Sensors, with Time, Barometer Weather Forecast, Temperature, Humidity, Sunrise/ Sunset/ Moonrise/ Moonset, Date, Alarm & Snooze, Radio Controlled Clock RCC DST, 12/ 24-hour format, Indoor & Outdoor AOK - 5018B_2S AOK - 5018B_2S Weather Station with 2 Wireless Sensors, with Time, Barometer Weather Forecast, Temperature, Humidity, Sunrise/ Sunset/ Moonrise/ Moonset, Date, Alarm & Snooze, Radio Controlled Clock RCC DST, 12/ 24 - hour format, Indoor & Outdoor - Gain Express https://www.gainexpress.com/products/aok-5019_2s 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/1-gainexpress-gain-express-weather-station-AOK-5018B-preview_360.jpg?v=1565082714 AOK-5019_2S Weather Station with 2 Wireless Sensors, with Time, Barometer Weather Forecast, Temperature, Humidity, Sunrise/ Sunset/ Moonrise/ Moonset, Date, Alarm & Snooze, Radio Controlled Clock RCC DST, 12/ 24-hour format, Indoor & Outdoor AOK-5019_2S Weather Station with 2 Wireless Sensors, with Time, Barometer Weather Forecast, Temperature, Humidity, Sunrise/ Sunset/ Moonrise/ Moonset, Date, Alarm & Snooze, Radio Controlled Clock RCC DST, 12/ 24-hour format, Indoor & Outdoor - Gain Express https://www.gainexpress.com/products/sns-aok-5019 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/weather-station-sensor.jpg?v=1649400641 SNS-AOK-5019 Optional Wireless Remote Sensor for Barometer Weather Station Indoor Outdoor Thermometer Sns-Aok-5019 Optional Wireless Remote Sensor For Barometer Weather Station Indoor Outdoor https://www.gainexpress.com/products/m0198130 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-m0198130-m0198130-indoor-air-quality-co2-monitor-temp-wb-dp-twa-stel-vent-rate-879955.jpg?v=1735489625 M0198130 Indoor Air Quality CO2 Monitor Temp. WB DP TWA STEL & Vent Rate M0198130 Indoor Air Quality CO2 Monitor Temp. WB DP TWA STEL & Vent Rate - Gain Express https://www.gainexpress.com/products/m0199720 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-m0199720-m0199720-6-in-1-water-tester-combo-pen-ph-orp-ec-tds-salinity-temperature-143838.jpg?v=1732854229 M0199720 6-in-1 Water Tester Combo Pen pH, ORP, EC, TDS, Salinity, & Temperature M0199720 M0199720 6 - in - 1 Water Tester Combo Pen pH, ORP, EC, TDS, Salinity, & Temperature - Gain Express https://www.gainexpress.com/products/m0198111 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-m0198111-m0198111-wallmountdesktop-voc-monitor-030ppm-range-tester-temperature-rh-made-in-taiwan-312139.jpg?v=1732853967 M0198111 Wallmount/Desktop VOC Monitor 0~30ppm Range Tester Temperature RH Made in Taiwan M0198111 M0198111 Wallmount/Desktop VOC Monitor 0~30ppm Range Tester Temperature RH Made in Taiwan - Gain Express https://www.gainexpress.com/products/vm63a 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-vm63a-vm63a-handheld-digital-vibration-sensor-meter-tester-vibrometer-analyzer-acceleration-velocity-displacement-939435.jpg?v=1735489870 VM63A Handheld Digital Vibration Sensor Meter Tester Vibrometer Analyzer Acceleration Velocity Displacement VM63A Handheld Digital Vibration Sensor Meter Tester Vibrometer Analyzer Acceleration Velocity Displacement - Gain Express https://www.gainexpress.com/products/310-818 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-310-818-310-818-8-in-1-professional-digital-multi-scales-4-mode-psi-bar-kgfcm2-kpa-tire-pressure-gauge-130756.jpg?v=1732853142 310-818 8-in-1 Professional Digital Multi-Scales 4 mode PSI Bar Kgf/cm2 Kpa Tire Pressure Gauge 310 - 818 310 - 818 8 - in - 1 Professional Digital Multi - Scales 4 mode PSI Bar Kgf/cm2 Kpa Tire Pressure Gauge - Gain Express https://www.gainexpress.com/products/ir887-1 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ir887-1-ir887-1-non-contact-mini-ir-thermometer-laser-405000c-409320f-674206.jpg?v=1732853905 IR887-1 Non-Contact Mini IR Thermometer + Laser -40~500°C / -40~932°F IR887 - 1 IR887 - 1 Non - Contact Mini IR Thermometer + Laser - 40~500°C / - 40~932°F - Gain Express https://www.gainexpress.com/products/sp-7236c 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-sp-7236c-sp-7236c-digital-contact-laser-tachometer-rpm-counter-346416.jpg?v=1735489746 SP-7236C Digital Contact & Laser Tachometer RPM Counter SP - 7236C Digital Contact & Laser Tachometer RPM Counter - Gain Express https://www.gainexpress.com/products/th-8708 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-th-8708-th-8708-digital-hygro-thermometer-meter-dual-display-c-f-rh-981718.jpg?v=1735489838 TH-8708 Digital Hygro-Thermometer Meter Dual display ( C / F) & RH TH - 8708 Digital Hygro - Thermometer Meter Dual display ( C / F) & RH - Gain Express https://www.gainexpress.com/products/ph-025temp 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ph-025temp-ph-025temp-digital-ph-monitor-tester-meter-thermometer-aquarium-244885.jpg?v=1732854117 PH-025TEMP Digital pH Monitor Tester Meter Thermometer Aquarium PH - 025TEMP PH - 025TEMP Digital pH Monitor Tester Meter Thermometer Aquarium - Gain Express https://www.gainexpress.com/products/sp-7234c 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-sp-7234c-sp-7234c-photoelectric-distance-digital-non-contact-laser-tachometer-609839.jpg?v=1732854348 SP-7234C Photoelectric Distance Digital Non Contact Laser Tachometer SP - 7234C SP - 7234C Photoelectric Distance Digital Non Contact Laser Tachometer - Gain Express https://www.gainexpress.com/products/vc-9805a 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/VC-9805A_preview.jpg?v=1649399740 VC-9805A Multifunction Portable DMM Digital Multimeter Electrical Tester Inductance Thermometer Vc-9805A Multifunction Portable Dmm Digital Multimeter Electrical Tester Inductance Thermometer https://www.gainexpress.com/products/mr-011 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-mr-011-mr-011-watch-type-ultrasonic-electronic-anti-mosquito-killer-repeller-repellent-control-911631.jpg?v=1732854120 MR-011 Watch-type Ultrasonic Electronic Anti Mosquito Killer Repeller Repellent Control MR - 011 MR - 011 Watch - type Ultrasonic Electronic Anti Mosquito Killer Repeller Repellent Control - Gain Express https://www.gainexpress.com/products/mg-22181 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-mg-22181-mg-22181-mini-portable-2-in-1-jewelers-loupe-10x-20x-magnifier-dual-lens-138188.jpg?v=1735489640 MG-22181 Mini Portable 2 in 1 Jeweler's Loupe 10X & 20X Magnifier Dual Lens MG - 22181 Mini Portable 2 in 1 Jeweler's Loupe 10X & 20X Magnifier Dual Lens - Gain Express https://www.gainexpress.com/products/gm-20xx 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gm-20xx-gm-20xx-mini-20x-magnifying-optical-glass-led-light-jeweler-loupe-346413.jpg?v=1732854118 GM-20XX Mini 20x Magnifying Optical Glass LED Light Jeweler Loupe GM - 20XX GM - 20XX Mini 20x Magnifying Optical Glass LED Light Jeweler Loupe - Gain Express https://www.gainexpress.com/products/set-c 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-set-c-set-c-dichroscope-x-1-jadeite-filter-x-1-loupe-508642.jpg?v=1732854434 Set C DICHROSCOPE x 1 + JADEITE FILTER x 1 + LOUPE SET C Set C DICHROSCOPE x 1 + JADEITE FILTER x 1 + LOUPE - Gain Express https://www.gainexpress.com/products/set-d 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-set-d-gem-gemstone-gemological-identification-kit-x-4-set-d-355058.jpg?v=1732854120 GEM GEMSTONE GEMOLOGICAL IDENTIFICATION KIT x 4 Set D Set D GEM GEMSTONE GEMOLOGICAL IDENTIFICATION KIT x 4 Set D - Gain Express https://www.gainexpress.com/products/c0588g 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/C0588G_preview_194.jpg?v=1565059129 C0588G Watch Type Wearable Borescope endoscope Video inspection camera 8.5mm dia. + 1M Cable C0588G Watch Type Wearable Borescope endoscope Video inspection camera 8.5mm dia. + 1M Cable - Gain Express https://www.gainexpress.com/products/s08s3318bl_1s 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-s08s3318bl-1s-s08s3318bl-1s-digital-indooroutdoor-wireless-weather-station-temperature-dcf-radio-controlled-clock-992402.jpg?v=1735489747 S08S3318BL_1S Digital Indoor/Outdoor Wireless Weather Station Temperature DCF Radio Controlled Clock S08S3318BL_1S Digital Indoor/Outdoor Wireless Weather Station Temperature DCF Radio Controlled Clock - Gain Express https://www.gainexpress.com/products/s08s3318bl_2s 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-s08s3318bl-2s-s08s3318bl-2s-inout-temperature-wireless-weather-station-dcf-radio-controlled-clock-2-sensor-294900.jpg?v=1735489738 S08S3318BL_2S In/Out Temperature Wireless Weather Station DCF Radio Controlled Clock 2 Sensor S08S3318BL_2S In/Out Temperature Wireless Weather Station DCF Radio Controlled Clock 2 Sensor - Gain Express https://www.gainexpress.com/products/s08s3318bl_3s 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-s08s3318bl-3s-s08s3318bl-3s-indooroutdoor-temperature-digital-wireless-weather-station-rcc-dcf-3-sensors-689374.jpg?v=1735489731 S08S3318BL_3S Indoor/Outdoor Temperature Digital Wireless Weather Station RCC DCF + 3 sensors S08S3318BL_3S Indoor/Outdoor Temperature Digital Wireless Weather Station RCC DCF + 3 sensors - Gain Express https://www.gainexpress.com/products/e04-030 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-e04-030-e04-030-non-contact-ac-voltage-detector-51000v-cable-wire-socket-checker-led-indicator-buzzer-282928.jpg?v=1732853788 E04-030 Non-Contact AC Voltage Detector 5~1000V Cable Wire Socket Checker LED Indicator & Buzzer E04 - 030 E04 - 030 Non - Contact AC Voltage Detector 5~1000V Cable Wire Socket Checker LED Indicator & Buzzer - Gain Express https://www.gainexpress.com/products/e04-029 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-e04-029-e04-029-car-data-saver-12v-dc-hold-memory-code-engine-maintenance-radio-station-clock-setting-976129.jpg?v=1732854157 E04-029 Car Data Saver 12V DC Hold Memory Code Engine Maintenance Radio Station Clock Setting E04 - 029 E04 - 029 Car Data Saver 12V DC Hold Memory Code Engine Maintenance Radio Station Clock Setting - Gain Express https://www.gainexpress.com/products/e04-031 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-e04-031-e04-031-transmitter-receiver-cable-tester-identifier-alligator-clip-test-dc-voltage-continuity-overload-protection-795444.jpg?v=1732853875 E04-031 Transmitter & Receiver Cable Tester Identifier Alligator Clip Test DC Voltage Continuity Overload Protection E04 - 031 E04 - 031 Transmitter & Receiver Cable Tester Identifier Alligator Clip Test DC Voltage Continuity Overload Protection - Gain Express https://www.gainexpress.com/products/e04-028 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-e04-028-e04-028-automotive-diagnosis-tester-measure-dc-voltage-frequency-duty-cycle-led-indicator-ce-marking-542709.jpg?v=1732853789 E04-028 Automotive Diagnosis Tester Measure DC Voltage Frequency & Duty Cycle LED Indicator CE Marking E04 - 028 E04 - 028 Automotive Diagnosis Tester Measure DC Voltage Frequency & Duty Cycle LED Indicator CE Marking - Gain Express https://www.gainexpress.com/products/gm-268 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gm-268-gm-268-portable-multi-gloss-meter-tester-with-4-digits-backlight-lcd-972727.jpg?v=1732853903 GM-268 Portable Multi Gloss Meter Tester With 4 Digits Backlight LCD GM - 268 GM - 268 Portable Multi Gloss Meter Tester With 4 Digits Backlight LCD - Gain Express https://www.gainexpress.com/products/gm-026 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/gain-express-gainexpress-Gloss-meter-GM-026-whole_2_438.jpg?v=1565058415 GM-026 Handheld Gloss Meter 20 & 60 Degree Tile Floor Metal Surface 0.1 ~ 200 w/ Memory Gm-026 Handheld Gloss Meter 20 & 60 Degree Tile Floor Metal Surface 0.1 ~ 200 W/ Memory https://www.gainexpress.com/products/gm-06 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gm-06-gm-06-gloss-meter-60-degrees-with-range-01-200-gloss-units-233600.jpg?v=1735489628 GM-06 Gloss meter 60 Degrees With Range 0.1 ~ 200 Gloss Units GM - 06 Gloss meter 60 Degrees With Range 0.1 ~ 200 Gloss Units - Gain Express https://www.gainexpress.com/products/vm-6380-3d 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-vm-6380-vm-6380-digital-3-axis-vibration-meter-piezoelectric-sensor-displacement-velocity-acceleration-164532.jpg?v=1735489867 VM-6380 Digital 3-Axis Vibration Meter Piezoelectric Sensor Displacement Velocity Acceleration VM - 6380 Digital 3 - Axis Vibration Meter Piezoelectric Sensor Displacement Velocity Acceleration - Gain Express https://www.gainexpress.com/products/ss08s620pv_1s 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/S08S620PV_1S_preview_grande_2da3fa7e-11fb-4842-8ed3-8a7efb5a70dd.jpg?v=1564756750 S08S620PV_1S Indoor/Outdoor Wireless Weather Station Temperature Humidity RH Air Pressure RCC DCF with Bar Chart 110V / 220V S08S620Pv_1S Indoor/outdoor Wireless Weather Station Temperature Humidity Rh Air Pressure Rcc Dcf https://www.gainexpress.com/products/s08s620pv_2s 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/S08S620PV_2S_preview_0ef49746-4ebc-41b4-b0e3-80f230202501.jpg?v=1564756796 S08S620PV_2S Indoor/Outdoor Digital Wireless Weather Station Temperature Relative Humidity RH Air Pressure RCC DCF with Bar Chart + 2 sensors 110V / 220V S08S620Pv_2S Indoor/outdoor Digital Wireless Weather Station Temperature Relative Humidity Rh Air https://www.gainexpress.com/products/s08s620pv_3s 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/S08S620PV_3S_preview_eed7f030-fb3d-4960-bc56-707434a86b95.jpg?v=1564756845 S08S620PV_3S Wireless Weather Station Indoor/Outdoor Temperature Humidity RH Air Pressure RCC DCF Barometer with Bar Chart + 3 sensors 110V / 220V S08S620Pv_3S Wireless Weather Station Indoor/outdoor Temperature Humidity Rh Air Pressure Rcc Dcf https://www.gainexpress.com/products/e04-032 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-e04-032-e04-032-digital-clamp-meter-multimeter-dc-ac-voltage-current-resistance-diode-continuity-tester-lcd-display-770971.jpg?v=1735489477 E04-032 Digital Clamp Meter Multimeter DC AC Voltage Current Resistance Diode Continuity Tester LCD Display E04 - 032 Digital Clamp Meter Multimeter DC AC Voltage Current Resistance Diode Continuity Tester LCD Display - Gain Express https://www.gainexpress.com/products/e04-023 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-e04-023-e04-023-automotive-multimeter-ac-dc-voltage-current-resistance-continuity-tester-manual-auto-range-ce-marking-276432.jpg?v=1732853912 E04-023 Automotive Multimeter AC DC Voltage Current Resistance Continuity Tester Manual / Auto Range CE Marking E04 - 023 E04 - 023 Automotive Multimeter AC DC Voltage Current Resistance Continuity Tester Manual / Auto Range CE Marking - Gain Express https://www.gainexpress.com/products/srt-6100 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-srt-6100-srt-6100-high-accuracy-portable-surface-roughness-tester-rz-ra-364584.jpg?v=1735489742 SRT-6100 High Accuracy Portable Surface Roughness Tester Rz Ra SRT - 6100 High Accuracy Portable Surface Roughness Tester Rz Ra - Gain Express https://www.gainexpress.com/products/e04-033 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-e04-033-e04-033-clamp-meter-autorange-phase-sequence-test-dc-ac-voltage-ac-current-diode-digital-lcd-display-611079.jpg?v=1732853756 E04-033 Clamp Meter Autorange Phase Sequence Test DC AC Voltage AC Current Diode Digital LCD Display E04 - 033 E04 - 033 Clamp Meter Autorange Phase Sequence Test DC AC Voltage AC Current Diode Digital LCD Display - Gain Express https://www.gainexpress.com/products/e04-024 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-e04-024-e04-024-automotive-multimeter-scan-car-engine-analyzer-rpm-voltage-current-dwell-angle-w-buzzer-986943.jpg?v=1732853879 E04-024 Automotive Multimeter Scan Car Engine Analyzer RPM Voltage Current Dwell Angle w/ Buzzer E04 - 024 E04 - 024 Automotive Multimeter Scan Car Engine Analyzer RPM Voltage Current Dwell Angle w/ Buzzer - Gain Express https://www.gainexpress.com/products/cdc-s 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-cdc-s-cdc-s-usb-cable-rs232cd-software-with-25mm-diameter-jack-272030.jpg?v=1732854385 CDC-S USB Cable RS232CD Software with 2.5mm Diameter Jack CDC - S CDC - S USB Cable RS232CD Software with 2.5mm Diameter Jack - Gain Express https://www.gainexpress.com/products/cdc-b 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-cdc-b-cdc-b-usb-cable-rs232-cd-software-with-35mm-diameter-jack-957810.jpg?v=1732853626 CDC-B USB Cable RS232 CD Software with 3.5mm Diameter Jack CDC - B CDC - B USB Cable RS232 CD Software with 3.5mm Diameter Jack - Gain Express https://www.gainexpress.com/products/c0599d-5530l1 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/C0599D-5530L1_preview_957.jpg?v=1565060138 C0599D-5530L1 Handheld 2.4 inch Video Inspection 5.5mm Camera Endoscope 1M Cable 3 LED Borescope C0599D-5530L1 Handheld 2.4 inch Video Inspection 5.5mm Camera Endoscope 1M Cable 3 LED Borescope - Gain Express https://www.gainexpress.com/products/c0588b 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/C0588B_preview_472.jpg?v=1565059762 C0588B Portable 2.4"Video Inspection Endoscope 12mm Camera with Built-in 36" Cable C0588B Portable 2.4"Video Inspection Endoscope 12mm Camera with Built-in 36" Cable - Gain Express https://www.gainexpress.com/products/c0588as 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-c0588as-c0588as-usb-hd-85mm-camera-video-inspection-6-led-light-borescope-tape-style-endoscope-979796.jpg?v=1732853752 C0588AS USB HD 8.5mm Camera Video Inspection 6 LED Light Borescope Tape Style Endoscope C0588AS C0588AS USB HD 8.5mm Camera Video Inspection 6 LED Light Borescope Tape Style Endoscope - Gain Express https://www.gainexpress.com/products/c0599w2 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/c0599w2-wireless-wifi-handheld-endoscope-borescope-inspection-camera-with-6-led-ios-android-hd-80cm-8-5mm-cable-20m-range-405.jpg?v=1754986558 C0599W2 Wireless WIFI Handheld Endoscope Borescope Inspection Camera with 6 LED, iOS/ Android HD 80cm & 8.5mm Cable, 20M Wifi Range C0599W2 C0599W2 Wireless WIFI Handheld Endoscope Borescope Inspection Camera with 6 LED, iOS/ Android HD 80cm & 8.5mm Cable, 20M Wifi Range - Gain Express https://www.gainexpress.com/products/c0599h-5530l1 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/c0599h-5530l1-industrial-endoscope-3-5-lcd-video-inspection-5mm-camera-borescope-1m-cable-963.jpg?v=1754986501 C0599H-5530L1 Industrial Endoscope 3.5" LCD Video Inspection 5.5mm Camera Borescope 1M Cable C0599H - 5530L1 C0599H - 5530L1 Industrial Endoscope 3.5" LCD Video Inspection 5.5mm Camera Borescope 1M Cable - Gain Express https://www.gainexpress.com/products/c0599e-5530l1 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/1-gain-express-gainexpress-Inspection-Camera-99E-5530L1-preview_332.jpg?v=1565059773 C0599E-5530L1 Industrial 3.5inch LCD 5.5mm Camera Video Inspection 6 LED Lights Borescope Endoscope C0599E-5530L1 Industrial 3.5inch LCD 5.5mm Camera Video Inspection 6 LED Lights Borescope Endoscope - Gain Express https://www.gainexpress.com/products/m04-001 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-m04-001-m04-001-digital-laser-distance-meter-measure-area-volume-pythagoras-0140m-range-finder-745205.jpg?v=1732853972 M04-001 Digital Laser Distance Meter Measure Area Volume Pythagoras 0.1~40m Range Finder M04 - 001 M04 - 001 Digital Laser Distance Meter Measure Area Volume Pythagoras 0.1~40m Range Finder - Gain Express https://www.gainexpress.com/products/m04-002 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-m04-002-m04-002-digital-laser-distance-meter-measure-area-volume-pythagoras-60m197ft-range-finder-214026.jpg?v=1732854123 M04-002 Digital Laser Distance Meter Measure Area Volume Pythagoras 60m/197ft Range Finder M04 - 002 M04 - 002 Digital Laser Distance Meter Measure Area Volume Pythagoras 60m/197ft Range Finder - Gain Express https://www.gainexpress.com/products/m04-004 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-m04-004-m04-004-handheld-100m-laser-distance-meter-area-volume-indirect-measure-w-bubble-level-903009.jpg?v=1732854164 M04-004 Handheld 100m Laser Distance Meter Area Volume Indirect Measure w/ Bubble Level M04 - 004 M04 - 004 Handheld 100m Laser Distance Meter Area Volume Indirect Measure w/ Bubble Level - Gain Express https://www.gainexpress.com/products/vid-5 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-vid-5-vid-5-industrial-24-inch-tft-lcd-video-borescope-car-pipe-inspection-10mm-camera-772183.jpg?v=1735489846 VID-5 Industrial 2.4 inch TFT LCD Video Borescope Car Pipe Inspection 10mm Camera VID - 5 Industrial 2.4 inch TFT LCD Video Borescope Car Pipe Inspection 10mm Camera - Gain Express https://www.gainexpress.com/products/th-8800s 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-th-8800s-th-8800s-body-surface-temperature-non-contact-infrared-ir-thermometer-baby-adult-forehead-0c-0f-168336.jpg?v=1735489862 TH-8800S Body Surface Temperature Non Contact Infrared IR Thermometer Baby Adult Forehead °C °F TH - 8800S Body Surface Temperature Non Contact Infrared IR Thermometer Baby Adult Forehead °C °F - Gain Express https://www.gainexpress.com/products/ec-1382 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ec-1382-ec-1382-digital-ec-conductivity-meter-tester-water-01999-uscm-with-atc-electrode-302404.jpg?v=1732853787 EC-1382 Digital EC Conductivity Meter Tester Water 0~1999 us/cm with ATC & Electrode EC - 1382 EC - 1382 Digital EC Conductivity Meter Tester Water 0~1999 us/cm with ATC & Electrode - Gain Express https://www.gainexpress.com/products/c0598as_3m 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/C0598AS_preview_929.jpg?v=1565059939 C0598AS_3M USB Video Inspection Borescope 3M Cable Endoscope Pipe Snake Scope 8.5mm HD Camera C0598AS_3M USB Video Inspection Borescope 3M Cable Endoscope Pipe Snake Scope 8.5mm HD Camera - Gain Express https://www.gainexpress.com/products/tm-8818 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-tm-8818-tm-8818-ultrasonic-thickness-gauge-meter-aluminum-steel-cast-iron-pipes-09400mm-range-885574.jpg?v=1735489889 TM-8818 Ultrasonic Thickness Gauge Meter Aluminum Steel Cast Iron Pipes 0.9~400mm Range TM - 8818 Ultrasonic Thickness Gauge Meter Aluminum Steel Cast Iron Pipes 0.9~400mm Range - Gain Express https://www.gainexpress.com/products/wtm-1100 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-wtm-1100-wtm-1100-window-tint-meter-visual-light-transmission-18mm-thickness-continuous-measuring-860382.jpg?v=1735489909 WTM-1100 Window Tint Meter Visual Light Transmission 18mm Thickness Continuous Measuring WTM - 1100 Window Tint Meter Visual Light Transmission 18mm Thickness Continuous Measuring - Gain Express https://www.gainexpress.com/products/vm-6370 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-vm-6370-vm-6370-vibration-meter-piezoelectric-sensor-displacement-velocity-acceleration-10hz10khz-range-642195.jpg?v=1735489825 VM-6370 Vibration Meter Piezoelectric Sensor Displacement Velocity Acceleration 10Hz~10kHz Range VM - 6370 Vibration Meter Piezoelectric Sensor Displacement Velocity Acceleration 10Hz~10kHz Range - Gain Express https://www.gainexpress.com/products/mc-7828pp 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-mc-7828pp-mc-7828pp-digital-wood-moisture-meter-pin-type-cotton-paper-80-led-indicator-tester-245397.jpg?v=1735489639 MC-7828PP Digital Wood Moisture Meter Pin Type Cotton Paper 80% LED Indicator Tester MC - 7828PP Digital Wood Moisture Meter Pin Type Cotton Paper 80% LED Indicator Tester - Gain Express https://www.gainexpress.com/products/mc-7828gg 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-mc-7828gg-mc-7828gg-digital-050-grain-moisture-meter-tester-handheld-with-case-led-indicator-checker-cup-sensor-for-36-species-seed-rice-coffee-soy-770838.jpg?v=1732854124 MC-7828GG Digital 0~50% Grain Moisture Meter Tester Handheld with Case LED Indicator Checker Cup Sensor for 36 Species Seed Rice Coffee Soya Bean Wheat Corn Hygrometer Humidity MC - 7828GG MC - 7828GG Digital 0~50% Grain Moisture Meter Tester Handheld with Case LED Indicator Checker Cup Sensor for 36 Species Seed Rice Coffee Soya Bean Wheat Corn Hygrometer Humidity - Gain Express https://www.gainexpress.com/products/x01rz-e60 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-x01rz-e60-x01rz-e60-digital-60-meter-laser-distance-area-volume-pythagorean-w-spirit-level-industrial-use-618354.jpg?v=1735489911 X01RZ-E60 Digital 60 Meter Laser Distance Area Volume Pythagorean w/ Spirit Level Industrial Use X01RZ - E60 Digital 60 Meter Laser Distance Area Volume Pythagorean w/ Spirit Level Industrial Use - Gain Express https://www.gainexpress.com/products/x01rz-e80 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-x01rz-e80-x01rz-e80ii-digital-80m262ft-laser-measuring-tape-distance-meter-range-finder-device-with-backlight-bubble-level-2mm-accuracy-496370.jpg?v=1735489910 X01RZ-E80II Digital 80M/262ft Laser Measuring Tape Distance Meter, Range Finder Device with Backlight & Bubble Level, ±2mm accuracy X01RZ - E80II Digital 80M/262ft Laser Measuring Tape Distance Meter, Range Finder Device with Backlight & Bubble Level, ±2mm accuracy - Gain Express https://www.gainexpress.com/products/cp-old 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/gainexpress-gain-express-refractometer-CP-OLD-preview_522.jpg?v=1565257959 CP-OLD Cover Plate for Traditional Refractometer CP-OLD Cover Plate for Traditional Refractometer - Gain Express https://www.gainexpress.com/products/cp-rhbn90 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-cp-rhbn90-cp-rhbn90-cover-plate-for-new-design-honey-refractometer-979024.jpg?v=1732853740 CP-RHBN90 Cover Plate for New Design Honey Refractometer CP - RHBN90 CP - RHBN90 Cover Plate for New Design Honey Refractometer - Gain Express https://www.gainexpress.com/products/cp-rhsn10 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-cp-rhsn10-cp-rhsn10-cover-plate-for-new-design-refractometer-544466.jpg?v=1735489539 CP-RHSN10 Cover Plate for New Design Refractometer CP - RHSN10 Cover Plate for New Design Refractometer - Gain Express https://www.gainexpress.com/products/m05-001 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-m05-001-m05-001-wifi-usb-microscope-200x-zoom-6-led-ios-android-pc-video-photo-rechargeable-li-ion-battery-443793.jpg?v=1732853972 M05-001 WIFI USB Microscope 200x Zoom 6 LED IOS Android PC Video Photo Rechargeable Li-ion Battery M05 - 001 M05 - 001 WIFI USB Microscope 200x Zoom 6 LED IOS Android PC Video Photo Rechargeable Li - ion Battery - Gain Express https://www.gainexpress.com/products/x01rz-e100 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-x01rz-e100-x01rz-e100-laser-distance-100-meter-area-volume-pythagorean-w-spirit-level-measurer-range-finder-192456.jpg?v=1735489910 X01RZ-E100 Laser Distance 100 Meter Area Volume Pythagorean w/ Spirit Level Measurer Range Finder X01RZ - E100 Laser Distance 100 Meter Area Volume Pythagorean w/ Spirit Level Measurer Range Finder - Gain Express https://www.gainexpress.com/products/x01rz-e40 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-x01rz-e40-x01rz-e40-digital-40m-laser-distance-area-volume-pythagorean-w-spirit-level-range-finder-tool-374489.jpg?v=1735489908 X01RZ-E40 Digital 40M Laser Distance Area Volume Pythagorean w/ Spirit Level Range Finder Tool X01RZ - E40 Digital 40M Laser Distance Area Volume Pythagorean w/ Spirit Level Range Finder Tool - Gain Express https://www.gainexpress.com/products/vid-10 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/VID-10_preview_335.jpg?v=1565059980 VID-10 Industrial 2.31" TFT LCD 8mm Camera Borescope Endoscope 4 LED Lights Vid-10 Industrial 2.31 Tft Lcd 8Mm Camera Borescope Endoscope 4 Led Lights Inspection https://www.gainexpress.com/products/e04-034 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-e04-034-e04-034-handheld-microwave-oven-leakage-monitor-348308.jpg?v=1732853908 E04-034 Handheld Microwave Oven Leakage Monitor E04 - 034 E04 - 034 Handheld Microwave Oven Leakage Monitor - Gain Express https://www.gainexpress.com/products/e04-035 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-e04-035-e04-035-phase-sequence-and-motor-rotation-conveyors-pump-tester-meter-tool-120460vac-196268.jpg?v=1732853792 E04-035 Phase Sequence and Motor Rotation Conveyors Pump Tester Meter Tool 120~460VAC E04 - 035 E04 - 035 Phase Sequence and Motor Rotation Conveyors Pump Tester Meter Tool 120~460VAC - Gain Express https://www.gainexpress.com/products/ce-7200a 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ce-7200a-eu-ce-7200a-stainless-steel-25l-ultrasonic-cleaner-heater-jewelry-watches-dentures-w-timer-110v-or-220v-460116.jpg?v=1732853639 CE-7200A Stainless Steel 2.5L Ultrasonic Cleaner Heater Jewelry Watches Dentures w/ Timer 110V or 220V CE - 7200A_EU CE - 7200A Stainless Steel 2.5L Ultrasonic Cleaner Heater Jewelry Watches Dentures w/ Timer 110V or 220V - Gain Express https://www.gainexpress.com/products/th-8836 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/gain-express-gainexpress-Thermometer-TH-8836-_preview_715.jpg?v=1565085150 TH-8836 Digital IR Non-Contact Thermometer Baby Human Forehead Surface Temperature °C/°F Th-8836 Digital Ir Non-Contact Thermometer Baby Human Forehead Surface Temperature °C/°F https://www.gainexpress.com/products/t05-001 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-t05-001-t05-001-non-destructive-digital-film-coating-thickness-gauge-meter-1800um-magnetic-induction-271091.jpg?v=1735489833 T05-001 Non-Destructive Digital Film / Coating Thickness Gauge Meter 1800um Magnetic Induction T05 - 001 Non - Destructive Digital Film / Coating Thickness Gauge Meter 1800um Magnetic Induction - Gain Express https://www.gainexpress.com/products/dmt-3 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-dmt-3-dmt-3-high-accuracy-professional-diamond-moissanite-tester-gemstone-2pt-jewel-stone-combo-gem-jewelry-test-tool-selection-factory-calibrated--521517.jpg?v=1732853915 DMT-3 High Accuracy Professional Diamond Moissanite Tester Gemstone 2pt Jewel Stone Combo Gem Jewelry Test Tool Selection Factory Calibrated Meter Identifier Device DMT - 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1999mV~1999mV Pool Aquarium - Gain Express https://www.gainexpress.com/products/sns-orp-001 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-sns-orp-001-sns-orp-001-an-extra-orp-electrode-for-2-in-1-orp-temperature-pentype-tester-969981.jpg?v=1732854386 SNS-ORP-001 An Extra ORP Electrode for 2-in-1 ORP & Temperature Pentype Tester SNS - ORP - 001 SNS - ORP - 001 An Extra ORP Electrode for 2 - in - 1 ORP & Temperature Pentype Tester - Gain Express https://www.gainexpress.com/products/ag-82413b 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ag-82413b-ag-82413b-digital-protractor-angle-finder-level-inclinometer-magnetic-v-groove-0360-with-backlight-ip65-529779.jpg?v=1732853633 AG-82413B Digital Protractor Angle Finder Level Inclinometer Magnetic V-Groove 0~360 with Backlight IP65 AG - 82413B AG - 82413B Digital Protractor Angle Finder Level Inclinometer Magnetic V - Groove 0~360 with Backlight IP65 - Gain Express https://www.gainexpress.com/products/orp8552 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-orp8552-orp8552-orp-meter-pen-type-redox-999mv-waterproof-ip65-digital-water-treatment-tester-520397.jpg?v=1735489624 ORP8552 ORP Meter Pen Type Redox 999mV Waterproof IP65 Digital Water Treatment Tester ORP8552 ORP Meter Pen Type Redox 999mV Waterproof IP65 Digital Water Treatment Tester - Gain Express https://www.gainexpress.com/products/ph-001 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/1-gain-express-gainexpress-pH-meter-PH-001-preview_407.jpg?v=1565085350 PH-001 Pen-type PH Meter Digital Water Quality Tester, 0~14pH for Hydroponics Aquarium Pool Wine Cola Urine Water Tank with Clear LCD with Backlight Function, Portable Pocket Size Ph-001 Pen-Type Ph Meter Digital Water Quality Tester 0~14Ph For Hydroponics Aquarium Pool Wine Cola https://www.gainexpress.com/products/orp-002 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-orp-002-orp-002-pen-type-redox-meter-digital-lcd-pool-aquarium-orp-water-quality-tester-with-backlight-499054.jpg?v=1735489646 ORP-002 Pen-type Redox Meter Digital LCD Pool Aquarium ORP Water Quality Tester with Backlight ORP - 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001 - EU_2S DCF RCC Desktop Digital Weather Forecast Station Barometer with 2 Sensors 220V Only - Gain Express https://www.gainexpress.com/products/hrm-003 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/gain_express_gainexpress_heart_rate_monitor_HRM-003_preview_409.jpg?v=1565085202 HRM-003 Sports Watch Heart Rate Monitor Pedometer Exercise Fitness Watches Calorie Counter 30~240bpm Hrm-003 Sports Watch Heart Rate Monitor Pedometer Exercise Fitness Watches Calorie Counter 30~240Bpm https://www.gainexpress.com/products/hrm-004 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/gain_express_gainexpress_heart_rate_monitor_HRM-004_preview_763.jpg?v=1565086053 HRM-004 Heart Rate Monitor 30~240bpm Pedometer Exercise Belt Fat Calorie Counter Digital Sports Fitness Running Hiking Watch Hrm-004 Heart Rate Monitor 30~240Bpm Pedometer Exercise Belt Fat Calorie Counter Digital Sports https://www.gainexpress.com/products/hrm-002 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/gain_express_gainexpress_heart_rate_monitor_HRM-002_preview_237.jpg?v=1565086104 HRM-002 Heart Rate Monitor 40~240bpm Pedometer Calorie Counter Sports Fitness Watch Walk Run Timer Hrm-002 Heart Rate Monitor 40~240Bpm Pedometer Calorie Counter Sports Fitness Watch Walk Run Timer https://www.gainexpress.com/products/vid-71r-5-5-2m 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/gain_express_gainexpress_endoscope_VID-71R-5-5-2M_whole_791.jpg?v=1565059585 VID-71R-5.5-2M 5.5mm Camera 2M Cable Recordable Video Inspection 2.4" HD Endoscope Snakescope Industrial Borescope 4 LED Pipe Car Engine Scopes Vid-71R-5.5-2M 5.5Mm Camera 2M Cable Recordable Video Inspection 2.4 Hd Endoscope Snakescope https://www.gainexpress.com/products/vid-71r_9_3m 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/1-gain-express-gainexpress-endoscope-VID-71R_9_3M-Preview_939.jpg?v=1565061087 VID-71R_9_3M Recordable Video Inspection Industrial Borescope 4 LED Pipe Car 9mm Camera Scopes Vid-71R_9_3M Recordable Video Inspection Industrial Borescope 4 Led Pipe Car 9Mm Camera Scopes https://www.gainexpress.com/products/ws-002-2s 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ws-002-2s-ws-002-2s-wireless-weather-forecast-station-indooroutdoor-temperature-humidity-rh-rcc-dcf-thermometer-2-sensors-moonphase-alarm-187987.jpg?v=1735489907 WS-002-2S Wireless Weather Forecast Station Indoor/Outdoor Temperature Humidity RH RCC DCF Thermometer 2 sensors Moonphase Alarm WS - 002 - 2S Wireless Weather Forecast Station Indoor/Outdoor Temperature Humidity RH RCC DCF Thermometer 2 sensors Moonphase Alarm - Gain Express https://www.gainexpress.com/products/ws-001-1s 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ws-001-1s-ws-001-1s-dcf-rcc-desktop-weather-forecast-station-thermometer-barometer-temperature-monitor-285272.jpg?v=1735489914 WS-001-1S DCF RCC Desktop Weather Forecast Station Thermometer Barometer Temperature Monitor WS - 001 - 1S DCF RCC Desktop Weather Forecast Station Thermometer Barometer Temperature Monitor - Gain Express https://www.gainexpress.com/products/ws-001_eu_3s 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ws-001-eu-3s-ws-001-eu-3s-dcf-rcc-digital-weather-forecast-station-barometer-temperature-monitor-3-sensors-220v-only-882304.jpg?v=1735489914 WS-001_EU_3S DCF RCC Digital Weather Forecast Station Barometer Temperature Monitor 3 Sensors 220V ONLY WS - 001_EU_3S DCF RCC Digital Weather Forecast Station Barometer Temperature Monitor 3 Sensors 220V ONLY - Gain Express https://www.gainexpress.com/products/s08613b_1s 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-s08613b-1s-s08613b-1s-wireless-digital-weather-forecast-station-humidity-indooroutdoor-temperature-rcc-clock-calendar-554533.jpg?v=1735489746 S08613B_1S Wireless Digital Weather Forecast Station Humidity Indoor/Outdoor Temperature RCC Clock Calendar S08613B_1S Wireless Digital Weather Forecast Station Humidity Indoor/Outdoor Temperature RCC Clock Calendar - Gain Express https://www.gainexpress.com/products/ar-111-220v 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ar-111-220v-ar-111-220v-ultrasonic-mosquito-repeller-repellent-electronic-pest-control-885243.jpg?v=1732853783 AR-111-220V Ultrasonic Mosquito Repeller Repellent Electronic Pest Control AR - 111_220V AR - 111 - 220V Ultrasonic Mosquito Repeller Repellent Electronic Pest Control - Gain Express https://www.gainexpress.com/products/ar-131_eu 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/gainexpress-gain-express-mosquito-pest-repeller-AR-131B-preview_54f1c59c-a771-43c4-8bc0-59bbb3bf28b8.jpg?v=1636021192 AR-131_EU Ultrasonic Plug-in Pest Control Repeller Electronic Insects Repellent, Pet Kids Safe, Mosquito Cockroach Spider Bugs etc AR-131_EU Ultrasonic Plug-in Pest Control Repeller Electronic Insects Repellent, Pet Kids Safe, Mosquito Cockroach Spider Bugs etc - Gain Express https://www.gainexpress.com/products/ar-166 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/ar-166-2-in-1-electronic-ultrasonic-repeller-anti-mouse-mosquito-50-60hz-rats-control-plug-non-toxic-repellent-pet-kids-safe-pest-140.jpg?v=1755836401 AR-166 2-in-1 Electronic Ultrasonic Repeller Anti Mouse & Mosquito 50/ 60Hz, Rats Control, Plug-in Non-Toxic Repellent, Pet & Kids Safe AR 166 2 in 1 Electronic Ultrasonic Repeller Anti Mouse & Mosquito 50/ 60Hz Rats Control Plug in Non Toxic Repellent https://www.gainexpress.com/products/ck-109_yellow 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ck-109-yellow-ck-109-yellow-5in1-distance-meter-stud-metal-live-wire-detector-laser-marker-818899.jpg?v=1732853906 CK-109_yellow 5in1 Distance Meter Stud Metal Live Wire Detector & Laser Marker CK - 109_yellow CK - 109_yellow 5in1 Distance Meter Stud Metal Live Wire Detector & Laser Marker - Gain Express https://www.gainexpress.com/products/foc-c003 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-foc-c003-foc-c003-fiber-optic-connector-cleaner-kit-500-wipes-cassette-cleaning-system-for-optical-fiber-inspection-tool-253537.jpg?v=1732853787 FOC-C003 Fiber Optic Connector Cleaner Kit 500 Wipes Cassette Cleaning System for Optical Fiber Inspection Tool FOC - C003 FOC - C003 Fiber Optic Connector Cleaner Kit 500 Wipes Cassette Cleaning System for Optical Fiber Inspection Tool - Gain Express https://www.gainexpress.com/products/foc-refill 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-foc-refill-foc-refill-replacement-reel-for-fiber-optic-cleaner-500-wipes-731919.jpg?v=1732853900 FOC-REFILL Replacement reel for Fiber Optic Cleaner 500 wipes FOC - REFILL FOC - REFILL Replacement reel for Fiber Optic Cleaner 500 wipes - Gain Express https://www.gainexpress.com/products/e04-037 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-e04-037-e04-037-digital-multimeter-frequency-tester-resistance-pen-style-automotive-car-voltage-dcac-tester-250467.jpg?v=1732853797 E04-037 Digital Multimeter Frequency Tester Resistance Pen Style Automotive Car Voltage DC/AC Tester E04 - 037 E04 - 037 Digital Multimeter Frequency Tester Resistance Pen Style Automotive Car Voltage DC/AC Tester - Gain Express https://www.gainexpress.com/products/7755 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-7755-7755-digital-co2-carbon-dioxide-temperature-rh-humidity-dp-wb-ndir-sensor-indoor-air-quality-9999ppm-usb-monitor-logger-860191.jpg?v=1735489254 7755 Digital CO2 Carbon Dioxide Temperature RH Humidity DP WB NDIR Sensor Indoor Air Quality 9999ppm USB Monitor Logger 7755 Digital CO2 Carbon Dioxide Temperature RH Humidity DP WB NDIR Sensor Indoor Air Quality 9999ppm USB Monitor Logger - Gain Express https://www.gainexpress.com/products/oz-004 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-oz-004-oz-004-enaly-500mghr-o3-ozone-generator-with-air-dryer-timer-adjustable-output-air-quality-purifier-clean-food-sterilization-220v-only-560620.jpg?v=1732854234 OZ-004 Enaly 500mG/hr O3 Ozone Generator with Air Dryer/ Timer/ Adjustable Output, Air Quality Purifier Clean Food Sterilization 220V ONLY OZ - 004 OZ - 004 Enaly 500mG/hr O3 Ozone Generator with Air Dryer/ Timer/ Adjustable Output, Air Quality Purifier Clean Food Sterilization 220V ONLY - Gain Express https://www.gainexpress.com/products/ph869-2 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ph869-2-ph869-2-pen-type-12cm-probe-ph-temperature-digital-meter-1400-ph-pool-aquarium-water-quality-tester-792498.jpg?v=1732854122 PH869-2 Pen type 12cm Probe pH Temperature Digital Meter 14.00 pH Pool Aquarium Water Quality Tester PH869 - 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039_FBA E04 - 039 Automotive Fuel Injection Pump Injector Tester 12V Car Vehicle Diagnostic Tool 4 Modes - Gain Express https://www.gainexpress.com/products/am-m010 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-am-m010-am-m010-weather-flow-pocket-size-anemometer-for-smartphone-ios-iphone-ipad-2-89-mph-volume-velocity-air-flow-wind-speed-meter-for-drone-fly-782174.jpg?v=1732853876 AM-M010 Weather Flow Pocket-size Anemometer for Smartphone iOS iPhone iPad, 2-89 mph Volume, Velocity, Air Flow & Wind Speed Meter for Drone Flying, Sailing, Ventilation System Airflow Measurement AM - M010 AM - M010 Weather Flow Pocket - size Anemometer for Smartphone iOS iPhone iPad, 2 - 89 mph Volume, Velocity, Air Flow & Wind Speed Meter for Drone Flying, Sailing, Ventilation System Airflow Measurement - Gain Express https://www.gainexpress.com/products/e04-011_us 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-e04-011-us-e04-011-us-automatic-circuit-breaker-finder-tracer-ac-circuits-fuses-for-100-120v-only-led-signal-receiver-transmitter-fuse-socket-plugs-622825.jpg?v=1732853789 E04-011_US Automatic Circuit Breaker Finder Tracer AC circuits / Fuses for 100-120V ONLY, LED Signal Receiver Transmitter Fuse Socket ,Plugs, Lighting, Lamp Socket & Outlet Adapters 110V E04 - 011_US E04 - 011_US Automatic Circuit Breaker Finder Tracer AC circuits / Fuses for 100 - 120V ONLY, LED Signal Receiver Transmitter Fuse Socket ,Plugs, Lighting, Lamp Socket & Outlet Adapters 110V - Gain Express https://www.gainexpress.com/products/835-1 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-835-1-835-1-digital-waterproof-ec-conductivity-temperature-meter-tester-pen-type-dual-display-water-quality-thermometer-ip65-282406.jpg?v=1735489274 835-1 Digital Waterproof EC Conductivity Temperature Meter Tester Pen-type, Dual Display Water Quality, Thermometer, IP65 835 - 1 Digital Waterproof EC Conductivity Temperature Meter Tester Pen - type, Dual Display Water Quality, Thermometer, IP65 - Gain Express https://www.gainexpress.com/products/e04-040 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-e04-040-e04-040-ultrasonic-leak-detector-pressure-air-water-dust-leakage-locator-711140.jpg?v=1732853752 E04-040 Ultrasonic Leak Detector Pressure Air Water Dust Leakage Locator E04 - 040 E04 - 040 Ultrasonic Leak Detector Pressure Air Water Dust Leakage Locator - Gain Express https://www.gainexpress.com/products/hch-22 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-hch-22-hch-22-formaldehyde-hcho-air-monitor-temperature-humidity-meter-gas-detector-270912.jpg?v=1732854160 HCH-22 Formaldehyde HCHO Air Monitor Temperature Humidity Meter Gas Detector HCH - 22 HCH - 22 Formaldehyde HCHO Air Monitor Temperature Humidity Meter Gas Detector - Gain Express https://www.gainexpress.com/products/ws-103_2s 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/ws-103-2s-weather-station-2-wireless-sensors-wwvb-dcf-radio-controlled-clock-thermometer-alarm-indoor-outdoor-humidity-temperature-forecast-barometer-sunrise-161.jpg?v=1754986275 WS-103_2S Weather Station 2 Wireless Sensors, WWVB DCF Radio Controlled Clock Thermometer Alarm, Indoor Outdoor Humidity Temperature Weather Forecast Barometer, Sunrise Sunset Moon Phase WS - 103_2S Weather Station 2 Wireless Sensors, WWVB DCF Radio Controlled Clock Thermometer Alarm, Indoor Outdoor Humidity Temperature Weather Forecast Barometer, Sunrise Sunset Moon Phase - Gain Express https://www.gainexpress.com/products/ws-103_3s 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/ws-103-3s-weather-station-3-wireless-sensors-wwvb-radio-controlled-clock-thermometer-alarm-indoor-outdoor-humidity-temperature-forecast-barometer-sunrise-165.jpg?v=1754986320 WS-103_3S Weather Station 3 Wireless Sensors, WWVB Radio Controlled Clock Thermometer Alarm, Indoor Outdoor Humidity Temperature Weather Forecast Barometer, Sunrise Sunset Moon Phase WS - 103_3S Weather Station 3 Wireless Sensors, WWVB Radio Controlled Clock Thermometer Alarm, Indoor Outdoor Humidity Temperature Weather Forecast Barometer, Sunrise Sunset Moon Phase - Gain Express https://www.gainexpress.com/products/ws-104_eu_2s 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ws-104-eu-2s-ws-104-eu-2s-wireless-weather-station-temperature-humidity-rcc-dcf-2-remote-sensors-indoor-outdoor-111569.jpg?v=1735489922 WS-104_EU_2S Wireless Weather Station Temperature Humidity RCC DCF 2 Remote Sensors Indoor Outdoor WS - 104_EU_2S Wireless Weather Station Temperature Humidity RCC DCF 2 Remote Sensors Indoor Outdoor - Gain Express https://www.gainexpress.com/products/ws-104_us_3s 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ws-104-us-3s-ws-104-us-3s-weather-station-inout-temperature-humidity-wwvb-3-wireless-remote-sensors-110v-only-970261.jpg?v=1735489925 WS-104_US_3S Weather Station IN/OUT Temperature Humidity WWVB 3 Wireless Remote Sensors 110V Only WS - 104_US_3S Weather Station IN/OUT Temperature Humidity WWVB 3 Wireless Remote Sensors 110V Only - Gain Express https://www.gainexpress.com/products/ws-104_eu_3s 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ws-104-eu-3s-ws-104-eu-3s-weather-station-indoor-outdoor-temperature-humidity-rcc-dcf-3-wireless-remote-sensors-964874.jpg?v=1735489916 WS-104_EU_3S Weather Station Indoor Outdoor Temperature Humidity RCC DCF 3 Wireless Remote Sensors WS - 104_EU_3S Weather Station Indoor Outdoor Temperature Humidity RCC DCF 3 Wireless Remote Sensors - Gain Express https://www.gainexpress.com/products/voc-21 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-voc-21-voc-21-voc-monitor-tester-indoor-air-quality-iaq-meter-detector-050ppm-temperature-humidity-air-contaminants-measure-tester-for-home-type-in-514219.jpg?v=1735489891 VOC-21 VOC Monitor Tester Indoor Air Quality IAQ Meter Detector 0~50ppm- Temperature, Humidity, Air Contaminants Measure Tester for Home Type Indoor Offices Bedrooms VOC - 21 VOC Monitor Tester Indoor Air Quality IAQ Meter Detector 0~50ppm - Temperature, Humidity, Air Contaminants Measure Tester for Home Type Indoor Offices Bedrooms - Gain Express https://www.gainexpress.com/products/ff-718lic-w 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ff-718lic-w-ff-718lic-w-lucky-rechargeable-colored-lcd-fish-finder-locator-detector-with-100m-328ft-wireless-sonar-sensor-45m-145ft-depth-coverage--292463.jpg?v=1732854125 FF-718LIC-W Lucky Rechargeable Colored LCD Fish Finder Locator Detector with 100m (328ft) Wireless Sonar Sensor & 45M (145ft) Depth Coverage, Fish & Depth Alarm, Water Temperature °C or °F. Waterproof Main Unit & Sensor FF - 718LIC - W FF - 718LIC - W Lucky Rechargeable Colored LCD Fish Finder Locator Detector with 100m (328ft) Wireless Sonar Sensor & 45M (145ft) Depth Coverage, Fish & Depth Alarm, Water Temperature °C or °F. Waterproof Main Unit & Sensor - Gain Express https://www.gainexpress.com/products/sns-nts200-10m 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/gainexpress-gain-express-10-Meters-Cable-for-N04NTS-200-preview_882.jpg?v=1565257868 10 Meters Cable for N04NTS-200 Endoscope Borescope Inspection Camera 10 Meters Cable for N04NTS-200 Endoscope Borescope Inspection Camera - Gain Express https://www.gainexpress.com/products/clmg-7205 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/CLMG-7205-preview.jpg?v=1774263941 CLMG-7205 Pocket Diffraction Grating Gemological Spectroscope Gem Stone Jeweller Tool with Pouch https://www.gainexpress.com/products/end-23_8-2mm_1m 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/gain-express-gainexpress-Endoscope-END-23_8.2_1M-preview_484.jpg?v=1565060863 END-23_8.2mm_1M Waterproof Endoscope Digital Inspection Camera Borescope 8.2mm Camera 2.7 inch Screen Monitor and 1 Meter Cable, Handheld Digital End-23_8.2Mm_1M Waterproof Endoscope Digital Inspection Camera Borescope 8.2Mm 2.7 Inch Screen https://www.gainexpress.com/products/end-23_8-2mm_3m 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/gain-express-gainexpress-Endoscope-END-23_8.2_3M-preview_666.jpg?v=1565060817 END-23_8.2mm_3M Waterproof Endoscope Digital Inspection Camera Borescope 8.2mm Camera 2.7 inch Screen Monitor and 3 Meter Cable, Handheld Digital End-23_8.2Mm_3M Waterproof Endoscope Digital Inspection Camera Borescope 8.2Mm 2.7 Inch Screen https://www.gainexpress.com/products/end-23_8-2mm_5m 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/gain-express-gainexpress-Endoscope-END-23_8.2_5M-preview_846.jpg?v=1565060812 END-23_8.2mm_5M Waterproof Endoscope Digital Inspection Camera Borescope 8.2mm Camera 2.7 inch Screen Monitor and 5 Meter Cable, Handheld Digital End-23_8.2Mm_5M Waterproof Endoscope Digital Inspection Camera Borescope 8.2Mm 2.7 Inch Screen https://www.gainexpress.com/products/slm-25 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-slm-25-slm-25-sound-level-meter-with-backlit-display-high-accuracy-measuring-30db130db-with-data-logging-function-instrument-compact-professional-233481.jpg?v=1735489746 SLM-25 Sound Level Meter with Backlit Display High Accuracy Measuring 30dB~130dB with Data Logging Function Instrument Compact Professional SLM - 25 Sound Level Meter with Backlit Display High Accuracy Measuring 30dB~130dB with Data Logging Function Instrument Compact Professional - Gain Express https://www.gainexpress.com/products/the-26 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-the-26-the-26-digital-thermometer-dual-type-k-thermocouples-probe-temperature-instrument-large-display-with-backlight-924751.jpg?v=1735489848 THE-26 Digital Thermometer Dual Type-K Thermocouples Probe Temperature Instrument Large Display with Backlight THE - 26 Digital Thermometer Dual Type - K Thermocouples Probe Temperature Instrument Large Display with Backlight - Gain Express https://www.gainexpress.com/products/the-27 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-the-27-the-27-digital-thermometer-4-channel-k-type-thermocouples-with-k-type-metal-bead-probe-thermometer-backlight-temperature-instrument-50-1350--488442.jpg?v=1735489820 THE-27 Digital Thermometer 4 Channel K-Type Thermocouples with K-Type Metal & Bead Probe , Thermometer , Backlight , Temperature Instrument , -50 ~ 1350 °C (-58 ~ 2462 °F) THE - 27 Digital Thermometer 4 Channel K - Type Thermocouples with K - Type Metal & Bead Probe , Thermometer , Backlight , Temperature Instrument , - 50 ~ 1350 °C ( - 58 ~ 2462 °F) - Gain Express https://www.gainexpress.com/products/lux-29 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-lux-29-lux-29-digital-light-lux-meter-with-data-logging-measurement-range-0-to-200000-lux-auto-ranging-instrument-879773.jpg?v=1732854125 LUX-29 Digital Light Lux Meter with Data Logging Measurement Range 0 to 200,000 Lux Auto Ranging Instrument LUX - 29 LUX - 29 Digital Light Lux Meter with Data Logging Measurement Range 0 to 200,000 Lux Auto Ranging Instrument - Gain Express https://www.gainexpress.com/products/lux-28 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-lux-28-lux-28-digital-light-lux-meter-instrument-measurement-range-0-to-200000-lux-portable-auto-ranging-tool-141945.jpg?v=1732853970 LUX-28 Digital Light Lux Meter Instrument Measurement Range 0 to 200,000 Lux Portable Auto Ranging Tool LUX - 28 LUX - 28 Digital Light Lux Meter Instrument Measurement Range 0 to 200,000 Lux Portable Auto Ranging Tool - Gain Express https://www.gainexpress.com/products/slm-30 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-slm-30-slm-30-professional-digital-sound-level-meter-30130dba-a-weighting-decibel-noise-tester-lcd-display-with-backlight-high-accuracy-15db-max-mi-763897.jpg?v=1735489728 SLM-30 Professional Digital Sound Level Meter, 30~130dBA, A weighting, Decibel Noise Tester, LCD display with Backlight, High Accuracy ±1.5dB, MAX/ MIN/ HOLD Mode, for Noise Volume Measuring, Monitoring SLM - 30 Professional Digital Sound Level Meter, 30~130dBA, A weighting, Decibel Noise Tester, LCD display with Backlight, High Accuracy ±1.5dB, MAX/ MIN/ HOLD Mode, for Noise Volume Measuring, Monitoring - Gain Express https://www.gainexpress.com/products/lux-31 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-lux-31-lux-31-digital-light-mini-lux-meter-measurement-range-0-200000-lux-0-18500-fc-portable-instrument-auto-range-768545.jpg?v=1735489636 LUX-31 Digital Light Mini Lux Meter Measurement Range 0 ~ 200,000 LUX / 0 ~ 18,500 FC, Portable Instrument, Auto Range LUX - 31 Digital Light Mini Lux Meter Measurement Range 0 ~ 200,000 LUX / 0 ~ 18,500 FC, Portable Instrument, Auto Range - Gain Express https://www.gainexpress.com/products/the-32 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-the-32-the-32-digital-k-j-t-e-r-s-n-type-thermocouple-thermometer-dual-channel-lcd-display-15017670c-238321260f-atc-temperature-meter-925292.jpg?v=1735489867 THE-32 Digital K / J / T / E / R / S / N Type Thermocouple Thermometer Dual-channel LCD Display -150~1767°C (-238~3212.6°F) ATC Temperature Meter THE - 32 Digital K / J / T / E / R / S / N Type Thermocouple Thermometer Dual - channel LCD Display - 150~1767°C ( - 238~3212.6°F) ATC Temperature Meter - Gain Express https://www.gainexpress.com/products/the-33 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/1-gainexpress-gain-express-thermometer-THE-33-preview_697.jpg?v=1565088243 THE-33 Non- Contact Infrared (IR) Laser Thermometer Temperature Range -50~550°C (-58~1022°F) , Industrial Cooking Gun Type Tester The-33 Non- Contact Infrared (Ir) Laser Thermometer Temperature Range -50~550°C (-58~1022°F) https://www.gainexpress.com/products/the-34 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-the-34-the-34-507500c-5813820f-non-contact-digital-ir-infrared-laser-thermometer-121-ds-pyrometer-933889.jpg?v=1735489863 THE-34 -50~750°C/ -58~1382°F Non Contact Digital IR Infrared Laser Thermometer 12:1 DS Pyrometer THE - 34 - 50~750°C/ - 58~1382°F Non Contact Digital IR Infrared Laser Thermometer 12:1 DS Pyrometer - Gain Express https://www.gainexpress.com/products/the-35 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-the-35-the-35-infrared-ir-laser-121-non-contact-509500c-5817420f-digital-thermometer-industrial-chemicals-machinery-cooking-household-used-419590.jpg?v=1735489886 THE-35 Infrared IR Laser 12:1 Non-Contact -50~950°C / -58~1742°F Digital Thermometer, Industrial Chemicals Machinery Cooking Household Used THE - 35 Infrared IR Laser 12:1 Non - Contact - 50~950°C / - 58~1742°F Digital Thermometer, Industrial Chemicals Machinery Cooking Household Used - Gain Express https://www.gainexpress.com/products/lkd-36 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-lkd-36-lkd-36-portable-combustible-gas-leak-detector-50ppm-with-built-in-sensor-propane-butane-methane-natural-gas-adjustable-sound-light-alarm-tes-343221.jpg?v=1732853970 LKD-36 Portable Combustible Gas Leak Detector 50ppm with Built-in Sensor , Propane Butane Methane Natural Gas, Adjustable Sound Light Alarm Tester LKD - 36 LKD - 36 Portable Combustible Gas Leak Detector 50ppm with Built - in Sensor , Propane Butane Methane Natural Gas, Adjustable Sound Light Alarm Tester - Gain Express https://www.gainexpress.com/products/pd_58 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-pd-58-instrument-cctv-tester-cctv-cable-tester-security-camera-tester-20-inch-tft-lcd-238550.jpg?v=1735489597 Instrument CCTV Tester CCTV Cable Tester Security Camera Tester 2.0 inch TFT LCD Instrument CCTV Tester CCTV Cable Tester Security Camera Tester 2.0 inch TFT LCD - Gain Express https://www.gainexpress.com/products/man-37 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-man-37-man-37-digital-manometer-with-usb-interface-differential-pressure-gauge-air-pressure-testing-instrument-tester-11-measurement-units-775735.jpg?v=1732853972 MAN-37 Digital Manometer with USB Interface, Differential Pressure Gauge, Air Pressure Testing Instrument Tester, 11 Measurement Units MAN - 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918N2 FF - 918N2 LUCKY 2 - in - 1 Fish Finder 100m (Wired) / 45m (Wireless) Depth Sounder Sensor Transducer Fishfinder Fishing Detector Monitor - Gain Express https://www.gainexpress.com/products/ff-918_cwls 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ff-918-cwls-ff-918-cwls-lucky-color-display-boat-fish-finder-wireless-remote-control-300m-980ft-fishing-wireless-operating-range-100m-depth-range-w-840330.jpg?v=1732854161 FF-918_CWLS LUCKY Color Display Boat Fish Finder Wireless Remote Control 300m/ 980ft Fishing Wireless Operating Range, 100m Depth Range, With Zoom Function, Shallow & Fish Alarm, Salt & Fresh Water, Ocean, Sea, River, Lake, Icy Water FF - 918_CWLS FF - 918_CWLS LUCKY Color Display Boat Fish Finder Wireless Remote Control 300m/ 980ft Fishing Wireless Operating Range, 100m Depth Range, With Zoom Function, Shallow & Fish Alarm, Salt & Fresh Water, Ocean, Sea, River, Lake, Icy Water - Gain Express https://www.gainexpress.com/products/ff-916_ext 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/1-gain-express-gainexpress-Fish-Finder-FF-916_EXT-Preview_766.jpg?v=1642673243 FF-916_EXT LUCKY Portable Wireless WIFI Fish Finder For Android & iOS 45M Depth & 70M WIFI Range, With 50M WIFI Extender, Rechargeable Battery, Smart Fish Detector with Free Neoprene Bag, for Boats, Rig, Ocean, River, Kayak for Fresh and Salt Water Ff-916_Ext Lucky Portable Wireless Wifi Fish Finder For Android & Ios 45M Depth 70M Range With 50M https://www.gainexpress.com/products/ff-718lic 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ff-718lic-ff-718lic-2-in-1-lucky-fishfinder-wirelesswired-sensor-englishrussian-menu-328ft100m-waterproof-monitor-rechargeable-battery-310812.jpg?v=1732853912 FF-718LIC 2-in-1 LUCKY Fishfinder Wireless/Wired Sensor English/Russian Menu 328ft/100m Waterproof Monitor Rechargeable Battery FF - 718LIC FF - 718LIC 2 - in - 1 LUCKY Fishfinder Wireless/Wired Sensor English/Russian Menu 328ft/100m Waterproof Monitor Rechargeable Battery - Gain Express https://www.gainexpress.com/products/agf-202 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-agf-202-agf-202-digital-angle-finder-inclinometer-ip67-with-magnetic-v-groove-base-589548.jpg?v=1732853636 AGF-202 Digital Angle Finder Inclinometer IP67 with Magnetic V-Groove Base AGF - 202 AGF - 202 Digital Angle Finder Inclinometer IP67 with Magnetic V - Groove Base - Gain Express https://www.gainexpress.com/products/agf-201 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-agf-201-agf-201-digital-protractor-angle-gauge-finder-bevel-box-inclinometer-level-meter-magnetic-base-783227.jpg?v=1735489241 AGF-201 Digital Protractor Angle Gauge Finder Bevel Box Inclinometer Level Meter Magnetic Base AGF - 201 Digital Protractor Angle Gauge Finder Bevel Box Inclinometer Level Meter Magnetic Base - Gain Express https://www.gainexpress.com/products/dmvc-500 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-dmvc-500-dmvc-500-usb-portable-digital-microscope-10x-200x-magnification-8-led-handheld-video-recording-with-stand-photo-high-resolution-582544.jpg?v=1732853752 DMVC-500 USB Portable Digital Microscope 10x - 200x Magnification 8 LED, Handheld Video Recording with Stand, Photo, High Resolution DMVC - 500 DMVC - 500 USB Portable Digital Microscope 10x - 200x Magnification 8 LED, Handheld Video Recording with Stand, Photo, High Resolution - Gain Express https://www.gainexpress.com/products/e04-036 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-e04-036-e04-036-automotive-car-repair-diagnostic-tool-cable-circuit-wire-tracker-short-open-finder-tester-checker-device-408789.jpg?v=1732854130 E04-036 Automotive Car Repair Diagnostic Tool Cable Circuit Wire Tracker Short Open Finder Tester Checker Device E04 - 036 E04 - 036 Automotive Car Repair Diagnostic Tool Cable Circuit Wire Tracker Short Open Finder Tester Checker Device - Gain Express https://www.gainexpress.com/products/tmg-4001 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-tmg-4001-tmg-4001-ultrasonic-metal-steel-aluminum-glass-fiber-thickness-velocity-gauge-meter-tester-with-backlight-internal-memory-100000-lcd-529818.jpg?v=1735489879 TMG-4001 Ultrasonic Metal Steel Aluminum Glass Fiber Thickness Velocity Gauge Meter Tester with Backlight Internal Memory 100000 LCD TMG - 4001 Ultrasonic Metal Steel Aluminum Glass Fiber Thickness Velocity Gauge Meter Tester with Backlight Internal Memory 100000 LCD - Gain Express https://www.gainexpress.com/products/tmg-4002 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-tmg-4002-tmg-4002-ultrasonic-metal-steel-aluminum-thickness-gauge-meter-tester-with-usb-port-internal-memory-100000-data-lcd-auto-probe-zero-calibr-716348.jpg?v=1735489881 TMG-4002 Ultrasonic Metal Steel Aluminum Thickness Gauge Meter Tester with USB Port Internal Memory 100,000 Data LCD Auto Probe Zero Calibration TMG - 4002 Ultrasonic Metal Steel Aluminum Thickness Gauge Meter Tester with USB Port Internal Memory 100,000 Data LCD Auto Probe Zero Calibration - Gain Express https://www.gainexpress.com/products/mh600 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-mh600-mh600-mitech-mh600-170960-hld-chinese-english-portable-6-impact-devices-ip65-metal-leeb-hardness-tester-meter-gauge-all-metallic-material-wit-170985.jpg?v=1732854162 MH600 Mitech MH600 170～960 HLD Chinese-English Portable 6 impact devices IP65 Metal Leeb Hardness Tester Meter Gauge All Metallic Material with Carrying Case MH600 MH600 Mitech MH600 170～960 HLD Chinese - English Portable 6 impact devices IP65 Metal Leeb Hardness Tester Meter Gauge All Metallic Material with Carrying Case - Gain Express https://www.gainexpress.com/products/mh180 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/MH180-preview.jpg?v=1741342879 MH180 Mitech MH180 Portable Handheld Leeb Hardness Tester Meter Gauge 170～960 HLD with 100 Group Data Memory LCD EL background light Support Micro printer https://www.gainexpress.com/products/mh310 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-mh310-mh310-portable-leeb-hardness-tester-meter-guage-170960-hld-steel-cast-iron-lcd-el-back-light-with-integrated-high-speed-thermal-printer-715412.jpg?v=1732854121 MH310 Portable Leeb Hardness Tester Meter Guage 170～960 HLD Steel Cast Iron LCD EL back-light with integrated high speed thermal printer MH310 MH310 Portable Leeb Hardness Tester Meter Guage 170～960 HLD Steel Cast Iron LCD EL back - light with integrated high speed thermal printer - Gain Express https://www.gainexpress.com/products/mh320 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-mh320-mh320-portable-leeb-hardness-tester-meter-guage-170960-hld-dot-matrix-lcd-with-integrated-high-speed-thermal-printer-and-alarm-function-123034.jpg?v=1732853976 MH320 Portable Leeb Hardness Tester Meter Guage 170～960 HLD Dot Matrix LCD with integrated high speed thermal printer and alarm function MH320 MH320 Portable Leeb Hardness Tester Meter Guage 170～960 HLD Dot Matrix LCD with integrated high speed thermal printer and alarm function - Gain Express https://www.gainexpress.com/products/mt150 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-mt150-mt150-portable-digital-ultrasonic-thickness-gauge-075-300mm-45-digits-lcd-display-with-el-backlight-auto-power-off-01mm-resolution-798049.jpg?v=1735489610 MT150 Portable Digital Ultrasonic Thickness Gauge 0.75 ~ 300mm 4.5 digits LCD display with EL backlight Auto Power Off 0.1mm Resolution MT150 Portable Digital Ultrasonic Thickness Gauge 0.75 ~ 300mm 4.5 digits LCD display with EL backlight Auto Power Off 0.1mm Resolution - Gain Express https://www.gainexpress.com/products/mt160 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-mt160-mt160-digital-ultrasonic-metal-fiber-glass-thickness-gauge-075-300mm-with-usb-communication-port-lcd-with-el-backlight-internal-memory-data-801662.jpg?v=1735489630 MT160 Digital Ultrasonic Metal Fiber Glass Thickness Gauge 0.75 ~ 300mm with USB Communication Port LCD with EL backlight Internal Memory Data MT160 Digital Ultrasonic Metal Fiber Glass Thickness Gauge 0.75 ~ 300mm with USB Communication Port LCD with EL backlight Internal Memory Data - Gain Express https://www.gainexpress.com/products/srt-6223 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-srt-6223-srt-6223-digital-surface-profile-gauge-roughness-tester-meter-w-0800-mm-measuring-range-403222.jpg?v=1735489858 SRT-6223 Digital Surface Profile Gauge Roughness Tester Meter w/ 0~800 μm Measuring Range SRT - 6223 Digital Surface Profile Gauge Roughness Tester Meter w/ 0~800 μm Measuring Range - Gain Express https://www.gainexpress.com/products/m0198158_fb 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/M0198158_preview_8fdd1d31-9299-4dfa-835f-bc0b40eec815.jpg?v=1564767053 M0198158 Wall mount Smart LED Display CO2, VOC, Temperature & RH Monitor Made in Taiwan (FB) M0198158 Wall Mount Smart Led Display Co2 Voc Temperature & Rh Monitor Made In Taiwan (Fb) Co2/co https://www.gainexpress.com/products/m0198585_fb 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-m0198585-m0198585-wallmountdesktop-temperature-humidity-data-logger-monitor-with-cd-software-and-usb-cable-457167.jpg?v=1732853969 M0198585 Wallmount/Desktop Temperature Humidity Data Logger Monitor with CD Software and USB Cable M0198585 M0198585 Wallmount/Desktop Temperature Humidity Data Logger Monitor with CD Software and USB Cable - Gain Express https://www.gainexpress.com/products/sns-dlg88395_fb 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/SNS-DLG88395_79d03080-6032-4a4a-aaa1-d19e0d05349c.jpg?v=1564767211 SNS-DLG88395 Optional External Temperature Probe for DLG-88395 (FB) Sns-Dlg88395 Optional External Temperature Probe For Dlg-88395 (Fb) https://www.gainexpress.com/products/dis-62 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-dis-62-dis-62-digital-laser-distance-meter-100m328ft-handheld-range-finder-area-volume-measuring-tools-meter-tester-with-backlight-and-spirit-bubbl-925897.jpg?v=1732853668 DIS-62 Digital Laser Distance Meter 100m(328ft) Handheld Range Finder Area & Volume Measuring Tools Meter Tester with Backlight and Spirit Bubble Level, ±1mm accuracy DIS - 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203 Chlorine Tester, PH & Chlorine Cl2 Level Meter Tester Test Monitor Swimming Pool Spa Water monitor Quality Analysis - Gain Express https://www.gainexpress.com/products/82152 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-82152-82152-digital-differential-air-pressure-manometer-15000psi-gauge-high-accuracy-portable-meter-hvac-test-tool-170932.jpg?v=1735489247 82152 Digital Differential Air Pressure Manometer 15.000psi Gauge High Accuracy Portable Meter HVAC Test Tool 82152 Digital Differential Air Pressure Manometer 15.000psi Gauge High Accuracy Portable Meter HVAC Test Tool - Gain Express https://www.gainexpress.com/products/77535 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-77535-77535-co2-0-9999ppm-temperature-dp-wb-rh-humidity-iaq-air-quality-meter-tester-monitor-carbon-dioxide-detectors-analyzer-dew-point-wet-bulb-u-677403.jpg?v=1735489253 77535 CO2 0-9999ppm Temperature DP WB RH Humidity IAQ Air Quality Meter Tester Monitor carbon dioxide detectors analyzer Dew Point Wet Bulb USB datalogger 77535 CO2 0 - 9999ppm Temperature DP WB RH Humidity IAQ Air Quality Meter Tester Monitor carbon dioxide detectors analyzer Dew Point Wet Bulb USB datalogger - Gain Express https://www.gainexpress.com/products/pht-026 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-pht-026-pht-026-6-in-1-multi-function-meter-tester-ec-cf-tds-ph-0c-0f-169426.jpg?v=1732854162 PHT-026 6-in-1 Multi-Function Meter Tester EC CF TDS PH °C °F PHT - 026 PHT - 026 6 - in - 1 Multi - Function Meter Tester EC CF TDS PH °C °F - Gain Express https://www.gainexpress.com/products/ag-200d 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/ag-200d-digital-2-in-1-angle-finder-meter-protractor-ruler-360-400mm-measure-ce-marking-lcd-display-finders-175.jpg?v=1754986460 AG-200D Digital 2-in-1 Angle Finder Meter Protractor Ruler 360° 400mm Measure CE Marking LCD Display AG - 200D AG - 200D Digital 2 - in - 1 Angle Finder Meter Protractor Ruler 360° 400mm Measure CE Marking LCD Display - Gain Express https://www.gainexpress.com/products/ff-718liw_ru_fb 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/1-gain-express-gainexpress-Fish-Finder-FF-718LiW-RU-preview-FB_23d5cc6e-e52e-4754-bc3f-c0582bb31b59.jpg?v=1564768693 FF-718LiW_RU Rechargeable Wireless Fish Finder 40M Depth&180M Wireless Operational Range Russian Ver Ff-718Liw_Ru Rechargeable Wireless Fish Finder 40M Depth&180M Operational Range Russian Ver https://www.gainexpress.com/products/ff-1108-1_fb 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/1-gain-express-gainexpress-Fish-Finder-F-1108-1-preview-FB_4cee13b2-e6b1-4a92-b960-f4497234b1cb.jpg?v=1564768777 FF-1108-1 Lucky Wired Fish Finder with 100M Depth Range and 7.5m Cable Sonar Transducer (FB) Ff-1108-1 Lucky Wired Fish Finder With 100M Depth Range And 7.5M Cable Sonar Transducer (Fb) https://www.gainexpress.com/products/ff-518ru_fb 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/1-gain-express-gainexpress-Fish-Finder-FF-518RU-preview-FB_847.jpg?v=1565231876 FF-518RU Lucky Russian Version Watch Type Wireless Fish Finder with 60m (200ft) Operational Range Ff-518Ru Lucky Russian Version Watch Type Wireless Fish Finder With 60M (200Ft) Operational Range https://www.gainexpress.com/products/ff-1108-1cw_fb 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/1-gain-express-gainexpress-Fish-Finder-FF1108-1CW-preview-FB_d44e6d22-2bda-42b6-a1f0-8996a2bed9a3.jpg?v=1564769024 FF-1108-1CW Lucky Rechargeable Fish Finder 2~147ft with Colored LCD and Wireless Sensor (FB) Ff-1108-1Cw Lucky Rechargeable Fish Finder 2~147Ft With Colored Lcd And Wireless Sensor (Fb) https://www.gainexpress.com/products/tm-192d 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-tm-192d-tm-192d-digital-mini-triple-axis-2000hz-emf-elf-magnetic-field-meter-gauss-meter-2000mg-datalogger-with-usb-pc-software-electromagnetic-fie-928702.jpg?v=1735489849 TM-192D Digital Mini Triple Axis 2000Hz EMF ELF Magnetic Field Meter Gauss Meter 2000mG Datalogger with USB PC Software, Electromagnetic Field Detector TM - 192D Digital Mini Triple Axis 2000Hz EMF ELF Magnetic Field Meter Gauss Meter 2000mG Datalogger with USB PC Software, Electromagnetic Field Detector - Gain Express https://www.gainexpress.com/products/tm-196 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-tm-196-tm-196-triaxial-tri-axis-rf-field-strength-meter-electromagnetic-radiation-tester-detector-10mhz-to-8ghz-with-alarm-and-tripod-mounting-comp-150913.jpg?v=1735489844 TM-196 Triaxial Tri-Axis RF Field Strength Meter Electromagnetic Radiation Tester Detector 10MHz to 8GHz with Alarm and Tripod Mounting, Compact, MIni TM - 196 Triaxial Tri - Axis RF Field Strength Meter Electromagnetic Radiation Tester Detector 10MHz to 8GHz with Alarm and Tripod Mounting, Compact, MIni - Gain Express https://www.gainexpress.com/products/phm-205 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-phm-205-phm-205-3-in-1-ph-ec-temperature-waterproof-meter-monitor-water-quality-tester-pen-type-acidometer-drink-water-quality-analyzer-multi-param-849506.jpg?v=1732854124 PHM-205 3 in 1 pH / EC / Temperature Waterproof Meter Monitor Water Quality Tester Pen Type Acidometer Drink Water Quality Analyzer Multi-Parameter PHM - 205 PHM - 205 3 in 1 pH / EC / Temperature Waterproof Meter Monitor Water Quality Tester Pen Type Acidometer Drink Water Quality Analyzer Multi - Parameter - Gain Express https://www.gainexpress.com/products/nf-8601w 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-nf-8601w-nf-8601w-digital-cable-tester-wire-tracker-rj45-rj11-bnc-cable-length-with-free-tf-card-handheld-tester-with-8-remote-identifier-poe-ping--366557.jpg?v=1732854122 NF-8601W Digital Cable Tester Wire Tracker RJ45 RJ11 BNC Cable Length, with FREE TF Card, Handheld Tester with 8 Remote Identifier PoE PING Data Storage Function and Port Flash NF - 8601W NF - 8601W Digital Cable Tester Wire Tracker RJ45 RJ11 BNC Cable Length, with FREE TF Card, Handheld Tester with 8 Remote Identifier PoE PING Data Storage Function and Port Flash - Gain Express https://www.gainexpress.com/products/nf-8601 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-nf-8601-nf-8601-digital-cable-length-tester-rj45-rj11-bnc-coax-network-with-free-tf-card-handheld-cable-tester-wire-tracker-poe-ping-ethernet-teste-752337.jpg?v=1732854121 NF-8601 Digital Cable Length Tester RJ45 RJ11 BNC Coax Network, with Free TF Card, handheld Cable Tester Wire Tracker POE PING Ethernet Tester, STP/UTP 5E, 6E NF - 8601 NF - 8601 Digital Cable Length Tester RJ45 RJ11 BNC Coax Network, with Free TF Card, handheld Cable Tester Wire Tracker POE PING Ethernet Tester, STP/UTP 5E, 6E - Gain Express https://www.gainexpress.com/products/nf-8601a 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-nf-8601a-nf-8601a-digital-cable-tester-wire-tracker-rj45-rj11-bnc-cable-length-handheld-tester-with-remote-identifier-poe-ping-data-storage-functio-755440.jpg?v=1735489614 NF-8601A Digital Cable Tester Wire Tracker RJ45 RJ11 BNC Cable Length, Handheld Tester with Remote Identifier PoE PING Data Storage Function and Port Flash NF - 8601A Digital Cable Tester Wire Tracker RJ45 RJ11 BNC Cable Length, Handheld Tester with Remote Identifier PoE PING Data Storage Function and Port Flash - Gain Express https://www.gainexpress.com/products/nf-1107 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-nf-1107-nf-1107-network-cable-testing-diagnostic-tool-kit-set-ethernet-lan-cable-tester-wire-tracker-voltage-detector-punch-tool-rj45-rj11-463177.jpg?v=1735489641 NF-1107 Network Cable Testing Diagnostic Tool Kit Set- Ethernet LAN Cable Tester Wire Tracker Voltage Detector Punch Tool RJ45 RJ11 NF - 1107 Network Cable Testing Diagnostic Tool Kit Set - Ethernet LAN Cable Tester Wire Tracker Voltage Detector Punch Tool RJ45 RJ11 - Gain Express https://www.gainexpress.com/products/nf-868w 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/1-gainexpress-gain-express-Cable-Tester-NF-868W-preview_667.jpg?v=1565088726 NF-868W Digital Cable Tester Tracker with 8 Remote Adaptor Wiremap RJ45 RJ11 BNC USB Multifunction Network Ethernet LAN Telephone Wire Cable Length Tester Nf-868W Digital Cable Tester Tracker With 8 Remote Adaptor Wiremap Rj45 Rj11 Bnc Usb Multifunction https://www.gainexpress.com/products/nf-819 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-nf-819-nf-819-anti-jamming-underground-cable-tracker-detector-tester-wire-locator-low-voltage-w-polarity-test-function-locate-electrical-wires-tele-134024.jpg?v=1732854231 NF-819 Anti-jamming Underground Cable Tracker Detector Tester Wire Locator Low Voltage w/ Polarity Test Function Locate Electrical Wires, Telephone Wire, Coax Cable NF - 819 NF - 819 Anti - jamming Underground Cable Tracker Detector Tester Wire Locator Low Voltage w/ Polarity Test Function Locate Electrical Wires, Telephone Wire, Coax Cable - Gain Express https://www.gainexpress.com/products/nf-820 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-nf-820-nf-820-underground-cable-tracker-detector-tester-for-ac-220v-high-low-voltage-anti-jamming-wire-locator-with-alligator-clip-coax-bnc-telepho-769225.jpg?v=1735489612 NF-820 Underground Cable Tracker Detector Tester for AC 220V High & Low Voltage, Anti-jamming, Wire Locator with Alligator Clip, Coax BNC telephone RJ11 network RJ45 cable, Multi-core Metal Line NF - 820 Underground Cable Tracker Detector Tester for AC 220V High & Low Voltage, Anti - jamming, Wire Locator with Alligator Clip, Coax BNC telephone RJ11 network RJ45 cable, Multi - core Metal Line - Gain Express https://www.gainexpress.com/products/nf-906c 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-nf-906c-us-nf-906c-new-fiber-optical-optic-50-26-dbm-power-meter-tester-fault-locator-fc-sc-st-lc-for-catv-cctv-telecommunications-cabling-system-760784.jpg?v=1735489620 NF-906C New Fiber Optical Optic -50 ~ +26 dBm Power Meter Tester Fault locator FC SC ST LC for CATV CCTV Telecommunications Cabling System NF - 906C New Fiber Optical Optic - 50 ~ +26 dBm Power Meter Tester Fault locator FC SC ST LC for CATV CCTV Telecommunications Cabling System - Gain Express https://www.gainexpress.com/products/nf-268 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-nf-268-nf-268-rj45-rj11-bnc-wire-tracker-locator-wire-sorting-hunting-circuit-status-checking-tracing-stp-utp-network-telephone-coax-cable-tester-f-941571.jpg?v=1735489602 NF-268 RJ45 RJ11 BNC Wire Tracker Locator - Wire Sorting Hunting Circuit Status Checking Tracing STP UTP Network Telephone Coax Cable Tester Finder with Complete AC interference Rejection Error Locator Cable Mapping NF - 268 RJ45 RJ11 BNC Wire Tracker Locator - Wire Sorting Hunting Circuit Status Checking Tracing STP UTP Network Telephone Coax Cable Tester Finder with Complete AC interference Rejection Error Locator Cable Mapping - Gain Express https://www.gainexpress.com/products/nf-308b 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/1-gainexpress-gain-express-cable-tester-NF-308B-preveiw_3f2588ad-a5fd-4de1-919a-bb05e7307434.jpg?v=1564770396 NF-308B Nf-308B https://www.gainexpress.com/products/nf-388b 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/n03nf-388b-multipurpose-network-lan-cable-tester-w-8-far-end-test-jacks-testers-905.jpg?v=1754986658 N03NF-388B Multipurpose Network LAN Cable Tester w/ 8 far-end test jacks N03NF - 388B N03NF - 388B Multipurpose Network LAN Cable Tester w/ 8 far - end test jacks - Gain Express https://www.gainexpress.com/products/nf-1202 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-nf-1202-nf-1202-combo-set-network-cable-tester-tool-kit-crimping-crimper-tool-punch-down-tool-wire-stripper-cutter-rj45-rj11-usb-bnc-flat-utp-cat5--182137.jpg?v=1732854230 NF-1202 Combo Set Network Cable Tester Tool Kit - Crimping Crimper Tool Punch Down Tool Wire Stripper Cutter, RJ45 RJ11 USB BNC Flat UTP Cat5 Cat6 Coax cable Stripping Universal Tool NF - 1202 NF - 1202 Combo Set Network Cable Tester Tool Kit - Crimping Crimper Tool Punch Down Tool Wire Stripper Cutter, RJ45 RJ11 USB BNC Flat UTP Cat5 Cat6 Coax cable Stripping Universal Tool - Gain Express https://www.gainexpress.com/products/nf-806b 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/1-gainexpress-gain-express-cable-tester-NF-806B-preview_a6ab215e-2196-43ba-a5a2-9b4f45291b8d.jpg?v=1564770529 NF-806B Nf-806B https://www.gainexpress.com/products/dis-61 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-dis-61-dis-61-digital-laser-distance-meter-70m-229ft-handheld-range-finder-area-volume-measuring-tools-meter-tester-with-backlight-and-spirit-bubbl-294502.jpg?v=1732853788 DIS-61 Digital Laser Distance Meter 70m (229ft) Handheld Range Finder Area & Volume Measuring Tools Meter Tester with Backlight and Spirit Bubble Level, ±1mm accuracy DIS - 61 DIS - 61 Digital Laser Distance Meter 70m (229ft) Handheld Range Finder Area & Volume Measuring Tools Meter Tester with Backlight and Spirit Bubble Level, ±1mm accuracy - Gain Express https://www.gainexpress.com/products/msc-55 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-msc-55-msc-55-gain-express-1080p-full-hd-usb-wifi-digital-microscope-10x-220x-magnification-for-ios-andriod-pc-with-6-led-3-mega-pixels-adjustable--408381.jpg?v=1732853970 MSC-55 Gain Express 1080P Full HD USB Wifi Digital Microscope 10x-220x Magnification for iOS/ Andriod/ PC with 6 LED, 3 Mega Pixels, Adjustable Focus, Handheld & Desktop Compatible Wireless Rechargeable MSC - 55 MSC - 55 Gain Express 1080P Full HD USB Wifi Digital Microscope 10x - 220x Magnification for iOS/ Andriod/ PC with 6 LED, 3 Mega Pixels, Adjustable Focus, Handheld & Desktop Compatible Wireless Rechargeable - Gain Express https://www.gainexpress.com/products/wea-46 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-wea-46-wea-46-digital-weather-station-with-thermometer-and-hygrometer-3-indoor-outdoor-wireless-sensors-alarm-clock-for-temperature-and-humidity-me-882531.jpg?v=1735489847 WEA-46 Digital Weather Station with Thermometer and Hygrometer 3 Indoor/ Outdoor Wireless Sensors, Alarm Clock for Temperature and Humidity measurement WEA - 46 Digital Weather Station with Thermometer and Hygrometer 3 Indoor/ Outdoor Wireless Sensors, Alarm Clock for Temperature and Humidity measurement - Gain Express https://www.gainexpress.com/products/wea-47_uk 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-wea-47-uk-wea-47-uk-digital-weather-station-rcc-msf-with-3-indoor-outdoor-wireless-sensors-with-6-kinds-of-weather-forecast-thermometer-and-hygrome-900010.jpg?v=1735489848 WEA-47_UK Digital Weather Station RCC MSF with 3 Indoor/ Outdoor Wireless Sensors, with 6 kinds of Weather Forecast, Thermometer and Hygrometer, with Alarm Clock for Temperature and Humidity measurement, Low battery for Colored’ LED on LCD Display WEA - 47_UK Digital Weather Station RCC MSF with 3 Indoor/ Outdoor Wireless Sensors, with 6 kinds of Weather Forecast, Thermometer and Hygrometer, with Alarm Clock for Temperature and Humidity measurement, Low battery for Colored’ LED on LCD Display - Gain Express https://www.gainexpress.com/products/htm-49 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-htm-49-htm-49-gain-express-digital-humidity-temperature-meter-hygrometer-psychrometer-dew-point-and-wet-bulb-temperature-range-20700c-humidity-rang-930451.jpg?v=1732854228 HTM-49 Gain Express Digital Humidity & Temperature Meter Hygrometer Psychrometer, Dew point and Wet-bulb Temperature range -20~70°C, Humidity range 0~100%RH, Min/Max Hold, LCD Backlight HTM - 49 HTM - 49 Gain Express Digital Humidity & Temperature Meter Hygrometer Psychrometer, Dew point and Wet - bulb Temperature range - 20~70°C, Humidity range 0~100%RH, Min/Max Hold, LCD Backlight - Gain Express https://www.gainexpress.com/products/tmg-50 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-tmg-50-tmg-50-portable-film-coating-thickness-gauge-tester-meter-automotive-car-nondestructive-non-magnetic-coating-on-metal-for-manufacturing-car--146600.jpg?v=1735489820 TMG-50 Portable Film Coating Thickness Gauge Tester Meter, Automotive Car Nondestructive, Non-magnetic Coating on Metal for Manufacturing, Car Trading, Inspection TMG - 50 Portable Film Coating Thickness Gauge Tester Meter, Automotive Car Nondestructive, Non - magnetic Coating on Metal for Manufacturing, Car Trading, Inspection - Gain Express https://www.gainexpress.com/products/man-45 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-man-45-man-45-professional-digital-manometer-portable-handheld-air-vacuum-gas-pressure-gauge-meter-11-units-with-backlight-1378kpa-2psi-suitable-fo-926964.jpg?v=1732853971 MAN-45 Professional Digital Manometer, Portable Handheld Air Vacuum/ Gas Pressure Gauge Meter 11 Units with Backlight, ±13.78kPa ±2PSI, Suitable for Differential Pressure of 1-2 Pipes, Ventilation, Air Condition System Measurement MAN - 45 MAN - 45 Professional Digital Manometer, Portable Handheld Air Vacuum/ Gas Pressure Gauge Meter 11 Units with Backlight, ±13.78kPa ±2PSI, Suitable for Differential Pressure of 1 - 2 Pipes, Ventilation, Air Condition System Measurement - Gain Express https://www.gainexpress.com/products/end-206_5-5mm_1m 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/1-gainexpress-gain-express-inspection-camera-END-206_5.5mm_1M-preview_386.jpg?v=1565060550 END-206_5.5mm_1M 2.7" LCD Screen Monitor Portable HD Industrial Inspection Camera, Borescope, Endoscope, Snake Scope with 1M Waterproof Cable, 5.5mm Camera Head with 6 LED Lights, FREE Carry Pouch End-206_5.5Mm_1M 2.7 Lcd Screen Monitor Portable Hd Industrial Inspection Camera Borescope Endoscope https://www.gainexpress.com/products/dis-209 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-dis-209-dis-209-40m-131ft-digital-laser-distance-meter-measuring-device-d8-rangefinder-measure-telemetro-range-finder-with-backlit-lcd-screen-singl-367369.jpg?v=1732853673 DIS-209 40M (131ft) Digital Laser Distance Meter Measuring Device D8 Rangefinder Measure Telemetro Range Finder with Backlit LCD Screen, Single-distance/ Continuous Measurement Area Pythagorean Modes, +/- 1.5mm High Accuracy DIS - 209 DIS - 209 40M (131ft) Digital Laser Distance Meter Measuring Device D8 Rangefinder Measure Telemetro Range Finder with Backlit LCD Screen, Single - distance/ Continuous Measurement Area Pythagorean Modes, +/ - 1.5mm High Accuracy - Gain Express https://www.gainexpress.com/products/wea-47_eu 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-wea-47-eu-wea-47-eu-digital-weather-station-rcc-dcf-with-3-indoor-outdoor-wireless-sensors-with-6-kinds-of-weather-forecast-thermometer-and-hygrome-277975.jpg?v=1735489896 WEA-47_EU Digital Weather Station RCC DCF with 3 Indoor/ Outdoor Wireless Sensors, with 6 kinds of Weather Forecast, Thermometer and Hygrometer, with Alarm Clock for Temperature and Humidity measurement, Low battery for Colored LED on LCD Display WEA - 47_EU Digital Weather Station RCC DCF with 3 Indoor/ Outdoor Wireless Sensors, with 6 kinds of Weather Forecast, Thermometer and Hygrometer, with Alarm Clock for Temperature and Humidity measurement, Low battery for Colored LED on LCD Display - Gain Express https://www.gainexpress.com/products/co22 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-co22-co22-carbon-dioxide-temperature-humidity-indoor-air-quality-monitor-meter-wall-mountable-co2-detector-02000ppm-range-768210.jpg?v=1732854229 CO22 Carbon Dioxide / Temperature/ Humidity Indoor Air Quality Monitor Meter, Wall Mountable CO2 Detector 0~2000ppm Range CO22 CO22 Carbon Dioxide / Temperature/ Humidity Indoor Air Quality Monitor Meter, Wall Mountable CO2 Detector 0~2000ppm Range - Gain Express https://www.gainexpress.com/products/tac-44 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-tac-44-tac-44-handheld-digital-laser-non-contact-tachometer-rotational-speed-measuring-gun-25-99999-rpm-record-60-data-max-min-avg-0021-digtal-accu-440861.jpg?v=1735489824 TAC-44 Handheld Digital Laser Non-Contact Tachometer, Rotational Speed Measuring Gun, 2.5-99999 RPM, Record (60 Data) MAX/ MIN/ AVG ±0.02%+1 Digtal Accuracy, Speedometer for Small Engines, Car, Bike, Motorcycle, Surface Speed Tach Meter Gauge TAC - 44 Handheld Digital Laser Non - Contact Tachometer, Rotational Speed Measuring Gun, 2.5 - 99999 RPM, Record (60 Data) MAX/ MIN/ AVG ±0.02%+1 Digtal Accuracy, Speedometer for Small Engines, Car, Bike, Motorcycle, Surface Speed Tach Meter Gauge - Gain Express https://www.gainexpress.com/products/cab-38 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-cab-38-cab-38-opm-optical-power-meter-digital-power-factor-meter-70-6dbm-with-6-optic-wave-length-portable-fiber-optic-cable-tester-with-fc-convert-500156.jpg?v=1732853749 CAB-38 OPM Optical Power Meter Digital Tester, -70 ~ 6dBm with 6 Optic Wave Length, Portable Fiber Optic Cable Tester with FC converter for FC/SC/ST CAB - 38 CAB - 38 OPM Optical Power Meter Digital Power Factor Meter, - 70 ~ 6dBm with 6 Optic Wave Length, Portable Fiber Optic Cable Tester with FC converter for FC/SC/ST - Gain Express https://www.gainexpress.com/products/rlt-207 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-rlt-207-rlt-207-60-led-microscope-ring-light-scope-illuminator-with-4-zone-quadrant-control-adapter-fitting-and-8-adjustable-brightness-level-4060m-449074.jpg?v=1735489745 RLT-207 60 LED Microscope Ring Light Scope Illuminator with 4-Zone Quadrant Control, Adapter Fitting and 8 Adjustable Brightness Level 40~60mm Diameter RLT - 207 60 LED Microscope Ring Light Scope Illuminator with 4 - Zone Quadrant Control, Adapter Fitting and 8 Adjustable Brightness Level 40~60mm Diameter - Gain Express https://www.gainexpress.com/products/nf-902 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-nf-902-nf-902-fiber-optical-light-source-for-power-meter-handheld-with-1310-1550nm-wavelength-fc-st-sc-interchangeable-interfaces-447714.jpg?v=1732854159 NF-902 Fiber Optical Light Source for Power Meter Handheld with 1310/ 1550nm Wavelength FC/ ST/ SC Interchangeable Interfaces NF - 902 NF - 902 Fiber Optical Light Source for Power Meter Handheld with 1310/ 1550nm Wavelength FC/ ST/ SC Interchangeable Interfaces - Gain Express https://www.gainexpress.com/products/msc-208 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-msc-208-us-msc-208-cold-led-dual-gooseneck-lights-microscope-illuminator-with-dimmer-6500k-adjustable-brightness-100v240v-756231.jpg?v=1732854355 MSC-208 Cold LED Dual Gooseneck Lights Microscope Illuminator with Dimmer, 6500K, Adjustable Brightness 100V~240V MSC - 208_US MSC - 208 Cold LED Dual Gooseneck Lights Microscope Illuminator with Dimmer, 6500K, Adjustable Brightness 100V~240V - Gain Express https://www.gainexpress.com/products/lkd-51 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-lkd-51-lkd-51-professional-microwave-oven-leakage-radiation-detector-meter-tester-with-backlight-built-in-alarm-measurement-range-0-999mwcm2-2450mh-576575.jpg?v=1735489599 LKD-51 Professional Microwave Oven Leakage Radiation Detector Meter Tester with Backlight & Built-in Alarm, Measurement Range 0-9.99mW/cm2, 2450MHz, No Recalibration Needed LKD - 51 Professional Microwave Oven Leakage Radiation Detector Meter Tester with Backlight & Built - in Alarm, Measurement Range 0 - 9.99mW/cm2, 2450MHz, No Recalibration Needed - Gain Express https://www.gainexpress.com/products/ffc-1108-1 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ffc-1108-1-ffc-1108-1-lucky-portable-fish-finder-sonar-tn-anti-uv-lcd-display-with-clear-led-backlight-for-night-fishing-wired-fishfinder-with-alar-394393.jpg?v=1735489471 FFC-1108-1 Lucky Portable Fish Finder Sonar, TN/ Anti-UV LCD Display with Clear LED Backlight for Night Fishing, Wired Fishfinder with Alarm, 100M (328ft) Depth Detection, Turbid Water, Reservoir, Sea, River, lake, Boat Kayak Ice Fishing FFC - 1108 - 1 Lucky Portable Fish Finder Sonar, TN/ Anti - UV LCD Display with Clear LED Backlight for Night Fishing, Wired Fishfinder with Alarm, 100M (328ft) Depth Detection, Turbid Water, Reservoir, Sea, River, lake, Boat Kayak Ice Fishing - Gain Express https://www.gainexpress.com/products/vid-71_5-5_2m 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/1-gain-express-gainexpress-endoscope-VID-71_5.5_2M-Preview_487.jpg?v=1565061067 VID-71_5.5_2M 5.5mm 2M Handheld Inspection Camera Endoscope 4 LED 2.4" Monitor Borescope, Industrial Flexible Snake Scope Cable, IP67 Scope Vid-71_5.5_2M 5.5Mm 2M Handheld Inspection Camera Endoscope 4 Led 2.4 Monitor Borescope Industrial https://www.gainexpress.com/products/the-222 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-the-222-the-222-non-contact-infrared-ir-laser-thermometer-k-type-thermocouple-508000c-5814720f-color-display-gun-type-with-alarm-542302.jpg?v=1735489864 THE-222 Non-contact Infrared IR Laser Thermometer K-Type Thermocouple -50~800°C / -58~1472°F Color Display Gun-Type with Alarm THE - 222 Non - contact Infrared IR Laser Thermometer K - Type Thermocouple - 50~800°C / - 58~1472°F Color Display Gun - Type with Alarm - Gain Express https://www.gainexpress.com/products/clm-221 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-clm-221-clm-221-smart-digital-clamp-meter-multimeter-6000-counts-auto-scan-anti-burn-auto-range-acdc-voltage-aca-ncv-tester-376336.jpg?v=1732853673 CLM-221 Smart Digital Clamp Meter Multimeter 6000 Counts Auto Scan Anti-burn Auto Range AC/DC Voltage ACA NCV Tester CLM - 221 CLM - 221 Smart Digital Clamp Meter Multimeter 6000 Counts Auto Scan Anti - burn Auto Range AC/DC Voltage ACA NCV Tester - Gain Express https://www.gainexpress.com/products/the-223 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-the-223-the-223-non-contact-infrared-ir-laser-thermometer-temperature-gun-w-k-type-thermocouple-humidity-508000c-5814720f-667113.jpg?v=1735489846 THE-223 Non-contact Infrared IR Laser Thermometer Temperature Gun w/ K-Type Thermocouple & Humidity, -50~800°C (-58~1472°F) THE - 223 Non - contact Infrared IR Laser Thermometer Temperature Gun w/ K - Type Thermocouple & Humidity, - 50~800°C ( - 58~1472°F) - Gain Express https://www.gainexpress.com/products/eng-214 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-eng-214-eng-214-auto-ranging-lcd-digital-multimeter-engine-analyzer-tester-dcvacv-rpm-tachometer-dwell-angle-current-temperature-resistance-diode-c-947465.jpg?v=1732853756 ENG-214 Auto-Ranging LCD Digital Multimeter Engine Analyzer Tester DCV/ACV, RPM Tachometer, Dwell Angle, Current, Temperature, Resistance, Diode Continuity Test, Pulse Width ENG - 214 ENG - 214 Auto - Ranging LCD Digital Multimeter Engine Analyzer Tester DCV/ACV, RPM Tachometer, Dwell Angle, Current, Temperature, Resistance, Diode Continuity Test, Pulse Width - Gain Express https://www.gainexpress.com/products/eng-215 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-eng-215-eng-215-digital-engine-analyzer-automotive-multimeter-6000-counts-dc-ac-voltage-dc-ac-current-resistance-capacitance-frequency-duty-cycle-t-495043.jpg?v=1732853789 ENG-215 Digital Engine Analyzer Automotive Multimeter 6000 Counts - 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DC AC Amp Volt Ohm Frequency Capaitance Temperature Meter Battery Tester, with Auto LCD Backlight, Overload Protection MUL - 210 MUL - 210 Digital Auto Range Autoranging DMM Multimeter - DC AC Amp Volt Ohm Frequency Capaitance Temperature Meter Battery Tester, with Auto LCD Backlight, Overload Protection - Gain Express https://www.gainexpress.com/products/mul-211 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-mul-211-mul-211-digital-dmm-multimeter-meter-tester-with-usb-software-cd-and-data-output-function-ac-dc-voltage-ac-dc-current-auto-range-capacitanc-296594.jpg?v=1732853974 MUL-211 Digital DMM Multimeter Meter Tester with USB/ Software CD and Data Output Function, AC DC voltage, AC DC current, Auto Range, Capacitance, Resistance, Frequency, Diode and Continuity Test, Duty Cycle MUL - 211 MUL - 211 Digital DMM Multimeter Meter Tester with USB/ Software CD and Data Output Function, AC DC voltage, AC DC current, Auto Range, Capacitance, Resistance, Frequency, Diode and Continuity Test, Duty Cycle - Gain Express https://www.gainexpress.com/products/htm-41 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-htm-41-htm-41-digital-wood-moisture-meter-270-humidity-2090-rh-temperature-10600c-141400f-tester-timber-damp-detector-portable-measure-water-percen-817738.jpg?v=1732853910 HTM-41 Digital Wood Moisture Meter 2~70% Humidity 20~90% RH Temperature -10~60°C (14~140°F) Tester, Timber, Damp Detector Portable, Measure Water Percentage in Sheetrock, Bamboo, Paper, Soft Wood HTM - 41 HTM - 41 Digital Wood Moisture Meter 2~70% Humidity 20~90% RH Temperature - 10~60°C (14~140°F) Tester, Timber, Damp Detector Portable, Measure Water Percentage in Sheetrock, Bamboo, Paper, Soft Wood - Gain Express https://www.gainexpress.com/products/htm-42 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-htm-42-htm-42-portable-digital-grain-moisture-meter-compact-high-quality-rice-corn-wheat-tester-analyzer-range-530-temperature-humidity-measure-217559.jpg?v=1732854355 HTM-42 Portable Digital Grain Moisture Meter, Compact High Quality Rice Corn Wheat Tester Analyzer- Range 5~30%, Temperature Humidity Measure HTM - 42 HTM - 42 Portable Digital Grain Moisture Meter, Compact High Quality Rice Corn Wheat Tester Analyzer - Range 5~30%, Temperature Humidity Measure - Gain Express https://www.gainexpress.com/products/mul-212 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-mul-212-mul-212-digital-dmm-bluetooth-multimeter-with-ios-android-mobile-app-ac-dc-voltage-ac-dc-current-auto-range-capacitance-resistance-frequenc-414678.jpg?v=1732853973 MUL-212 Digital DMM Bluetooth Multimeter with iOS & Android Mobile App, AC DC voltage, AC DC current, Auto Range, Capacitance, Resistance, Frequency, Diode and Continuity Test, Duty Cycle, Temperature, Meter Tester MUL - 212 MUL - 212 Digital DMM Bluetooth Multimeter with iOS & Android Mobile App, AC DC voltage, AC DC current, Auto Range, Capacitance, Resistance, Frequency, Diode and Continuity Test, Duty Cycle, Temperature, Meter Tester - Gain Express https://www.gainexpress.com/products/mul-213 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-mul-213-mul-213-network-digital-multimeter-tester-multi-meter-telephone-line-rj11-cable-rj45-ac-dc-voltage-ac-dc-current-resistance-diode-continuit-274432.jpg?v=1732854237 MUL-213 Network Digital Multimeter Tester Multi Meter, Telephone Line RJ11, Cable RJ45, AC DC Voltage, AC DC Current, Resistance, Diode Continuity Test, Battery Meter Tester MUL - 213 MUL - 213 Network Digital Multimeter Tester Multi Meter, Telephone Line RJ11, Cable RJ45, AC DC Voltage, AC DC Current, Resistance, Diode Continuity Test, Battery Meter Tester - Gain Express https://www.gainexpress.com/products/the-217 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-the-217-the-217-non-contact-lasergrip-infrared-121-ds-thermometer-laser-temperature-gun-30-5500c-22-to-10220f-digital-ir-instrument-meter-241024.jpg?v=1735489873 THE-217 Non-Contact Lasergrip Infrared 12:1 DS Thermometer Laser Temperature Gun -30 ~ 550°C (-22 to 1022°F) Digital IR Instrument Meter THE - 217 Non - Contact Lasergrip Infrared 12:1 DS Thermometer Laser Temperature Gun - 30 ~ 550°C ( - 22 to 1022°F) Digital IR Instrument Meter - Gain Express https://www.gainexpress.com/products/the-218 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-the-218-the-218-k-type-non-contact-lasergrip-infrared-ir-121-thermometer-with-thermocouple-30-5500c-2210220f-digital-laser-temperature-gun-instrume-599648.jpg?v=1735489865 THE-218 K-type Non Contact Lasergrip Infrared IR 12:1 Thermometer with Thermocouple -30 ~ 550°C (-22~1022°F), Digital Laser Temperature Gun Instrument Meter THE - 218 K - type Non Contact Lasergrip Infrared IR 12:1 Thermometer with Thermocouple - 30 ~ 550°C ( - 22~1022°F), Digital Laser Temperature Gun Instrument Meter - Gain Express https://www.gainexpress.com/products/the-219 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-the-219-the-219-dual-laser-ir-infrared-thermometer-5015000c-580f-27320f-301-ds-non-contact-digital-temperature-meter-gun-pistol-type-double-laser-p-475518.jpg?v=1735489892 THE-219 Dual Laser IR Infrared Thermometer -50~1500°C (-58°F~ 2732°F), 30:1 DS, Non-contact Digital Temperature Meter Gun Pistol Type, Double Laser Pointer THE - 219 Dual Laser IR Infrared Thermometer - 50~1500°C ( - 58°F~ 2732°F), 30:1 DS, Non - contact Digital Temperature Meter Gun Pistol Type, Double Laser Pointer - Gain Express https://www.gainexpress.com/products/end-225_5-5mm_1m 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/1-gainexpress-gain-express-borescope-END-225_5.5MM_1M-preview_392.jpg?v=1565061484 END-225_5.5MM_1M Inspection Camera Recordable Endoscope 5.5mm 1M CMOS Cable Waterproof with 6 LED Lights, 2.3" TFT Color LCD Borescope Industrial Tube Snake Scope, NTSC/PAL End-225_5.5Mm_1M Inspection Camera Recordable Endoscope 5.5Mm 1M Cmos Cable Waterproof With 6 Led https://www.gainexpress.com/products/cab-40 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-cab-40-cab-40-cable-wire-cctv-security-camera-tester-tracker-scanner-circuit-breaker-finders-20-inch-tft-lcd-handheld-pal-ntsc-rechargeable-174354.jpg?v=1732853636 CAB-40 Cable Wire CCTV Security Camera Tester Tracker Scanner, Circuit Breaker Finders, 2.0 inch TFT LCD Handheld PAL / NTSC Rechargeable CAB - 40 CAB - 40 Cable Wire CCTV Security Camera Tester Tracker Scanner, Circuit Breaker Finders, 2.0 inch TFT LCD Handheld PAL / NTSC Rechargeable - Gain Express https://www.gainexpress.com/products/the-39 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-the-39-the-39-lcd-digital-humidity-and-temperature-meter-gauge-2-in-1-measure-thermometer-with-type-k-thermocouple-sensor-probe-1098rh-10500c-14122-809152.jpg?v=1735489886 THE-39 LCD Digital Humidity and Temperature Meter Gauge 2 in 1 Measure Thermometer with Type K Thermocouple Sensor Probe, 10~98%RH, -10~50°C (14~122°F), -30~1000°C (-22~1832°F) K-type THE - 39 LCD Digital Humidity and Temperature Meter Gauge 2 in 1 Measure Thermometer with Type K Thermocouple Sensor Probe, 10~98%RH, - 10~50°C (14~122°F), - 30~1000°C ( - 22~1832°F) K - type - Gain Express https://www.gainexpress.com/products/ph-035 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/innovative-life-phmeter-PH-035_case_535.jpg?v=1565145813 PH-035 Waterproof Digital pH and Temperature Meter °C / °F 0.00~14.00 pH Range with 2-Liner Display Ph-035 Waterproof Digital Ph And Temperature Meter °C / °F 0.00~14.00 Range With 2-Liner Display https://www.gainexpress.com/products/orp-228 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-orp-228-orp-228-orp-redox-meter-tester-19991999mv-1-point-calibration-oxidation-reduction-potential-aquariums-swimming-pools-water-treatment-system-398498.jpg?v=1732854230 ORP-228 ORP Redox Meter Tester -1999~1999mV, 1-point Calibration, Oxidation Reduction Potential, Aquariums, Swimming Pools, Water Treatment Systems, Aquaculture, Spa ORP - 228 ORP - 228 ORP Redox Meter Tester - 1999~1999mV, 1 - point Calibration, Oxidation Reduction Potential, Aquariums, Swimming Pools, Water Treatment Systems, Aquaculture, Spa - Gain Express https://www.gainexpress.com/products/phm-224 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/1-gainexpress-gain-express-water-quality-meter-PHM-224-preview_225.jpg?v=1565145683 PHM-224 PH ORP Temperature 3-in-1 Combo Meter Tester Pen Type with Automatic Temperature Compensation Phm-224 Ph Orp Temperature 3-In-1 Combo Meter Tester Pen Type With Automatic Compensation Water https://www.gainexpress.com/products/phm-237 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-phm-237-phm-237-economical-ph-pocket-meter-tester-size-with-clip-high-accuracy-removable-probe-electrode-laboratory-school-aquarium-714439.jpg?v=1732854123 PHM-237 Economical pH Pocket Meter Tester Size with Clip, High Accuracy Removable Probe Electrode, Laboratory, School, Aquarium PHM - 237 PHM - 237 Economical pH Pocket Meter Tester Size with Clip, High Accuracy Removable Probe Electrode, Laboratory, School, Aquarium - Gain Express https://www.gainexpress.com/products/phm-226 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-phm-226-phm-226-3-in-1-ph-temperature-conductivity-ec-meter-tester-digital-pen-type-1999-mscm-aquarium-tank-swimming-pool-lab-spa-618325.jpg?v=1732854230 PHM-226 3-in-1 pH Temperature Conductivity EC Meter Tester Digital Pen-Type 19.99 mS/cm, Aquarium, Tank, Swimming Pool, Lab, Spa PHM - 226 PHM - 226 3 - in - 1 pH Temperature Conductivity EC Meter Tester Digital Pen - Type 19.99 mS/cm, Aquarium, Tank, Swimming Pool, Lab, Spa - Gain Express https://www.gainexpress.com/products/ecm-227 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ecm-227-ecm-227-digital-lcd-ec-conductivity-meter-tester-01999mscm-pen-type-with-backlight-hydroponics-aquaculture-water-systems-962738.jpg?v=1732854157 ECM-227 Digital LCD EC Conductivity Meter Tester 0~19.99ms/cm Pen Type with Backlight, Hydroponics, Aquaculture, Water Systems ECM - 227 ECM - 227 Digital LCD EC Conductivity Meter Tester 0~19.99ms/cm Pen Type with Backlight, Hydroponics, Aquaculture, Water Systems - Gain Express https://www.gainexpress.com/products/ecm-231 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ecm-231-eu-ecm-231-online-ph-ec-conductivity-monitor-meter-tester-atc-water-quality-real-time-continuous-monitoring-rechargeable-for-aquaculture-aq-758005.jpg?v=1732853751 ECM-231 Online PH & EC Conductivity Monitor Meter Tester ATC, Water Quality Real-time Continuous Monitoring, Rechargeable, for Aquaculture, Aquarium, Pond, Hydroponics ECM - 231_EU ECM - 231 Online PH & EC Conductivity Monitor Meter Tester ATC, Water Quality Real - time Continuous Monitoring, Rechargeable, for Aquaculture, Aquarium, Pond, Hydroponics - Gain Express https://www.gainexpress.com/products/phm-229 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-phm-229-phm-229-digital-aquarium-ph-monitor-meter-tester-with-replaceable-electrode-continuous-monitoring-fish-tank-aquaculture-and-hydroponics-861109.jpg?v=1732854158 PHM-229 Digital Aquarium pH Monitor Meter Tester with Replaceable Electrode, Continuous Monitoring Fish Tank, Aquaculture and Hydroponics PHM - 229 PHM - 229 Digital Aquarium pH Monitor Meter Tester with Replaceable Electrode, Continuous Monitoring Fish Tank, Aquaculture and Hydroponics - Gain Express https://www.gainexpress.com/products/phm-230 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-phm-230-phm-230-digital-online-ph-temperature-continuous-monitor-meter-water-quality-monitoring-tester-for-aquarium-swimming-pool-tank-hydroponic-p-328987.jpg?v=1732854160 PHM-230 Digital Online pH & Temperature Continuous Monitor Meter, Water Quality Monitoring Tester for Aquarium Swimming Pool Tank Hydroponic Pond Spa PHM - 230 PHM - 230 Digital Online pH & Temperature Continuous Monitor Meter, Water Quality Monitoring Tester for Aquarium Swimming Pool Tank Hydroponic Pond Spa - Gain Express https://www.gainexpress.com/products/tds-232 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-tds-232-us-tds-232-digital-combo-ph-tds-monitor-meter-tester-atc-0001400ph-001999ppt-rechargeable-water-quality-real-time-monitoring-for-aquacultur-582849.jpg?v=1735489883 TDS-232 Digital Combo pH & TDS Monitor Meter Tester ATC, 0.00~14.00pH & 0.0~199.9ppt Rechargeable Water Quality Real-time Monitoring, for Aquaculture, Salinity, Aquarium, Pond, Hydroponics TDS - 232 Digital Combo pH & TDS Monitor Meter Tester ATC, 0.00~14.00pH & 0.0~199.9ppt Rechargeable Water Quality Real - time Monitoring, for Aquaculture, Salinity, Aquarium, Pond, Hydroponics - Gain Express https://www.gainexpress.com/products/phm-233 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-phm-233-phm-233-6-in-1-professional-multi-parameter-ph-orp-ec-cf-tds-ppm-temperature-combo-testing-meter-digital-multi-function-water-quality-monit-484033.jpg?v=1732854124 PHM-233 6 in 1 Professional Multi-parameter pH/ ORP/ EC/ CF/ TDS PPM/ Temperature Combo Testing Meter, Digital Multi-function Water Quality Monitor Tester PHM - 233 PHM - 233 6 in 1 Professional Multi - parameter pH/ ORP/ EC/ CF/ TDS PPM/ Temperature Combo Testing Meter, Digital Multi - function Water Quality Monitor Tester - Gain Express https://www.gainexpress.com/products/phm-234 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-phm-234-phm-234-3-in-1-ph-ec-tds-conductivity-monitor-atc-w-35-large-dual-display-water-quality-meter-tester-for-aquaculture-aquarium-pond-hydropon-163329.jpg?v=1732854233 PHM-234 3-in-1 pH, EC & TDS Conductivity Monitor ATC w/ 3.5" Large Dual Display, Water Quality Meter Tester for Aquaculture, Aquarium, Pond, Hydroponics PHM - 234 PHM - 234 3 - in - 1 pH, EC & TDS Conductivity Monitor ATC w/ 3.5" Large Dual Display, Water Quality Meter Tester for Aquaculture, Aquarium, Pond, Hydroponics - Gain Express https://www.gainexpress.com/products/orp-235 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-orp-235-orp-235-ph-mv-orp-temperature-3-in-1-redox-meter-removable-electrode-portable-water-quality-tester-thermometer-analysis-for-hydroponic-aqua-635892.jpg?v=1732854231 ORP-235 pH mV ORP Temperature 3 in 1 Redox Meter, Removable Electrode Portable Water Quality Tester Thermometer Analysis for Hydroponic Aquarium Fish Tank ORP - 235 ORP - 235 pH mV ORP Temperature 3 in 1 Redox Meter, Removable Electrode Portable Water Quality Tester Thermometer Analysis for Hydroponic Aquarium Fish Tank - Gain Express https://www.gainexpress.com/products/phm-236 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-phm-236-phm-236-758940.jpg?v=1735489684 PHM-236 PHM - 236 - Gain Express https://www.gainexpress.com/products/nd9b 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-nd9b-nd9b-digital-sound-level-meter-calibrator-94db-114db-for-12-and-1-inch-microphone-professional-noise-decibel-calibration-tool-accuracy-check-w-454713.jpg?v=1732854353 ND9B Digital Sound Level Meter Calibrator 94dB & 114dB for 1/2" and 1" inch Microphone, Professional Noise Decibel Calibration Tool Accuracy Check with Backlight ND9B ND9B Digital Sound Level Meter Calibrator 94dB & 114dB for 1/2" and 1" inch Microphone, Professional Noise Decibel Calibration Tool Accuracy Check with Backlight - Gain Express https://www.gainexpress.com/products/rea-200atc 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-rea-200atc-rea-200atc-3-in-1-automotive-battery-antifreeze-refractometer-6000c-ethylene-5000c-propylene-glycol-1100-1400-battery-fluids-specific-gr-229537.jpg?v=1732854156 REA-200ATC 3-in-1 Automotive Battery Antifreeze Refractometer, -60~0°C Ethylene/ -50~0°C Propylene Glycol/ 1.100-1.400 Battery Fluids Specific Gravity, Battery Charge Test Cooling System Coolant Freezing Point REA - 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10ATC REBS - 10ATC Tri - Scale Refractometer ATC Brix 0 - 10%/ Salinity 0 - 100PPT/ Specific Gravity 1.000 - 1.070, for Saltwater Brackish Marine Reef Tank Salt Sea Water Hydroponic Aquarium Control Monitoring - Gain Express https://www.gainexpress.com/products/res-10atc 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-res-10atc-res-10atc-dual-scale-salinity-refractometer-atc-0-100ppt-0-10-1000-1070-specific-gravity-portable-meter-tester-for-seawater-salt-sea-wate-649200.jpg?v=1732854354 RES-10ATC Dual Scale Salinity Refractometer ATC 0-100ppt (0-10%) & 1.000-1.070 Specific Gravity, Portable Meter Tester for Seawater Salt Sea Water Aquarium Brackish Reef Tank Marine RES - 10ATC RES - 10ATC Dual Scale Salinity Refractometer ATC 0 - 100ppt (0 - 10%) & 1.000 - 1.070 Specific Gravity, Portable Meter Tester for Seawater Salt Sea Water Aquarium Brackish Reef Tank Marine - Gain Express https://www.gainexpress.com/products/res-28atc 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-res-28atc-res-28atc-salinity-refractometer-0-28-atc-sodium-chloride-nacl-salt-level-meter-tester-test-kit-for-sea-water-brine-seawater-food-industr-137298.jpg?v=1732854351 RES-28ATC Salinity Refractometer 0-28% ATC, Sodium Chloride (NaCl) Salt Level Meter Tester, Test Kit for Sea Water Brine Seawater Food Industry Pickle Soy Sauce, ±0.2% Accuracy RES - 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25BATC Grape Fruit Wine Alcohol Refractometer with ATC, Dual Scale 0 - 25% VOL 0 - 40% Brix, Handheld Optical Meter Tester for Sugar Glucose Wine Making Winemakers Homebrew Test Tool - Gain Express https://www.gainexpress.com/products/rew-80atc 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-rew-80atc-rew-80atc-alcohol-refractometer-with-atc-080-vol-volume-optical-handheld-concentration-tester-meter-for-distilled-beverages-homebrew-360987.jpg?v=1732854354 REW-80ATC Alcohol Refractometer with ATC 0~80% VOL Volume, Optical Handheld Concentration Tester Meter for Distilled Beverages Homebrew REW - 80ATC REW - 80ATC Alcohol Refractometer with ATC 0~80% VOL Volume, Optical Handheld Concentration Tester Meter for Distilled Beverages Homebrew - Gain Express https://www.gainexpress.com/products/htm-238 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-htm-238-htm-238-handheld-digital-humidity-temperature-meter-0100-rh-30700c-221580f-lcd-display-backlight-moisture-thermo-hygrometer-thermometer-sma-455033.jpg?v=1732854157 HTM-238 Handheld Digital Humidity & Temperature Meter 0~100% RH/ -30~70°C (-22~158°F) LCD Display Backlight Moisture Thermo Hygrometer Thermometer Small Tester Gauge for Home Kitchen Indoor Outdoor HTM - 238 HTM - 238 Handheld Digital Humidity & Temperature Meter 0~100% RH/ - 30~70°C ( - 22~158°F) LCD Display Backlight Moisture Thermo Hygrometer Thermometer Small Tester Gauge for Home Kitchen Indoor Outdoor - Gain Express https://www.gainexpress.com/products/7755_cd_adaptor 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-7755-cd-adaptor-7755-cd-adaptor-carbon-dioxide-co2-rh-temperature-real-time-air-quality-monitor-with-pc-software-recording-analyzer-212925.jpg?v=1735489287 7755_CD_ADAPTOR Carbon Dioxide (CO2) RH & Temperature Real-Time Air Quality Monitor with PC Software Recording Analyzer 7755_CD_ADAPTOR Carbon Dioxide (CO2) RH & Temperature Real - Time Air Quality Monitor with PC Software Recording Analyzer - Gain Express https://www.gainexpress.com/products/77535_cd_adaptor 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-77535-cd-adaptor-77535-cd-adaptor-high-accuracy-co2-rh-temp-real-time-monitor-kit-set-wpc-software-recording-analyzer-portable-indoor-air-quality-c-403325.jpg?v=1732853670 77535_CD_ADAPTOR High Accuracy CO2, RH & Temp Real-Time Monitor Kit Set w/PC Software Recording Analyzer, Portable Indoor Air Quality Carbon Dioxide Meter Sensor, Temperature/Dew Point/Wet Bulb/Humidity 77535_CD_ADAPTOR 77535_CD_ADAPTOR High Accuracy CO2, RH & Temp Real - Time Monitor Kit Set w/PC Software Recording Analyzer, Portable Indoor Air Quality Carbon Dioxide Meter Sensor, Temperature/Dew Point/Wet Bulb/Humidity - Gain Express https://www.gainexpress.com/products/rebs-28atc 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-rebs-28atc-rebs-28atc-2-in-1-brix-salinity-refractometer-dual-scale-0-32-brix-0-28-salinity-with-atc-sodium-chloride-in-food-salt-seawater-brine-be-991420.jpg?v=1735489666 REBS-28ATC 2-in-1 Brix Salinity Refractometer Dual Scale 0-32% Brix & 0-28% Salinity with ATC Sodium Chloride in Food Salt Seawater Brine Beer fruits Cutting Liquid REBS - 28ATC 2 - in - 1 Brix Salinity Refractometer Dual Scale 0 - 32% Brix & 0 - 28% Salinity with ATC Sodium Chloride in Food Salt Seawater Brine Beer fruits Cutting Liquid - Gain Express https://www.gainexpress.com/products/reb-32sgatc 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/REB-32SGATC-preview.jpg?v=1736226544 REB-32SGATC Beer Brix & Specific Gravity Refractometer with ATC Optic Dual Scale 0~32% Brix 1.000-1.130 SG Wine Wort Making Beer Brewing Fruit Juice Hops Sugar Homebrew Kit https://www.gainexpress.com/products/rec-300atc 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-rec-300atc-rec-300atc-pet-clinical-refractometer-with-atc-tri-scale-serum-plasma-protein-test-2-14gdl-urine-specific-gravity-1000-1060sg-veterinary-313320.jpg?v=1735489667 REC-300ATC Pet Clinical Refractometer with ATC, Tri-Scale Serum & Plasma Protein Test 2-14g/dl Urine Specific Gravity 1.000-1.060SG, Veterinary Vet for Cat and Dog Animal Testing REC - 300ATC Pet Clinical Refractometer with ATC, Tri - Scale Serum & Plasma Protein Test 2 - 14g/dl Urine Specific Gravity 1.000 - 1.060SG, Veterinary Vet for Cat and Dog Animal Testing - Gain Express https://www.gainexpress.com/products/reb-10atc 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-reb-10atc-reb-10atc-0-10-brix-refractometer-with-atc-low-concentrated-sugar-content-solutions-accuracy-01-maple-sap-cutting-liquid-cnc-maple-syrup--621036.jpg?v=1732854231 REB-10ATC 0-10% Brix Refractometer with ATC Low-Concentrated Sugar Content Solutions Accuracy 0.1% Maple Sap Cutting Liquid CNC Maple Syrup Makers Tea REB - 10ATC REB - 10ATC 0 - 10% Brix Refractometer with ATC Low - Concentrated Sugar Content Solutions Accuracy 0.1% Maple Sap Cutting Liquid CNC Maple Syrup Makers Tea - Gain Express https://www.gainexpress.com/products/reb-90atc 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-reb-90atc-reb-90atc-3-in-1-honey-refractometer-brixmoisturebaume-tester-meter-atc-tri-scale-58-9012-2738-43be-sugar-water-content-level-beekeeping--934226.jpg?v=1735489668 REB-90ATC 3-in-1 Honey Refractometer Brix/Moisture/Baume Tester Meter ATC, Tri-Scale 58-90%/12-27%/38-43Be', Sugar Water Content Level Beekeeping Maple Syrup, Test Kit w/Calibration Oil & Block REB - 90ATC 3 - in - 1 Honey Refractometer Brix/Moisture/Baume Tester Meter ATC, Tri - Scale 58 - 90%/12 - 27%/38 - 43Be', Sugar Water Content Level Beekeeping Maple Syrup, Test Kit w/Calibration Oil & Block - Gain Express https://www.gainexpress.com/products/ff-1108-1cwla 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ff-1108-1cwla-ff-1108-1cwla-lucky-wireless-fish-finder-with-fish-attractive-light-lamp-color-lcd-portable-rechargeable-fishfinder-locator-45m-depth-366936.jpg?v=1732853752 FF-1108-1CWLA Lucky Wireless Fish Finder with Fish Attractive Light Lamp & Color LCD, Portable Rechargeable Fishfinder Locator, 45M Depth 60M Sonar Sensor Transducer Range for Boats Kayak Ice Night Fishing FF - 1108 - 1CWLA FF - 1108 - 1CWLA Lucky Wireless Fish Finder with Fish Attractive Light Lamp & Color LCD, Portable Rechargeable Fishfinder Locator, 45M Depth 60M Sonar Sensor Transducer Range for Boats Kayak Ice Night Fishing - Gain Express https://www.gainexpress.com/products/ffcw-1108-1 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ffcw-1108-1-lucky-ffcw-1108-1-wireless-fish-finder-sonar-tn-anti-uv-lcd-display-fishfinder-backlight-for-night-fishing-turbid-water-reservoir-sea-r-761535.jpg?v=1732853971 Lucky FFCW-1108-1 Wireless Fish Finder Sonar, TN/ Anti-UV LCD Display Fishfinder Backlight for Night Fishing, Turbid Water Reservoir Sea River lake Boat Kayak Ice FFCW - 1108 - 1 Lucky FFCW - 1108 - 1 Wireless Fish Finder Sonar, TN/ Anti - UV LCD Display Fishfinder Backlight for Night Fishing, Turbid Water Reservoir Sea River lake Boat Kayak Ice - Gain Express https://www.gainexpress.com/products/ff-1108-1cla 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ff-1108-1cla-ff-1108-1cla-lucky-100m-328ft-wireless-45m-147ft-wired-sonar-2-in-1-color-fish-finder-attracting-light-sea-night-fishing-900-beam-angl-794831.jpg?v=1732853974 FF-1108-1CLA LUCKY 100M (328ft) Wireless & 45M (147ft) Wired Sonar 2-in-1 Color Fish Finder Attracting Light, Sea Night Fishing 90° Beam Angle Rechargeable FF - 1108 - 1CLA FF - 1108 - 1CLA LUCKY 100M (328ft) Wireless & 45M (147ft) Wired Sonar 2 - in - 1 Color Fish Finder Attracting Light, Sea Night Fishing 90° Beam Angle Rechargeable - Gain Express https://www.gainexpress.com/products/ffw-718la 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ffw-718la-ffw-718la-lucky-wireless-fish-finder-w-attracting-light-lamp-portable-rechargeable-locator-45m-depth-150m-wireless-sonar-sensor-transduce-447601.jpg?v=1732853752 FFW-718LA Lucky Wireless Fish Finder w/ Attracting Light Lamp Portable Rechargeable Locator 45M Depth 150M Wireless Sonar Sensor Transducer Range for Boats Kayak Ice Night Fishing FFW - 718LA FFW - 718LA Lucky Wireless Fish Finder w/ Attracting Light Lamp Portable Rechargeable Locator 45M Depth 150M Wireless Sonar Sensor Transducer Range for Boats Kayak Ice Night Fishing - Gain Express https://www.gainexpress.com/products/phc-244 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-phc-244-110v-phc-244-2-in-1-digital-ph-orp-redox-controller-with-separate-relays-replaceable-electrode-bnc-type-probe-water-quality-monitor-tester--212865.jpg?v=1732854160 PHC-244 2 in 1 Digital pH & ORP Redox Controller with Separate Relays Replaceable Electrode BNC Type Probe Water Quality Monitor Tester for Aquarium Hydroponics Tank 14.00pH / 1999mV with Calibration Solution PHC - 244_110V PHC - 244 2 in 1 Digital pH & ORP Redox Controller with Separate Relays Replaceable Electrode BNC Type Probe Water Quality Monitor Tester for Aquarium Hydroponics Tank 14.00pH / 1999mV with Calibration Solution - Gain Express https://www.gainexpress.com/products/837_2 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-837-2-837-2-salinity-temp-meter-pen-type-salt-water-quality-tester-atc-nacl-9999-ppm-1000ppt-10-095-108-sg-measurement-units-3-in-1-checker-for-sal-914490.jpg?v=1735489259 837-2 Salinity & Temp Meter Pen Type Salt Water Quality Tester ATC NaCl, 9999 ppm / 100.0ppt/ 10% / 0.95-1.08 SG Measurement Units 3-in-1 Checker for Saltwater Aquarium Pond Food Pool Cooking Seawater 837 - 2 Salinity & Temp Meter Pen Type Salt Water Quality Tester ATC NaCl, 9999 ppm / 100.0ppt/ 10% / 0.95 - 1.08 SG Measurement Units 3 - in - 1 Checker for Saltwater Aquarium Pond Food Pool Cooking Seawater - Gain Express https://www.gainexpress.com/products/wqm-242 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-wqm-242-us-wqm-242-5-in-1-water-quality-multi-parameter-ph-ec-cf-tds-ppm-temperature-test-meter-backlight-wall-mountable-rechargeable-continuous-mo-639241.jpg?v=1735489891 WQM-242 5-in-1 Water Quality Multi-parameter PH EC CF TDS (ppm) Temperature Test Meter Backlight, Wall-mountable Rechargeable Continuous Monitor Tester, Aquariums Hydroponics Pool Fish Tank Pond Drinking WQM - 242 5 - in - 1 Water Quality Multi - parameter PH EC CF TDS (ppm) Temperature Test Meter Backlight, Wall - mountable Rechargeable Continuous Monitor Tester, Aquariums Hydroponics Pool Fish Tank Pond Drinking - Gain Express https://www.gainexpress.com/products/wqm-241 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-wqm-241-wqm-241-ph-ec-temperature-meter-atc-3-in-1-waterproof-pen-type-water-quality-combo-multi-parameter-tester-monitor-analyzer-acidometer-test--952204.jpg?v=1735489865 WQM-241 pH / EC / Temperature Meter ATC 3 in 1 Waterproof Pen Type Water Quality Combo Multi-Parameter Tester Monitor Analyzer Acidometer , Test Kit for Aquariums Hydroponics Pool Spa Drinking Purity WQM - 241 pH / EC / Temperature Meter ATC 3 in 1 Waterproof Pen Type Water Quality Combo Multi - Parameter Tester Monitor Analyzer Acidometer , Test Kit for Aquariums Hydroponics Pool Spa Drinking Purity - Gain Express https://www.gainexpress.com/products/ph-014 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ph-014-blk-ph-014-pocket-size-00-140-ph-meter-digital-water-quality-tester-pen-type-atc-01ph-measurement-portable-kit-for-household-drinking-water--600662.jpg?v=1732854241 PH-014 Pocket Size 0.0-14.0 pH Meter, Digital Water Quality Tester Pen Type ATC ±0.1pH Measurement, Portable Kit for Household Drinking Water, Swimming Pools, Aquariums, Hydroponics PH - 014_BLK PH - 014 Pocket Size 0.0 - 14.0 pH Meter, Digital Water Quality Tester Pen Type ATC ±0.1pH Measurement, Portable Kit for Household Drinking Water, Swimming Pools, Aquariums, Hydroponics - Gain Express https://www.gainexpress.com/products/gm-247 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gm-247-gm-247-gloss-surface-reflection-01-200-gu-tester-meter-200-450-750-rehargeable-reflectometer-triple-angles-degree-glossmeter-for-ceramics-fi-149564.jpg?v=1735489620 GM-247 Gloss Surface Reflection 0.1-200 GU Tester Meter 20° 45° 75° Rehargeable Reflectometer Triple Angles Degree Glossmeter for Ceramics Films Textiles Anodised Aluminium Paper Printed Material GM - 247 Gloss Surface Reflection 0.1 - 200 GU Tester Meter 20° 45° 75° Rehargeable Reflectometer Triple Angles Degree Glossmeter for Ceramics Films Textiles Anodised Aluminium Paper Printed Material - Gain Express https://www.gainexpress.com/products/wm-206 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-wm-206-wm-206-whiteness-meter-leucometer-0120-white-color-degree-tester-measuring-instrument-for-paint-paper-powder-salt-flour-handheld-portable-di-444153.jpg?v=1735489835 WM-206 Whiteness Meter Leucometer 0~120 White Color Degree Tester Measuring Instrument for Paint Paper Powder Salt Flour, Handheld Portable Digital with Aluminum Case WM - 206 Whiteness Meter Leucometer 0~120 White Color Degree Tester Measuring Instrument for Paint Paper Powder Salt Flour, Handheld Portable Digital with Aluminum Case - Gain Express https://www.gainexpress.com/products/hm-6580 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-hm-6580-hm-6580-leeb-hardness-meter-tester-170-960-hld-metals-durometer-d-type-impact-measurement-gauge-test-kit-hrb-hrc-hv-hb-hs-hl-for-solid-alum-751059.jpg?v=1732854230 HM-6580 Leeb Hardness Meter Tester 170-960 HLD Metals Durometer D Type Impact Measurement Gauge Test Kit (HRB HRC HV HB HS HL) for Solid Aluminum Steel Iron Bronze 9 Materials HM - 6580 HM - 6580 Leeb Hardness Meter Tester 170 - 960 HLD Metals Durometer D Type Impact Measurement Gauge Test Kit (HRB HRC HV HB HS HL) for Solid Aluminum Steel Iron Bronze 9 Materials - Gain Express https://www.gainexpress.com/products/hm-6560 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-hm-6560-hm-6560-leeb-hardness-meter-tester-200-900-hld-metals-durometer-d-type-impact-measurement-gauge-test-kit-hrb-hrc-hv-hb-hs-hl-for-solid-alum-496973.jpg?v=1732853910 HM-6560 Leeb Hardness Meter Tester 200-900 HLD Metals Durometer D Type Impact Measurement Gauge Test Kit (HRB HRC HV HB HS HL) for Solid Aluminum Steel Iron Bronze 9 Materials HM - 6560 HM - 6560 Leeb Hardness Meter Tester 200 - 900 HLD Metals Durometer D Type Impact Measurement Gauge Test Kit (HRB HRC HV HB HS HL) for Solid Aluminum Steel Iron Bronze 9 Materials - Gain Express https://www.gainexpress.com/products/vm-6370t 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-vm-6370t-vm-6370t-vibration-tachometer-meter-piezoelectric-sensor-contact-photo-rotation-rate-tester-vibrometer-rpm-rmin-frequency-hz-rotating-mach-395005.jpg?v=1735489876 VM-6370T Vibration Tachometer Meter Piezoelectric Sensor Contact Photo Rotation Rate Tester Vibrometer, RPM (r/min) Frequency Hz Rotating Machinery Imbalance Velocity Acceleration Displacement VM - 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207_1K FM - 207 Digital Force Meter Gauge Pull & Push Magnitude Test Tester Newtonmeter Newton N / kg / lb / g Measurement, for Manufacturing, Electronics, Building Hardware, Textile, Auto Parts - Gain Express https://www.gainexpress.com/products/tds-240 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-tds-240-tds-240-3-in-1-ph-tds-temperature-meter-combo-water-quality-tester-digital-pen-type-with-atc-0001400ph-01999mglppm-for-laboratories-hydropo-654027.jpg?v=1735489876 TDS-240 3-in-1 pH / TDS / Temperature Meter Combo Water Quality Tester Digital Pen-Type with ATC 0.00~14.00pH 0~1999mg/L(ppm) for Laboratories, Hydroponics, Aquariums, Pool, Spa TDS - 240 3 - in - 1 pH / TDS / Temperature Meter Combo Water Quality Tester Digital Pen - Type with ATC 0.00~14.00pH 0~1999mg/L(ppm) for Laboratories, Hydroponics, Aquariums, Pool, Spa - Gain Express https://www.gainexpress.com/products/the-220 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-the-220-915597.jpg?v=1735489885 THE-220 THE - 220 - Gain Express https://www.gainexpress.com/products/wqm-243 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-wqm-243-us-wqm-243-6-in-1-professional-multi-parameter-ph-orp-redox-ec-cf-tds-ppm-temperature-combo-testing-meter-digital-multi-function-water-qual-567834.jpg?v=1735489889 WQM-243 6 in 1 Professional Multi-parameter pH/ ORP Redox/ EC/ CF/ TDS PPM/ Temperature Combo Testing Meter, Digital Multi-function Water Quality Monitor Tester WQM - 243 6 in 1 Professional Multi - parameter pH/ ORP Redox/ EC/ CF/ TDS PPM/ Temperature Combo Testing Meter, Digital Multi - function Water Quality Monitor Tester - Gain Express https://www.gainexpress.com/products/wtm-1200 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-wtm-1200-wtm-1200-wireless-window-tint-meter-0-100-handheld-visible-uv-infrared-light-transmittance-transmission-measuring-gauge-tester-transparenc-439435.jpg?v=1735489919 WTM-1200 Wireless Window Tint Meter 0-100% Handheld Visible/ UV/ Infrared Light Transmittance Transmission Measuring Gauge Tester Transparency, for Car Automobile Glass Plastics Water Drinks WTM - 1200 Wireless Window Tint Meter 0 - 100% Handheld Visible/ UV/ Infrared Light Transmittance Transmission Measuring Gauge Tester Transparency, for Car Automobile Glass Plastics Water Drinks - Gain Express https://www.gainexpress.com/products/sqm-257s_gloves 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/1-gainexpress-gain-express-soil-meter-SQM-257S-preview_997.jpg?v=1565146984 SQM-257S_GLOVE 3-in-1 Soil pH Moisture Light Meter Tester Probe Sensor, Gardening Plants Growth Watering Quality Monitoring Acidity Test Tool Kits for Garden Farm Lawn Household Indoor Outdoor Sqm-257S_Glove 3-In-1 Soil Ph Moisture Light Meter Tester Probe Sensor Gardening Plants Growth https://www.gainexpress.com/products/sqm-256 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-sqm-256g-sqm-256-soil-ph-moisture-light-meter-3-way-tester-kit-gardening-acidity-probe-test-tool-plants-growth-watering-quality-monitoring-checker--588409.jpg?v=1735489730 SQM-256 Soil pH, Moisture & Light Meter 3 Way Tester Kit, Gardening Acidity Probe Test Tool Plants Growth Watering Quality Monitoring Checker for Garden Farm Lawn Household Indoor Outdoor SQM - 256 Soil pH, Moisture & Light Meter 3 Way Tester Kit, Gardening Acidity Probe Test Tool Plants Growth Watering Quality Monitoring Checker for Garden Farm Lawn Household Indoor Outdoor - Gain Express https://www.gainexpress.com/products/sqm-258 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-sqm-258-sqm-258-pointer-type-soil-ph-meter-tester-sensor-with-detachable-probe-gardening-quality-monitoring-acidity-test-tool-kits-for-gardener-ind-229639.jpg?v=1732854352 SQM-258 Pointer Type Soil pH Meter Tester Sensor with Detachable Probe, Gardening Quality Monitoring Acidity Test Tool Kits for Gardener Indoor Outdoor Garden Farm Lawn Household SQM - 258 SQM - 258 Pointer Type Soil pH Meter Tester Sensor with Detachable Probe, Gardening Quality Monitoring Acidity Test Tool Kits for Gardener Indoor Outdoor Garden Farm Lawn Household - Gain Express https://www.gainexpress.com/products/sqm-257 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/1-gainexpress-gain-express-soil-meter-SQM-257G-preview1_729db353-7cb4-41d3-bf1a-78353050ea9d.jpg?v=1620631546 SQM-257 3-in-1 Soil pH, Moisture & Light Meter Tester Probe Sensor, Gardening Plants Growth Watering Quality Monitoring Acidity Test Tool Kits for Garden Farm Lawn Household Indoor Outdoor Sqm-257 3-In-1 Soil Ph Moisture & Light Meter Tester Probe Sensor Gardening Plants Growth Watering https://www.gainexpress.com/products/phm-239 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-phm-239-phm-239-ph-meter-3600-flexible-display-angle-0001400ph-portable-pocket-size-water-quality-tester-twist-turnable-monitor-kit-set-for-househo-942828.jpg?v=1735489669 PHM-239 PH Meter 360° Flexible Display Angle, 0.00~14.00pH Portable Pocket Size Water Quality Tester Twist & Turnable Monitor Kit Set for Household Drinking Water, Hydroponics Aquariums Pools PHM - 239 PH Meter 360° Flexible Display Angle, 0.00~14.00pH Portable Pocket Size Water Quality Tester Twist & Turnable Monitor Kit Set for Household Drinking Water, Hydroponics Aquariums Pools - Gain Express https://www.gainexpress.com/products/phm-245 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-phm-245-us-phm-245-ph-temperature-2-in-1-continuous-monitor-meter-w-backlight-replaceable-electrode-dual-display-0001400ph-0c-0f-water-quality-moni-916754.jpg?v=1732854230 PHM-245 PH & Temperature 2-in-1 Continuous Monitor Meter w/ Backlight Replaceable Electrode, Dual Display 0.00~14.00pH °C/ °F Water Quality Monitoring Kit, for Aquariums Hydroponics Pools Tanks Spa PHM - 245_US PHM - 245 PH & Temperature 2 - in - 1 Continuous Monitor Meter w/ Backlight Replaceable Electrode, Dual Display 0.00~14.00pH °C/ °F Water Quality Monitoring Kit, for Aquariums Hydroponics Pools Tanks Spa - Gain Express https://www.gainexpress.com/products/ecm-226 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ecm-226-ecm-226-3-in-1-conductivity-ec-ph-temperature-meter-multi-parameter-tester-digital-pen-atc-water-quality-test-analyze-calibration-kit-001ms-979871.jpg?v=1732853752 ECM-226 3-in-1 Conductivity EC & pH & Temperature Meter Multi-parameter Tester Digital Pen ATC, Water Quality Test Analyze Calibration Kit, 0.01mS/cm Resolution, Aquarium Hydroponics Tank Pool Lab Spa ECM - 226 ECM - 226 3 - in - 1 Conductivity EC & pH & Temperature Meter Multi - parameter Tester Digital Pen ATC, Water Quality Test Analyze Calibration Kit, 0.01mS/cm Resolution, Aquarium Hydroponics Tank Pool Lab Spa - Gain Express https://www.gainexpress.com/products/phm-224_ph 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-phm-224-ph-phm-224-ph-3-in-1-orp-redox-ph-temperature-combo-meter-tester-w-extra-electrode-pen-type-atc-19991999mv-000-1400ph-0500c-water-quality-a-430890.jpg?v=1732854126 PHM-224_PH 3-in-1 ORP Redox PH Temperature Combo Meter Tester w/ EXTRA Electrode, Pen Type ATC -1999~1999mV 0.00-14.00pH 0~50°C, Water Quality Aquarium Tank Swimming Pool Lab Spa Hydroponics PHM - 224_PH PHM - 224_PH 3 - in - 1 ORP Redox PH Temperature Combo Meter Tester w/ EXTRA Electrode, Pen Type ATC - 1999~1999mV 0.00 - 14.00pH 0~50°C, Water Quality Aquarium Tank Swimming Pool Lab Spa Hydroponics - Gain Express https://www.gainexpress.com/products/sns-phm-224 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-sns-phm-224-sns-phm-224-ph-replacement-electrode-for-pen-type-combo-meter-phm-224-tds-240-ecm-226-510921.jpg?v=1735489737 SNS-PHM-224 PH Replacement Electrode for Pen Type Combo Meter PHM-224 TDS-240 ECM-226 SNS - PHM - 224 PH Replacement Electrode for Pen Type Combo Meter PHM - 224 TDS - 240 ECM - 226 - Gain Express https://www.gainexpress.com/products/ctm-259 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/1-gainexpress-gain-express-thickness-meter-CTM-259-preview_310.jpg?v=1565061565 CTM-259 Fe/ NF Coating Thickness Gauge Tester, 0~1300um 0~51.2mil Attribute Auto Detection & Substrate Paint Non-destructive Measurement, for Car Automotive Inspection Chemical Metal Processing CTM-259 Fe/ NF Coating Thickness Gauge Tester, 0~1300um 0~51.2mil Attribute Auto Detection & Substrate Paint Non-destructive Measurement, for Car Automotive Inspection Chemical Metal Processing - Gain Express https://www.gainexpress.com/products/btt-2880 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-btt-2880-btt-2880-digital-belt-tension-meter-gauge-077-kg-0120-lb-0750-newtons-0144-seems-tape-cable-wire-replacement-adjustment-maintenance-automo-750072.jpg?v=1732853787 BTT-2880 Digital Belt Tension Meter Gauge, 0~77 kg / 0~120 lb / 0~750 Newtons / 0~144 Seems, Tape Cable Wire Replacement Adjustment Maintenance, Automotive Motorcycle Manufacturing Industry BTT - 2880 BTT - 2880 Digital Belt Tension Meter Gauge, 0~77 kg / 0~120 lb / 0~750 Newtons / 0~144 Seems, Tape Cable Wire Replacement Adjustment Maintenance, Automotive Motorcycle Manufacturing Industry - Gain Express https://www.gainexpress.com/products/cm-1210a 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-cm-1210a-cm-1210a-coating-thickness-meter-gauge-f-nf-magnetic-induction-eddy-current-02000mm-080mil-non-magnetic-non-conductive-material-thick-meas-213382.jpg?v=1732853669 CM-1210A Coating Thickness Meter Gauge F & NF, Magnetic Induction Eddy Current 0~2000μm 0~80mil Non-Magnetic Non-conductive Material Thick Measure Tester, Substrate Auto Detection CM - 1210A CM - 1210A Coating Thickness Meter Gauge F & NF, Magnetic Induction Eddy Current 0~2000μm 0~80mil Non - Magnetic Non - conductive Material Thick Measure Tester, Substrate Auto Detection - Gain Express https://www.gainexpress.com/products/cm-1210b 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-cm-1210b-cm-1210b-coating-thickness-meter-gauge-f-nf-99-memories-max-min-avg-magnetic-induction-eddy-current-02000mm-080mil-non-magnetic-non-conduc-646526.jpg?v=1732853787 CM-1210B Coating Thickness Meter Gauge F & NF 99 Memories Max Min Avg, Magnetic Induction Eddy Current 0~2000μm 0~80mil Non-Magnetic Non-conductive Material Thick Measure Tester, Substrate Auto Detection CM - 1210B CM - 1210B Coating Thickness Meter Gauge F & NF 99 Memories Max Min Avg, Magnetic Induction Eddy Current 0~2000μm 0~80mil Non - Magnetic Non - conductive Material Thick Measure Tester, Substrate Auto Detection - Gain Express https://www.gainexpress.com/products/cm-2000 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-cm-2000-cm-2000-wet-film-combs-252032um-microns-micrometer-180-mil-dual-scale-wet-paint-coating-thickness-step-notched-gauge-rectangular-style-962231.jpg?v=1732853629 CM-2000 Wet Film Combs 25~2032µm Microns Micrometer / 1~80 Mil Dual Scale, Wet Paint Coating Thickness Step Notched Gauge, Rectangular Style CM - 2000 CM - 2000 Wet Film Combs 25~2032µm Microns Micrometer / 1~80 Mil Dual Scale, Wet Paint Coating Thickness Step Notched Gauge, Rectangular Style - Gain Express https://www.gainexpress.com/products/cm-8000 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-cm-8000-cm-8000-wet-film-combs-253000um-microns-micrometer-1118-mil-dual-scale-wet-paint-coating-thickness-step-notched-gauge-hexagonal-style-949790.jpg?v=1732853781 CM-8000 Wet Film Combs 25~3000µm Microns Micrometer / 1~118 Mil Dual Scale, Wet Paint Coating Thickness Step Notched Gauge, Hexagonal Style CM - 8000 CM - 8000 Wet Film Combs 25~3000µm Microns Micrometer / 1~118 Mil Dual Scale, Wet Paint Coating Thickness Step Notched Gauge, Hexagonal Style - Gain Express https://www.gainexpress.com/products/dt-2859 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-dt-2859-dt-2859-landtek-photo-laser-non-contact-tachometer-0599999-rpm-linear-velocity-meter-surface-mmin-ftmin-speed-tester-for-automobile-motor-f-317395.jpg?v=1732853786 DT-2859 Landtek Photo Laser Non Contact Tachometer 0.5~99,999 RPM Linear Velocity Meter Surface m/Min, ft/Min Speed Tester for Automobile Motor Fan Washing Machine DT - 2859 DT - 2859 Landtek Photo Laser Non Contact Tachometer 0.5~99,999 RPM Linear Velocity Meter Surface m/Min, ft/Min Speed Tester for Automobile Motor Fan Washing Machine - Gain Express https://www.gainexpress.com/products/ged-2600p 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ged-2600p-ged-2600p-digital-gasoline-engine-non-contact-tachometer-5009999-rmin-rotate-speed-tester-meter-for-motor-machine-fan-chemical-fiber-auto-830183.jpg?v=1732853907 GED-2600P Digital Gasoline Engine Non Contact Tachometer 50.0~9,999 r/min Rotate Speed Tester Meter for Motor Machine Fan Chemical Fiber Automobile Airplane Steamer GED - 2600P GED - 2600P Digital Gasoline Engine Non Contact Tachometer 50.0~9,999 r/min Rotate Speed Tester Meter for Motor Machine Fan Chemical Fiber Automobile Airplane Steamer - Gain Express https://www.gainexpress.com/products/hm-934-1 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-hm-934-1-hm-934-1-digital-indentation-barcol-hardness-tester-0100-hba-portable-meter-brinell-25150hb-for-aluminum-glass-steel-processing-industry-539424.jpg?v=1732854157 HM-934-1 Digital Indentation Barcol Hardness Tester 0~100 HBa Portable Meter Brinell 25~150HB for Aluminum Glass Steel Processing Industry HM - 934 - 1 HM - 934 - 1 Digital Indentation Barcol Hardness Tester 0~100 HBa Portable Meter Brinell 25~150HB for Aluminum Glass Steel Processing Industry - Gain Express https://www.gainexpress.com/products/ht-1292 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ht-1292-ht-1292-digital-humidity-temperature-meter-tester-indoor-outdoor-1095rh-temp-1060-0c-141400f-wet-bulb-temp-1060oc-handheld-air-thermo-hygro-989026.jpg?v=1732853871 HT-1292 Digital Humidity Temperature Meter Tester Indoor Outdoor, 10~95%RH Temp -10~60 °C (14~140°F) Wet Bulb Temp -10~60ºC, Handheld Air Thermo-Hygrometer Hygometer Thermometer, Max Min Hold HT - 1292 HT - 1292 Digital Humidity Temperature Meter Tester Indoor Outdoor, 10~95%RH Temp - 10~60 °C (14~140°F) Wet Bulb Temp - 10~60ºC, Handheld Air Thermo - Hygrometer Hygometer Thermometer, Max Min Hold - Gain Express https://www.gainexpress.com/products/ht-6510n 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ht-6510n-ht-6510n-digital-screen-tension-meter-tester-740-ncm-wire-steel-mesh-frame-tense-tautness-stretch-force-newton-measurement-for-printing-st-932942.jpg?v=1732853872 HT-6510N Digital Screen Tension Meter Tester 7~40 N/cm, Wire Steel Mesh Frame Tense Tautness Stretch Force Newton Measurement, for Printing Stencil Production Quality Assurance HT - 6510N HT - 6510N Digital Screen Tension Meter Tester 7~40 N/cm, Wire Steel Mesh Frame Tense Tautness Stretch Force Newton Measurement, for Printing Stencil Production Quality Assurance - Gain Express https://www.gainexpress.com/products/sqm-255g 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-sqm-255g-sqm-255g-soil-moisture-meter-tester-probe-sensor-green-gardening-plants-growth-watering-quality-monitoring-test-tool-kits-for-garden-farm--383043.jpg?v=1735489722 SQM-255G Soil Moisture Meter Tester Probe Sensor (Green), Gardening Plants Growth Watering Quality Monitoring Test Tool Kits for Garden Farm Lawn Household Indoor Outdoor SQM - 255G Soil Moisture Meter Tester Probe Sensor (Green), Gardening Plants Growth Watering Quality Monitoring Test Tool Kits for Garden Farm Lawn Household Indoor Outdoor - Gain Express https://www.gainexpress.com/products/agf-260 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-agf-260-agf-260-digital-level-box-protractor-angle-finder-bevel-gauge-magnetic-base-with-tilt-direction-indicator-3600-4-x-900-inclinometer-cube-me-782096.jpg?v=1732853633 AGF-260 Digital Level Box Protractor Angle Finder Bevel Gauge Magnetic Base with Tilt Direction Indicator, 360° (4 x 90°) Inclinometer Cube Meter Measurement Tool for Woodworking Installation AGF - 260 AGF - 260 Digital Level Box Protractor Angle Finder Bevel Gauge Magnetic Base with Tilt Direction Indicator, 360° (4 x 90°) Inclinometer Cube Meter Measurement Tool for Woodworking Installation - Gain Express https://www.gainexpress.com/products/sqm-256_glove 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/1-gainexpress-gain-express-soil-meter-SQM-256S-preview1_586.jpg?v=1565148377 SQM-256_GLOVE Soil pH, Moisture & Light Meter 3 Way Tester Kit (Silver or Green with FREE Gloves), Gardening Acidity Probe Test Tool Plants Watering Quality Monitoring Checker for Garden Farm Lawn Household Indoor Outdoor Sqm-256_Glove Soil Ph Moisture & Light Meter 3 Way Tester Kit (Silver Or Green With Free Gloves) https://www.gainexpress.com/products/gem-250 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gem-250-gem-250-10x-magnification-jewelery-loupe-205mm-triplet-lens-achromatic-optical-glass-metal-aluminum-body-black-frame-hexagonal-design-kit-s-435164.jpg?v=1732853873 GEM-250 10x Magnification Jewelery Loupe, 20.5mm Triplet Lens Achromatic Optical Glass Metal (Aluminum) Body Black Frame Hexagonal Design Kit Set Jewelry Pocket Magnifying Tool GEM - 250 GEM - 250 10x Magnification Jewelery Loupe, 20.5mm Triplet Lens Achromatic Optical Glass Metal (Aluminum) Body Black Frame Hexagonal Design Kit Set Jewelry Pocket Magnifying Tool - Gain Express https://www.gainexpress.com/products/gem-251 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gem-251-gem-251-15x-jewelry-loupe-magnifier-205mm-triplet-lens-achromatic-optical-glass-magnifying-tool-metal-aluminum-body-hexagonal-design-kit-se-989287.jpg?v=1732854228 GEM-251 15x Jewelry Loupe Magnifier 20.5mm Triplet Lens Achromatic Optical Glass Magnifying Tool Metal (Aluminum) Body Hexagonal Design Kit Set Magnification Loupe Black Frame GEM - 251 GEM - 251 15x Jewelry Loupe Magnifier 20.5mm Triplet Lens Achromatic Optical Glass Magnifying Tool Metal (Aluminum) Body Hexagonal Design Kit Set Magnification Loupe Black Frame - Gain Express https://www.gainexpress.com/products/gem-252 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gem-252-fba-gem-252-20x-magnification-205mm-jeweler-gem-loupe-triplet-lens-magnifier-jewelry-optical-glass-great-professional-hobbyist-stamp-coin-m-792741.jpg?v=1732853908 GEM-252 20x Magnification 20.5mm Jeweler Gem Loupe Triplet Lens Magnifier Jewelry Optical Glass Great Professional Hobbyist Stamp & Coin Mechanics Machinists GEM - 252_FBA GEM - 252 20x Magnification 20.5mm Jeweler Gem Loupe Triplet Lens Magnifier Jewelry Optical Glass Great Professional Hobbyist Stamp & Coin Mechanics Machinists - Gain Express https://www.gainexpress.com/products/gem-253 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gem-253-gem-253-30x-jeweler-205mm-gem-loupe-magnifiers-jewelry-triplet-lens-optical-glass-magnification-for-professionals-hobbyists-stamp-coin-mech-542469.jpg?v=1732853872 GEM-253 30x Jeweler 20.5mm Gem Loupe Magnifiers Jewelry Triplet Lens Optical Glass Magnification For Professionals Hobbyists Stamp & Coin Mechanics Machinists GEM - 253 GEM - 253 30x Jeweler 20.5mm Gem Loupe Magnifiers Jewelry Triplet Lens Optical Glass Magnification For Professionals Hobbyists Stamp & Coin Mechanics Machinists - Gain Express https://www.gainexpress.com/products/gem-246 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gem-246-gem-246-10x-21mm-loupe-jeweler-magnifier-led-uv-light-triplet-lens-magnifying-gem-optical-tool-achromatic-aplanatic-foldaway-pocket-black-f-404670.jpg?v=1732853874 GEM-246 10x 21mm Loupe Jeweler Magnifier LED UV Light Triplet Lens Magnifying Gem Optical Tool Achromatic Aplanatic Foldaway Pocket Black Frame for Inspecting Diamonds Gemstones Watches Print GEM - 246 GEM - 246 10x 21mm Loupe Jeweler Magnifier LED UV Light Triplet Lens Magnifying Gem Optical Tool Achromatic Aplanatic Foldaway Pocket Black Frame for Inspecting Diamonds Gemstones Watches Print - Gain Express https://www.gainexpress.com/products/gem-247 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gem-247-gem-247-15x-21mm-optic-glass-loupe-6-led-uv-light-magnifier-jeweler-foldaway-pocket-black-frame-triplet-lens-magnifying-gem-jeweler-mechani-601662.jpg?v=1735489469 GEM-247 15x 21mm Optic Glass Loupe 6 LED & UV Light Magnifier Jeweler Foldaway Pocket Black Frame Triplet Lens Magnifying Gem Jeweler Mechanics Photographer Hobbyist Watchmaker GEM - 247 15x 21mm Optic Glass Loupe 6 LED & UV Light Magnifier Jeweler Foldaway Pocket Black Frame Triplet Lens Magnifying Gem Jeweler Mechanics Photographer Hobbyist Watchmaker - Gain Express https://www.gainexpress.com/products/gem-248 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gem-248-gem-248-20x-loupe-21mm-optical-glass-magnifier-6-led-light-uv-light-mini-magnification-jeweller-black-frame-triplet-lens-jeweler-mechanics--329528.jpg?v=1732853971 GEM-248 20x Loupe 21mm Optical Glass Magnifier 6 LED Light & UV Light Mini Magnification Jeweller Black Frame Triplet Lens Jeweler Mechanics Photographer Hobbyist Coin Collector Arts & Crafts Machinist GEM - 248 GEM - 248 20x Loupe 21mm Optical Glass Magnifier 6 LED Light & UV Light Mini Magnification Jeweller Black Frame Triplet Lens Jeweler Mechanics Photographer Hobbyist Coin Collector Arts & Crafts Machinist - Gain Express https://www.gainexpress.com/products/gem-249 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gem-249-gem-249-30x-magnification-jewelry-gem-loupe-with-uv-6-led-light-21mm-optical-glass-triplet-magnifiers-lens-portable-handheld-magnifying-too-712591.jpg?v=1732853910 GEM-249 30x Magnification Jewelry Gem Loupe with UV & 6 LED Light, 21mm Optical Glass Triplet Magnifiers Lens Portable Handheld Magnifying Tool Jeweller Stamp & Coin Collectors Foldaway And Black Frame Design Metal Body GEM - 249 GEM - 249 30x Magnification Jewelry Gem Loupe with UV & 6 LED Light, 21mm Optical Glass Triplet Magnifiers Lens Portable Handheld Magnifying Tool Jeweller Stamp & Coin Collectors Foldaway And Black Frame Design Metal Body - Gain Express https://www.gainexpress.com/products/ms-120 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ms-120-ms-120-landtek-digital-mechanics-engine-stethoscope-with-headphone-2-separate-sensor-probe-machine-faults-detector-1010k-hz-diagnostic-tool--478349.jpg?v=1732854122 MS-120 Landtek Digital Mechanic's Engine Stethoscope with Headphone & 2 Separate Sensor Probe, Machine Faults Detector 10~10K Hz, Diagnostic Tool for Sound Noise Detection Automotive Automobile Car Set Kit MS - 120 MS - 120 Landtek Digital Mechanic's Engine Stethoscope with Headphone & 2 Separate Sensor Probe, Machine Faults Detector 10~10K Hz, Diagnostic Tool for Sound Noise Detection Automotive Automobile Car Set Kit - Gain Express https://www.gainexpress.com/products/srt-6200s 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-srt-6200s-srt-6200s-digital-surface-roughness-tester-meter-gauge-profilometer-w-separate-sensor-lcd-display-data-memory-10um-ra-rq-rz-rt-4-paramete-915216.jpg?v=1732854355 SRT-6200S Digital Surface Roughness Tester Meter Gauge Profilometer w/ Separate Sensor, LCD Display Data Memory 10um Ra Rq Rz Rt 4 Parameters SRT - 6200S SRT - 6200S Digital Surface Roughness Tester Meter Gauge Profilometer w/ Separate Sensor, LCD Display Data Memory 10um Ra Rq Rz Rt 4 Parameters - Gain Express https://www.gainexpress.com/products/reb-32kmwatc 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-reb-32kmwatc-reb-32kmwatc-handheld-0-32-brix-refractometer-with-atc-0-1400oe-0-27kmwbabo-oechsle-for-brandy-beer-worth-831547.jpg?v=1732854235 REB-32KMWATC Handheld 0-32% Brix Refractometer with ATC, 0-140°Oe, 0-27KMW/Babo, Oechsle, for brandy, beer worth REB - 32KMWATC REB - 32KMWATC Handheld 0 - 32% Brix Refractometer with ATC, 0 - 140°Oe, 0 - 27KMW/Babo, Oechsle, for brandy, beer worth - Gain Express https://www.gainexpress.com/products/ph-025re 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ph-025re-ph-025re-digital-ph-monitor-meter-atc-01400ph-replaceable-electrode-probe-bnc-water-quality-monitoring-tester-kit-aquarium-hydroponics-spa-574450.jpg?v=1732854122 PH-025RE Digital pH Monitor Meter ATC 0~14.00pH Replaceable Electrode Probe BNC Water Quality Monitoring Tester Kit Aquarium Hydroponics Spa Tank Pool Laboratories Mini Portable PH - 025RE PH - 025RE Digital pH Monitor Meter ATC 0~14.00pH Replaceable Electrode Probe BNC Water Quality Monitoring Tester Kit Aquarium Hydroponics Spa Tank Pool Laboratories Mini Portable - Gain Express https://www.gainexpress.com/products/68022_2p 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/DM-68022_BL-preview_b40962e2-fbde-4529-a972-68998a90acb8.jpg?v=1760001627 68022_2P Digital 2 Channels K-Type Thermometer w/ 4 Thermocouples (Wired & Stainless Steel), -50~1300°C (-58~2372°F) Handheld Desktop High Temperature Kelvin Scale Dual Measurement Meter Sensor https://www.gainexpress.com/products/lx-1010bn 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-lx-1010bn-lx-1010bn-digital-light-meter-luxmeter-0100000-lux-w-selectable-range-x1-x10-x100-handheld-illuminance-tester-sensor-illuminometer-lighti-878887.jpg?v=1732853972 LX-1010BN Digital Light Meter Luxmeter 0~100,000 Lux w/ Selectable Range x1 x10 x100, Handheld Illuminance Tester Sensor Illuminometer Lighting Level Measurement, for Indoor Room Greenhouse Plants Home LX - 1010BN LX - 1010BN Digital Light Meter Luxmeter 0~100,000 Lux w/ Selectable Range x1 x10 x100, Handheld Illuminance Tester Sensor Illuminometer Lighting Level Measurement, for Indoor Room Greenhouse Plants Home - Gain Express https://www.gainexpress.com/products/n04nts300_5m 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/1-gainexpress-gain-express-NTS300_5M-preview_542.jpg?v=1565062069 N04NTS300_5M Industrial Endoscope 5M Cable Borescope Video Inspection HD Camera 4.3" Color LCD Monitor 7.6mm with 16GB SD Card & 1W CREE LED N04Nts300_5M Industrial Endoscope 5M Cable Borescope Video Inspection Hd Camera 4.3 Color Lcd https://www.gainexpress.com/products/ut-40 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ut-40-ut-40-ultrasonic-leak-transmitter-40-khz-frequency-emit-ultra-sonic-wave-air-water-windshield-roofs-pipe-leaks-detection-portable-handy-teste-325319.jpg?v=1735489819 UT-40 Ultrasonic Leak Transmitter, 40 KHz Frequency, Emit Ultra Sonic Wave Air Water Windshield Roofs Pipe Leaks Detection, Portable Handy Tester Tool UT - 40 Ultrasonic Leak Transmitter, 40 KHz Frequency, Emit Ultra Sonic Wave Air Water Windshield Roofs Pipe Leaks Detection, Portable Handy Tester Tool - Gain Express https://www.gainexpress.com/products/vm-213 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-vm-213-vm-213-digital-vibration-meter-tester-piezoelectric-sensor-measuring-acceleration-velocity-and-displacement-for-machinery-quality-control-co-330285.jpg?v=1735489843 VM-213 Digital Vibration Meter Tester Piezoelectric Sensor Measuring Acceleration, Velocity and Displacement for Machinery, Quality Control, Commissioning and Predictive Maintenance Purposes VM - 213 Digital Vibration Meter Tester Piezoelectric Sensor Measuring Acceleration, Velocity and Displacement for Machinery, Quality Control, Commissioning and Predictive Maintenance Purposes - Gain Express https://www.gainexpress.com/products/vm-6380-3 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-vm-6380-3-vm-6380-3-landtek-multi-channel-vibration-meter-piezoelectric-sensor-transducer-10hz10khz-frequency-digital-velocity-acceleration-displac-762028.jpg?v=1735489872 VM-6380-3 Landtek Multi Channel Vibration Meter, Piezoelectric Sensor Transducer 10Hz~10kHz Frequency, Digital Velocity Acceleration Displacement Measurement Gauge VM - 6380 - 3 Landtek Multi Channel Vibration Meter, Piezoelectric Sensor Transducer 10Hz~10kHz Frequency, Digital Velocity Acceleration Displacement Measurement Gauge - Gain Express https://www.gainexpress.com/products/wm-106 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-wm-106-wm-106-digital-whiteness-meter-0-120-portable-leucometer-tester-254-data-memory-handheld-check-for-talcum-powder-textile-plastic-ceramic-ena-695331.jpg?v=1735489832 WM-106 Digital Whiteness Meter 0 ~ 120, Portable Leucometer Tester 254 Data Memory, Handheld Check for Talcum Powder Textile Plastic Ceramic Enamel WM - 106 Digital Whiteness Meter 0 ~ 120, Portable Leucometer Tester 254 Data Memory, Handheld Check for Talcum Powder Textile Plastic Ceramic Enamel - Gain Express https://www.gainexpress.com/products/rha-100atc 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-rha-100atc-rha-100atc-3-in-1-automotive-battery-antifreeze-refractometer-fahrenheit-84320f-ethylene-60320f-propylene-glycol-1100-1400-battery-fluid-454749.jpg?v=1735489668 RHA-100ATC 3-in-1 Automotive Battery Antifreeze Refractometer Fahrenheit, -84~32°F Ethylene/ -60~32°F Propylene Glycol/ 1.100-1.400 Battery Fluids Specific Gravity, Battery Test Cooling Coolant Freezing Point RHA - 100ATC 3 - in - 1 Automotive Battery Antifreeze Refractometer Fahrenheit, - 84~32°F Ethylene/ - 60~32°F Propylene Glycol/ 1.100 - 1.400 Battery Fluids Specific Gravity, Battery Test Cooling Coolant Freezing Point - Gain Express https://www.gainexpress.com/products/tm-1240 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-tm-1240-tm-1240-digital-ultrasonic-thickness-meter-075400mm-for-material-measurement-testing-measuring-tool-tester-gauge-steel-cast-iron-aluminum-r-159016.jpg?v=1735489873 TM-1240 Digital Ultrasonic Thickness Meter 0.75~400mm for Material Measurement, Testing Measuring Tool Tester Gauge Steel Cast Iron Aluminum Red Copper Brass Zinc Quartz Glass PVC Polyethylene TM - 1240 Digital Ultrasonic Thickness Meter 0.75~400mm for Material Measurement, Testing Measuring Tool Tester Gauge Steel Cast Iron Aluminum Red Copper Brass Zinc Quartz Glass PVC Polyethylene - Gain Express https://www.gainexpress.com/products/ff-168d 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ff-168d-ff-168d-lucky-portable-fish-finder-100m-328ft-depth-range-fishfinder-detector-zoom-depth-fish-alarm-ocean-sea-lake-river-fishing-783681.jpg?v=1732853753 FF-168D LUCKY Portable Fish Finder 100m (328ft) Depth Range Fishfinder Detector Zoom Depth Fish Alarm Ocean Sea Lake River Fishing FF - 168D FF - 168D LUCKY Portable Fish Finder 100m (328ft) Depth Range Fishfinder Detector Zoom Depth Fish Alarm Ocean Sea Lake River Fishing - Gain Express https://www.gainexpress.com/products/ff-168lic 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ff-168lic-ff-168lic-lucky-2-in-1-wired-wireless-color-fish-finder-fishfinder-fishing-locator-100m-45m-depth-range-transducer-sonar-sensor-portable--479015.jpg?v=1732853788 FF-168LIC LUCKY 2-in-1 Wired & Wireless Color Fish Finder Fishfinder Fishing Locator, 100m / 45m Depth Range Transducer Sonar Sensor, Portable & Rechargeable FF - 168LIC FF - 168LIC LUCKY 2 - in - 1 Wired & Wireless Color Fish Finder Fishfinder Fishing Locator, 100m / 45m Depth Range Transducer Sonar Sensor, Portable & Rechargeable - Gain Express https://www.gainexpress.com/products/ff-218tpa 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ff-218tpa-ff-218tpa-lucky-fish-finder-color-display-fishfinder-fishing-locator-wireless-sonar-sensor-45m-1476ft-depth-range-shallow-slop-raft-ice-m-171051.jpg?v=1732853786 FF-218TPA LUCKY Fish Finder Color Display Fishfinder Fishing Locator, Wireless Sonar Sensor 45m (147.6ft) Depth Range, Shallow Slop Raft Ice Mode Air & Water Temperature Air Pressure FF - 218TPA FF - 218TPA LUCKY Fish Finder Color Display Fishfinder Fishing Locator, Wireless Sonar Sensor 45m (147.6ft) Depth Range, Shallow Slop Raft Ice Mode Air & Water Temperature Air Pressure - Gain Express https://www.gainexpress.com/products/ff-180ar 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ff-180ar-ff-180ar-lucky-underwater-camera-fish-locator-finder-sun-visor-liftable-protective-cover-1200-wide-angle-20m-cable-length-4-ir-led-43-disp-837107.jpg?v=1732853749 FF-180AR LUCKY Underwater Camera Fish Locator Finder Sun-Visor Liftable Protective Cover, 120° Wide Angle 20M Cable Length 4 IR LED 4.3" Display Video & Photo Capture Rechargeable FF - 180AR FF - 180AR LUCKY Underwater Camera Fish Locator Finder Sun - Visor Liftable Protective Cover, 120° Wide Angle 20M Cable Length 4 IR LED 4.3" Display Video & Photo Capture Rechargeable - Gain Express https://www.gainexpress.com/products/ff-180pr 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ff-180pr-ff-180pr-lucky-underwater-camera-fish-locator-finder-1200-wide-angle-20m-cable-length-4-ir-led-43-display-video-photo-capture-rechargeable-941911.jpg?v=1732854355 FF-180PR LUCKY Underwater Camera Fish Locator Finder 120° Wide Angle 20M Cable Length 4 IR LED 4.3" Display Video Photo Capture Rechargeable FF - 180PR FF - 180PR LUCKY Underwater Camera Fish Locator Finder 120° Wide Angle 20M Cable Length 4 IR LED 4.3" Display Video Photo Capture Rechargeable - Gain Express https://www.gainexpress.com/products/rea-503eatc 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-rea-503eatc-rea-503eatc-automotive-refractometer-ethylene-glycol-6000c-and-0100-battery-fluid-110140kgl-737583.jpg?v=1732854227 REA-503EATC Automotive Refractometer, Ethylene glycol: -60~0°C and 0~100%, Battery Fluid 1.10~1.40kg/l REA - 503EATC REA - 503EATC Automotive Refractometer, Ethylene glycol: - 60~0°C and 0~100%, Battery Fluid 1.10~1.40kg/l - Gain Express https://www.gainexpress.com/products/wa-60a 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-wa-60a-wa-60a-landtek-water-activity-meter-food-water-activity-measurement-portable-digital-tester-286233.jpg?v=1735489888 WA-60A Landtek Water Activity Meter Food Water Activity Measurement Portable Digital Tester WA - 60A Landtek Water Activity Meter Food Water Activity Measurement Portable Digital Tester - Gain Express https://www.gainexpress.com/products/the-261 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-the-261-the-261-non-contact-digital-laser-infrared-ir-forehead-gun-thermometer-electronic-tester-for-kids-baby-adult-human-body-surface-temperature-770243.jpg?v=1735489833 THE-261 Non-contact Digital Laser Infrared IR Forehead Gun Thermometer Electronic Tester for Kids Baby Adult Human Body & Surface Temperature Tri-color Backlight with Fever Alarm THE - 261 Non - contact Digital Laser Infrared IR Forehead Gun Thermometer Electronic Tester for Kids Baby Adult Human Body & Surface Temperature Tri - color Backlight with Fever Alarm - Gain Express https://www.gainexpress.com/products/the-262 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-the-262-the-262-lasergrip-non-contact-digital-laser-infrared-gun-celsius-and-fahrenheit-thermometer-ir-instant-read-temperature-with-adjustable-emi-782869.jpg?v=1735489839 THE-262 Lasergrip Non-Contact Digital Laser Infrared Gun Celsius and Fahrenheit Thermometer IR Instant Read Temperature with Adjustable Emissivity & Scanning Function THE - 262 Lasergrip Non - Contact Digital Laser Infrared Gun Celsius and Fahrenheit Thermometer IR Instant Read Temperature with Adjustable Emissivity & Scanning Function - Gain Express https://www.gainexpress.com/products/the-264 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-the-264-the-264-lasergrip-non-contact-digital-laser-infrared-gun-thermometer-50750-581382-ir-instant-read-temperature-with-adjustable-emissivity-sc-810197.jpg?v=1735489822 THE-264 Lasergrip Non-Contact Digital Laser Infrared Gun Thermometer -50~750℃ (-58~1382℉) IR Instant Read Temperature with Adjustable Emissivity & Scanning Function THE - 264 Lasergrip Non - Contact Digital Laser Infrared Gun Thermometer - 50~750℃ ( - 58~1382℉) IR Instant Read Temperature with Adjustable Emissivity & Scanning Function - Gain Express https://www.gainexpress.com/products/lkd-265 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-lkd-265-lkd-265-lasergrip-2-in-1-thermal-leak-detector-non-contact-infrared-celsius-and-fahrenheit-thermometer-with-tricolor-backlight-indicator-an-788528.jpg?v=1732853973 LKD-265 Lasergrip 2-in 1 Thermal Leak Detector Non-contact Infrared Celsius and Fahrenheit Thermometer with Tricolor Backlight Indicator and Audible Alarm LKD - 265 LKD - 265 Lasergrip 2 - in 1 Thermal Leak Detector Non - contact Infrared Celsius and Fahrenheit Thermometer with Tricolor Backlight Indicator and Audible Alarm - Gain Express https://www.gainexpress.com/products/the-266 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-the-266-the-266-lasergrip-non-contact-digital-laser-infrared-gun-celsius-and-fahrenheit-high-temperature-301500-222732-thermometer-ir-instant-read--201582.jpg?v=1735489842 THE-266 Lasergrip Non-Contact Digital Laser Infrared Gun Celsius and Fahrenheit High Temperature -30℃~1500℃ (-22℉~2732℉) Thermometer IR Instant Read Temperature Adjustable Emissivity and 80 sets Data Storage THE - 266 Lasergrip Non - Contact Digital Laser Infrared Gun Celsius and Fahrenheit High Temperature - 30℃~1500℃ ( - 22℉~2732℉) Thermometer IR Instant Read Temperature Adjustable Emissivity and 80 sets Data Storage - Gain Express https://www.gainexpress.com/products/ane-271 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ane-271-ane-271-digital-handheld-anemometer-wind-speed-meter-measure-temperature-air-velocity-wind-chill-gauge-with-data-recording-for-windsurfing--963251.jpg?v=1732853671 ANE-271 Digital Handheld Anemometer Wind Speed Meter Measure Temperature Air Velocity Wind Chill Gauge with Data Recording for Windsurfing Kite flying Sailing Surfing Fishing ANE - 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277 MAN - 277 Digital Manometer Digital Air Pressure Meter Differential Air Pressure Gauge Dual Port HVAC Gas Pressure Tester Handheld Portable Tool - Gain Express https://www.gainexpress.com/products/slm-267 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-slm-267-slm-267-decibel-meter-sound-level-tester-30130dba-noise-volume-measuring-and-monitoring-instrument-digital-lcd-display-with-backlight-profe-475041.jpg?v=1735489727 SLM-267 Decibel Meter Sound Level Tester 30~130dBA Noise Volume Measuring and Monitoring Instrument Digital LCD display with Backlight Professional Handheld Device SLM - 267 Decibel Meter Sound Level Tester 30~130dBA Noise Volume Measuring and Monitoring Instrument Digital LCD display with Backlight Professional Handheld Device - Gain Express https://www.gainexpress.com/products/slm-270 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-slm-270-slm-270-digital-audio-decibel-meter-sound-level-tester-noise-level-volume-measuring-instrument-30130dba-monitor-4700-data-storage-self-cali-116126.jpg?v=1735489732 SLM-270 Digital Audio Decibel Meter Sound Level Tester Noise Level Volume Measuring Instrument 30~130dBA Monitor 4700 Data Storage Self-Calibrated A / C Frequency Weighting Tool SLM - 270 Digital Audio Decibel Meter Sound Level Tester Noise Level Volume Measuring Instrument 30~130dBA Monitor 4700 Data Storage Self - Calibrated A / C Frequency Weighting Tool - Gain Express https://www.gainexpress.com/products/slm-269 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-slm-269-slm-269-sound-level-meter-audio-decibel-noise-tester-30130dba-digital-volume-measuring-instrument-a-c-frequency-weighting-tool-factory-pre--944790.jpg?v=1735489728 SLM-269 Sound Level Meter Audio Decibel Noise Tester 30~130dBA Digital Volume Measuring Instrument A / C Frequency Weighting Tool Factory Pre-calibrated SLM - 269 Sound Level Meter Audio Decibel Noise Tester 30~130dBA Digital Volume Measuring Instrument A / C Frequency Weighting Tool Factory Pre - calibrated - Gain Express https://www.gainexpress.com/products/ane-272 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ane-272-ane-272-digital-vane-anemometer-handheld-wind-speed-temperature-meter-air-velocity-wind-chill-tester-gauge-with-maxminavgcurrent-measuremen-126922.jpg?v=1732853789 ANE-272 Digital Vane Anemometer Handheld Wind Speed Temperature Meter Air Velocity Wind Chill Tester Gauge with MAX/MIN/AVG/Current Measurement Backlight ANE - 272 ANE - 272 Digital Vane Anemometer Handheld Wind Speed Temperature Meter Air Velocity Wind Chill Tester Gauge with MAX/MIN/AVG/Current Measurement Backlight - Gain Express https://www.gainexpress.com/products/ane-273 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ane-273-ane-273-professional-anemometer-datalogger-wind-speed-velocity-meter-air-flow-cfm-cmm-air-volume-wind-direction-temperature-humidity-measur-154205.jpg?v=1732853675 ANE-273 Professional Anemometer Datalogger Wind Speed Velocity Meter Air Flow CFM CMM Air Volume Wind Direction Temperature Humidity Measurement Digital Tester Gauge with MAX / MIN / AVG Value, Data Hold, and Backlight ANE - 273 ANE - 273 Professional Anemometer Datalogger Wind Speed Velocity Meter Air Flow CFM CMM Air Volume Wind Direction Temperature Humidity Measurement Digital Tester Gauge with MAX / MIN / AVG Value, Data Hold, and Backlight - Gain Express https://www.gainexpress.com/products/ctm-275 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ctm-275-ctm-275-professional-thickness-meter-gauge-digital-hd-colored-display-car-paint-coating-tester-data-storage-screen-rotation-rechargeable-ba-720202.jpg?v=1732853639 CTM-275 Professional Thickness Meter Gauge Digital HD Colored Display Car Paint Coating Tester Data Storage Screen Rotation Rechargeable Battery Automotive Tool 0~1300um/51mil Measurement Range CTM - 275 CTM - 275 Professional Thickness Meter Gauge Digital HD Colored Display Car Paint Coating Tester Data Storage Screen Rotation Rechargeable Battery Automotive Tool 0~1300um/51mil Measurement Range - Gain Express https://www.gainexpress.com/products/ctm-276 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ctm-276-ctm-276-professional-thickness-meter-gauge-digital-hd-colored-display-car-paint-coating-tester-01500um059mil015mm-measurement-range-data-st-898650.jpg?v=1732853789 CTM-276 Professional Thickness Meter Gauge Digital HD Colored Display Car Paint Coating Tester 0~1500um/0~59mil/0~1.5mm Measurement Range Data Storage Automatic Screen Rotation Automotive Tool CTM - 276 CTM - 276 Professional Thickness Meter Gauge Digital HD Colored Display Car Paint Coating Tester 0~1500um/0~59mil/0~1.5mm Measurement Range Data Storage Automatic Screen Rotation Automotive Tool - Gain Express https://www.gainexpress.com/products/837-4 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/837-3-pentype-tds-salinity-temperature-tester-water-quality-meter-atc-multiple-units-ppt-ppm-s-g-c-f-digital-tool-for-saltwater-monitoring-testing-ip65-601.jpg?v=1755158068 837-3 Pentype TDS / Salinity / Temperature Tester Water Quality Meter ATC Multiple Units (ppt, ppm, S.G., %, °C, °F) Digital Tool for Saltwater Monitoring & Testing IP65 Waterproof Housing 837-3 Pentype TDS / Salinity / Temperature Tester Water Quality Meter ATC Multiple Units (ppt ppm S.G. % °C °F) Digital https://www.gainexpress.com/products/az87786 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-az87786-az87786-wbgt-wet-bulb-globe-temperature-heat-stress-meter-datalogger-air-globe-temperature-humidity-tester-with-backlight-indicator-audible-910694.jpg?v=1732853792 AZ87786 WBGT (Wet Bulb Globe Temperature) Heat Stress Meter Datalogger Air Globe Temperature Humidity Tester with Backlight Indicator Audible Alarm Data Logging Function Handheld or Mount in Tripod AZ87786 AZ87786 WBGT (Wet Bulb Globe Temperature) Heat Stress Meter Datalogger Air Globe Temperature Humidity Tester with Backlight Indicator Audible Alarm Data Logging Function Handheld or Mount in Tripod - Gain Express https://www.gainexpress.com/products/az87797 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/az87797-wbgt-sd-card-datalogger-temperature-humidity-meter-desktop-wallmount-logger-with-8gb-sdhc-led-audible-alarm-real-time-logging-data-loggers-864.jpg?v=1754986605 AZ87797 WBGT SD Card Datalogger Temperature Humidity Meter Desktop / Wallmount Logger with 8GB SDHC Card LED Audible Alarm Real time Logging AZ87797 AZ87797 WBGT SD Card Datalogger Temperature Humidity Meter Desktop / Wallmount Logger with 8GB SDHC Card LED Audible Alarm Real time Logging - Gain Express https://www.gainexpress.com/products/vbt-281 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-vbt-281-vbt-281-digital-vibration-meter-piezoelectric-vibrometer-gauge-colored-flip-display-acceleration-velocity-and-displacement-measurement-with-624965.jpg?v=1735489826 VBT-281 Digital Vibration Meter Piezoelectric Vibrometer Gauge Colored Flip Display Acceleration Velocity and Displacement Measurement with Short / Long Probe Portable Symmetrical Shape VBT - 281 Digital Vibration Meter Piezoelectric Vibrometer Gauge Colored Flip Display Acceleration Velocity and Displacement Measurement with Short / Long Probe Portable Symmetrical Shape - Gain Express https://www.gainexpress.com/products/emf-280 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-emf-280-emf-280-digital-emf-tester-electric-and-magnetic-field-radiation-detector-temperature-measure-with-color-screen-display-and-rechargeable-ba-206177.jpg?v=1732853873 EMF-280 Digital EMF Tester Electric and Magnetic Field Radiation Detector Temperature Measure with Color-screen Display and Rechargeable Battery Handheld Tool EMF - 280 EMF - 280 Digital EMF Tester Electric and Magnetic Field Radiation Detector Temperature Measure with Color - screen Display and Rechargeable Battery Handheld Tool - Gain Express https://www.gainexpress.com/products/std-279 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-std-279-std-279-stud-finder-digital-wall-scanner-4-in-1-detector-wood-live-ac-wire-metal-stud-detection-sensor-with-indicator-light-and-sound-warni-530635.jpg?v=1735489852 STD-279 Stud Finder Digital Wall Scanner 4 in 1 Detector Wood Live AC Wire Metal Stud Detection Sensor with Indicator Light and Sound Warning STD - 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190 Multi - Field EMF Meter RF Gauss Meter Electromagnetic Electric RF Field Strength Tester with Warning Indicator - Gain Express https://www.gainexpress.com/products/1397 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-sa-1397-sa-1397-digital-pen-type-salinity-meter-1999ppt-salinometer-salt-analyzer-tester-296554.jpg?v=1735489731 SA-1397 Digital Pen type Salinity Meter 199.9ppt Salinometer Salt Analyzer Tester SA - 1397 Digital Pen type Salinity Meter 199.9ppt Salinometer Salt Analyzer Tester - Gain Express https://www.gainexpress.com/products/tm-197 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-tm-197-tm-197-ac-dc-gaussmeter-magnetic-field-strength-meter-teslameter-magnetometer-3000mt-30000-gauss-353059.jpg?v=1735489823 TM-197 AC / DC Gaussmeter Magnetic Field Strength Meter Teslameter Magnetometer 3000mT (30000 Gauss) TM - 197 AC / DC Gaussmeter Magnetic Field Strength Meter Teslameter Magnetometer 3000mT (30000 Gauss) - Gain Express https://www.gainexpress.com/products/837-3_bag 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-837-3-bag-837-3-bag-pentype-tds-salinity-temperature-tester-water-quality-meter-atc-multiple-units-ppt-ppm-sg-0c-0f-digital-tool-for-saltwater-moni-907984.jpg?v=1735489253 837-3_bag Pentype TDS / Salinity / Temperature Tester Water Quality Meter ATC Multiple Units (ppt, ppm, S.G., %, °C, °F) Digital Tool for Saltwater Monitoring & Testing IP65 Waterproof Housing 837 - 3_bag Pentype TDS / Salinity / Temperature Tester Water Quality Meter ATC Multiple Units (ppt, ppm, S.G., %, °C, °F) Digital Tool for Saltwater Monitoring & Testing IP65 Waterproof Housing - Gain Express https://www.gainexpress.com/products/tm-209 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-tm-209-tm-209-digital-led-light-lux-fc-footcandle-meter-luminous-intensity-measurement-luxmeter-400000-lux-40000-fc-measure-handheld-illuminance-te-553535.jpg?v=1735489823 TM-209 Digital LED Light LUX / FC (Footcandle) Meter Luminous Intensity Measurement Luxmeter 400000 Lux 40000 FC Measure Handheld Illuminance Tester TM - 209 Digital LED Light LUX / FC (Footcandle) Meter Luminous Intensity Measurement Luxmeter 400000 Lux 40000 FC Measure Handheld Illuminance Tester - Gain Express https://www.gainexpress.com/products/tm-747d 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-tm-747d-tm-747d-digital-4-channel-k-j-t-e-r-s-n-type-thermocouple-thermometer-datalogger-16800-data-logging-t1t2-t3t4-input-terminal-data-logger-596352.jpg?v=1735489836 TM-747D Digital 4-Channel K /J/ T / E/ R / S/ N Type Thermocouple Thermometer Datalogger 16,800 Data Logging T1/T2, T3/T4 Input Terminal Data Logger TM - 747D Digital 4 - Channel K /J/ T / E/ R / S/ N Type Thermocouple Thermometer Datalogger 16,800 Data Logging T1/T2, T3/T4 Input Terminal Data Logger - Gain Express https://www.gainexpress.com/products/tm-6002 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-tm-6002-tm-6002-potable-digital-battery-impedance-tester-multiple-display-144596.jpg?v=1735489888 TM-6002 Potable Digital Battery Impedance Tester Multiple Display TM - 6002 Potable Digital Battery Impedance Tester Multiple Display - Gain Express https://www.gainexpress.com/products/the-291 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-the-291-the-291-non-contact-forehead-lr-thermometer-infrared-human-body-surface-temperature-measurement-colored-lcd-backlight-alarm-function-and-da-169819.jpg?v=1735489858 THE-291 Non-Contact Forehead lR Thermometer Infrared Human Body Surface Temperature Measurement Colored LCD Backlight, Alarm Function and Data Storage THE - 291 Non - Contact Forehead lR Thermometer Infrared Human Body Surface Temperature Measurement Colored LCD Backlight, Alarm Function and Data Storage - Gain Express https://www.gainexpress.com/products/the-292 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-the-292-the-292-non-contact-ir-forehead-thermometer-human-body-and-object-temperature-meter-color-lcd-fever-indicator-one-sec-quick-response-754494.jpg?v=1735489854 THE-292 Non Contact IR Forehead Thermometer Human Body and Object Temperature Meter Color LCD Fever Indicator, One Sec Quick Response THE - 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Gain Express https://www.gainexpress.com/products/8694 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-8694-8694-long-glass-tube-pentype-ph-meter-sharp-tip-probe-digital-water-quality-tester-dual-display-with-atc-20120ph-measurement-range-636597.jpg?v=1732853546 8694 Long Glass Tube Pentype pH Meter Sharp Tip Probe Digital Water Quality Tester Dual Display with ATC 2.0~12.0pH Measurement Range 8694 8694 Long Glass Tube Pentype pH Meter Sharp Tip Probe Digital Water Quality Tester Dual Display with ATC 2.0~12.0pH Measurement Range - Gain Express https://www.gainexpress.com/products/88597 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-88597-88597-digital-4-channels-thermometer-ntc-thermistor-probe-sd-card-logger-with-relay-function-data-logging-big-lcd-display-984934.jpg?v=1732853545 88597 Digital 4 Channels Thermometer NTC Thermistor Probe SD Card Logger with Relay Function Data Logging Big LCD Display 88597 88597 Digital 4 Channels Thermometer NTC Thermistor Probe SD Card Logger with Relay Function Data Logging Big LCD Display - Gain Express https://www.gainexpress.com/products/8930b 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-8930b-8930b-compact-sound-level-calibrator-114db-94db-104db-calibration-level-for-12-132mm-microphone-size-sound-level-meters-460685.jpg?v=1732853635 8930B Compact Sound Level Calibrator 114dB / 94dB / 104dB Calibration Level For 1/2" 13.2mm Microphone Size Sound Level Meters 8930B 8930B Compact Sound Level Calibrator 114dB / 94dB / 104dB Calibration Level For 1/2" 13.2mm Microphone Size Sound Level Meters - Gain Express https://www.gainexpress.com/products/fedex-shipping-cost 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-fedex-fedex-shipping-cost-771911.jpg?v=1735489533 FedEx Shipping Cost FedEx Shipping Cost - Gain Express https://www.gainexpress.com/products/wqm-303 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-wqm-303-wqm-303-pentype-multi-paramater-5-in-1-water-quality-tester-ph-tds-ec-temp-salinity-waterproof-digital-meter-research-household-industrial--114651.jpg?v=1735489867 WQM-303 Pentype Multi-Paramater 5-in-1 Water Quality Tester (pH / TDS / EC / Temp / Salinity) Waterproof Digital Meter Research Household Industrial Laboratory Analysis WQM - 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Gain Express https://www.gainexpress.com/products/wkd90 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-wkd90-wkd90-125-90-degree-diagonal-adapter-erect-image-zenith-mirror-prism-metal-and-plastic-for-refracting-telescope-eyepiece-lens-200759.jpg?v=1735489917 WKD90 1.25" 90-Degree Diagonal Adapter Erect Image Zenith Mirror Prism Metal and Plastic for Refracting Telescope Eyepiece Lens WKD90 1.25" 90 - Degree Diagonal Adapter Erect Image Zenith Mirror Prism Metal and Plastic for Refracting Telescope Eyepiece Lens - Gain Express https://www.gainexpress.com/products/aqm-306 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-aqm-306-aqm-306-air-quality-monitor-co2-co-hcho-tvoc-aqi-formaldehyde-detector-rechargeable-accurate-air-gas-tester-for-home-office-and-various-occ-554760.jpg?v=1732853671 AQM-306 Air Quality Monitor CO2 / CO / HCHO / TVOC / AQI Formaldehyde Detector Rechargeable Accurate Air Gas Tester for Home Office and Various Occasion AQM - 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Gain Express https://www.gainexpress.com/products/rm-206 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-rm-206-rm-206-digital-reflectance-meter-0100-range-portable-cryptometer-light-reflectivity-transparency-tester-for-specular-diffuse-surfaces-coatin-735218.jpg?v=1735489742 RM-206 Digital Reflectance Meter 0~100 Range Portable Cryptometer Light Reflectivity Transparency Tester for Specular Diffuse Surfaces Coatings Pigments Plastics Printing Leather Film RM - 206 Digital Reflectance Meter 0~100 Range Portable Cryptometer Light Reflectivity Transparency Tester for Specular Diffuse Surfaces Coatings Pigments Plastics Printing Leather Film - Gain Express https://www.gainexpress.com/products/ph-303 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ph-303-ph-303-2-in-1-digital-ph-orp-controller-electrodes-industrial-type-781956.jpg?v=1735489669 PH-303 2-in-1 Digital pH & ORP Controller + Electrodes Industrial Type PH - 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Gain Express https://www.gainexpress.com/products/e-312 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-e-312-e-312-high-accuracy-ph-electrode-with-calibration-powder-0-14-ph-probe-with-bnc-connector-300cm-cable-for-wide-application-371497.jpg?v=1732853749 E-312 High Accuracy pH Electrode with Calibration Powder, 0-14 pH Probe with BNC Connector & 300cm Cable for Wide Application E - 312 E - 312 High Accuracy pH Electrode with Calibration Powder, 0 - 14 pH Probe with BNC Connector & 300cm Cable for Wide Application - Gain Express https://www.gainexpress.com/products/the-315_2p 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/THE-315_2P_BL-preview.jpg?v=1760002933 THE-315_2P Digital Thermocouple Temperature K Type Thermometer with 4 Probe (Wired & Stainless Steel) Dual Channel High Temperature Kelvin Scale https://www.gainexpress.com/products/7729 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-7729-7729-wall-mount-desktop-stand-indoor-air-quality-monitor-real-time-co2-detector-carbon-dioxide-temperature-humidity-level-with-large-led-scree-821199.jpg?v=1735489266 7729 Wall Mount / Desktop Stand Indoor Air Quality Monitor Real-time CO2 Detector, Carbon Dioxide & Temperature & Humidity Level with Large LED Screen & Visual Color Warning Light Bar and Audible Alarms 7729 Wall Mount / Desktop Stand Indoor Air Quality Monitor Real - 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318 MUL - 318 Professional, 6000 Counts T - RMS Digital Multimeter for Electrical Measurement and Non - contact Voltage Detection, with Probes, Backlight, Flashlight and Protective Case - Gain Express https://www.gainexpress.com/products/agf-320 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-agf-320-agf-320-digital-angle-gauge-electronic-protractor-with-magnetic-base-v-groove-highly-precise-level-box-led-technology-bright-display-sets-a-389789.jpg?v=1732853669 AGF-320 Digital Angle Gauge Electronic Protractor with Magnetic Base V-Groove Highly Precise Level Box LED Technology Bright Display Sets Angle Measurement for Table Saw Carpentry etc AGF - 320 AGF - 320 Digital Angle Gauge Electronic Protractor with Magnetic Base V - Groove Highly Precise Level Box LED Technology Bright Display Sets Angle Measurement for Table Saw Carpentry etc - Gain Express https://www.gainexpress.com/products/agf-321 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-agf-321-agf-321-digital-angle-gauge-electronic-protractor-highly-precise-level-box-with-bubble-level-magnetic-base-angle-measurement-tool-lcd-techn-733202.jpg?v=1735489278 AGF-321 Digital Angle Gauge Electronic Protractor Highly Precise Level Box with Bubble Level Magnetic Base Angle Measurement Tool LCD Technology Bright Display AGF - 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326 Digital Angle Finder Protractor Meter 0 - 225° with Horizontal & Vertical Bubble Level, Backlit Display - Gain Express https://www.gainexpress.com/products/agf-327 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-agf-327-agf-327-4-in-1-multifunctional-digital-angle-finder-protractor-ruler-7inch-190mm-level-tool-with-horizontal-vertical-circular-level-386679.jpg?v=1732853788 AGF-327 4 in 1 Multifunctional Digital Angle Finder Protractor, Ruler (7inch, 190mm) Level Tool with Horizontal Vertical Circular Level AGF - 327 AGF - 327 4 in 1 Multifunctional Digital Angle Finder Protractor, Ruler (7inch, 190mm) Level Tool with Horizontal Vertical Circular Level - Gain Express https://www.gainexpress.com/products/6-041r 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-6-041r-6-041r-digital-angle-finder-level-box-with-magnetic-base-bright-backlight-protractor-inclinometer-self-inverting-display-gauge-678792.jpg?v=1732853141 6-041R Digital Angle Finder Level Box with Magnetic Base Bright Backlight Protractor Inclinometer Self-inverting Display Gauge 6 - 041R 6 - 041R Digital Angle Finder Level Box with Magnetic Base Bright Backlight Protractor Inclinometer Self - inverting Display Gauge - Gain Express https://www.gainexpress.com/products/agf-325 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-agf-325-agf-325-digital-level-box-angle-finder-with-4-magnetic-bases-inclinometer-large-lcd-display-backlight-ebtn-ip54-waterproof-level-807943.jpg?v=1735489239 AGF-325 Digital Level Box Angle Finder with 4 Magnetic Bases Inclinometer Large LCD Display Backlight EBTN IP54 Waterproof Level AGF - 325 Digital Level Box Angle Finder with 4 Magnetic Bases Inclinometer Large LCD Display Backlight EBTN IP54 Waterproof Level - Gain Express https://www.gainexpress.com/products/6-043r 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-6-043r-6-043r-mini-digital-height-depth-gauge-0-80mm-range-with-magnetic-base-self-standing-for-saw-table-woodworking-construction-home-decoration-543398.jpg?v=1732853143 6-043R Mini Digital Height & Depth Gauge 0-80mm Range with Magnetic Base Self Standing For Saw Table Woodworking, Construction, Home Decoration 6 - 043R 6 - 043R Mini Digital Height & Depth Gauge 0 - 80mm Range with Magnetic Base Self Standing For Saw Table Woodworking, Construction, Home Decoration - Gain Express https://www.gainexpress.com/products/sqm-329 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-sqm-329-sqm-329-soil-ph-and-moisture-meter-2-in-1-tester-308mm-long-waterproof-metal-electrode-for-indoor-outdoor-gardens-plants-flowers-farming-513758.jpg?v=1732854353 SQM-329 Soil pH and Moisture Meter 2-in-1 Tester 308mm Long Waterproof Metal Electrode for Indoor & Outdoor Gardens Plants Flowers Farming SQM - 329 SQM - 329 Soil pH and Moisture Meter 2 - in - 1 Tester 308mm Long Waterproof Metal Electrode for Indoor & Outdoor Gardens Plants Flowers Farming - Gain Express https://www.gainexpress.com/products/gam-330 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gam-330-gam-330-radiation-dosimeter-nuclear-medical-beta-gamma-x-ray-detector-tester-metal-nuclear-geiger-counter-with-alarm-179220.jpg?v=1732853970 GAM-330 Radiation Dosimeter Nuclear Medical Beta Gamma X Ray Detector Tester Metal Nuclear Geiger Counter with Alarm GAM - 330 GAM - 330 Radiation Dosimeter Nuclear Medical Beta Gamma X Ray Detector Tester Metal Nuclear Geiger Counter with Alarm - Gain Express https://www.gainexpress.com/products/gam-332 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gam-332-gam-332-digital-nuclear-radiation-detector-dosimeter-geiger-counter-dose-device-monitor-portable-with-dosage-rate-alarm-997769.jpg?v=1732853872 GAM-332 Digital Nuclear Radiation Detector Dosimeter Geiger Counter Dose Device Monitor Portable with Dosage Rate Alarm GAM - 332 GAM - 332 Digital Nuclear Radiation Detector Dosimeter Geiger Counter Dose Device Monitor Portable with Dosage Rate Alarm - Gain Express https://www.gainexpress.com/products/standard-shipping 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-standard-shipping-standard-shipping-587445.jpg?v=1735489737 Standard Shipping Standard Shipping - Gain Express https://www.gainexpress.com/products/man-334 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-man-334-man-334-digital-manometer-portable-air-vacuum-gas-pressure-gauge-meter-12-measurement-units-with-backlight-and-data-storage-function-sing-p-612810.jpg?v=1732853971 MAN-334 Digital Manometer Portable Air Vacuum / Gas Pressure Gauge Meter 12 Measurement Units with Backlight and Data storage Function Sing Pipe or Differential Pressure of 1-2 Pipes Detection MAN - 334 MAN - 334 Digital Manometer Portable Air Vacuum / Gas Pressure Gauge Meter 12 Measurement Units with Backlight and Data storage Function Sing Pipe or Differential Pressure of 1 - 2 Pipes Detection - Gain Express https://www.gainexpress.com/products/ffw-335 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ffw-335-eu-ffw-335-fish-finder-wireless-sonar-sensor-125khz-frequency-45-meters-147-feet-depth-alarm-function-and-large-lcd-display-580087.jpg?v=1732853750 FFW-335 Fish Finder Wireless Sonar Sensor 125kHz Frequency 45 Meters / 147 Feet Depth Alarm Function and Large LCD Display FFW - 335_EU FFW - 335 Fish Finder Wireless Sonar Sensor 125kHz Frequency 45 Meters / 147 Feet Depth Alarm Function and Large LCD Display - Gain Express https://www.gainexpress.com/products/slm-336 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-slm-336-c-slm-336-smart-decibel-meter-large-colored-led-screen-display-sound-level-tester-30db-to-130db-range-temperature-humidity-measurement-348357.jpg?v=1732854352 SLM-336 Smart Decibel Meter Large Colored LED Screen Display Sound Level Tester 30dB to 130dB Range Temperature Humidity Measurement SLM - 336_C SLM - 336 Smart Decibel Meter Large Colored LED Screen Display Sound Level Tester 30dB to 130dB Range Temperature Humidity Measurement - Gain Express https://www.gainexpress.com/products/aqm-338 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-aqm-338-aqm-338-hydrogen-sulfide-detector-h2s-monitor-0100ppm-electrochemical-h2s-sensor-led-alarm-with-lcd-screen-backlight-portable-tester-355179.jpg?v=1732853788 AQM-338 Hydrogen Sulfide Detector H₂S Monitor 0~100ppm Electrochemical H₂S Sensor LED Alarm with LCD Screen Backlight Portable Tester AQM - 338 AQM - 338 Hydrogen Sulfide Detector H₂S Monitor 0~100ppm Electrochemical H₂S Sensor LED Alarm with LCD Screen Backlight Portable Tester - Gain Express https://www.gainexpress.com/products/ozx-1knt24 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ozx-1knt24-eu-ozx-1knt24-ozone-generator-1000mgh-purifier-drinking-water-631677.jpg?v=1732854347 OZX-1KNT24 Ozone Generator 1000mg/h Purifier Drinking Water OZX - 1KNT24_EU OZX - 1KNT24 Ozone Generator 1000mg/h Purifier Drinking Water - Gain Express https://www.gainexpress.com/products/wqm-339 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-wqm-339-wqm-339-7in1-pentype-tester-ph-tds-ec-orp-salinity-sg-temperature-meter-water-tester-for-drinking-water-aquariums-hydroponics-pools-996241.jpg?v=1735489865 WQM-339 7in1 Pentype Tester PH / TDS / EC / ORP / Salinity / S.G. / Temperature Meter Water Tester for Drinking Water, Aquariums, Hydroponics Pools WQM - 339 7in1 Pentype Tester PH / TDS / EC / ORP / Salinity / S.G. / Temperature Meter Water Tester for Drinking Water, Aquariums, Hydroponics Pools - Gain Express https://www.gainexpress.com/products/pcm-340 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-pcm-340-eu-pcm-340-socket-tester-receptacle-detector-with-red-light-test-result-indicator-outlet-tester-for-gfci-standard-3-wire-120v-receptacles-439337.jpg?v=1732854155 PCM-340 Socket Tester Receptacle Detector with Red Light Test Result Indicator Outlet Tester for GFCI / Standard 3-Wire 120V Receptacles PCM - 340_EU PCM - 340 Socket Tester Receptacle Detector with Red Light Test Result Indicator Outlet Tester for GFCI / Standard 3 - Wire 120V Receptacles - Gain Express https://www.gainexpress.com/products/wqm-341 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-wqm-341-us-wqm-341-water-quality-tester-ph-ec-tds-salinity-sg-temperature-with-24hrs-online-app-monitoring-for-fish-tank-aquariums-home-laboratory--440172.jpg?v=1735489868 WQM-341 Water Quality Tester pH / EC / TDS / Salinity / SG / Temperature with 24Hrs Online APP Monitoring for Fish Tank Aquariums Home Laboratory Smart Instrument WQM - 341 Water Quality Tester pH / EC / TDS / Salinity / SG / Temperature with 24Hrs Online APP Monitoring for Fish Tank Aquariums Home Laboratory Smart Instrument - Gain Express https://www.gainexpress.com/products/phc-342 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-phc-342-us-phc-342-digital-ph-orp-controller-with-monitoring-and-dosing-in-water-digital-ph-meter-redox-temp-tester-app-remote-online-monitor-for-s-933005.jpg?v=1732854228 PHC-342 Digital PH / ORP Controller with Monitoring and Dosing in Water Digital pH Meter Redox Temp Tester App Remote Online Monitor for Swimming Pool Aquaculture Fishpond PHC - 342_US PHC - 342 Digital PH / ORP Controller with Monitoring and Dosing in Water Digital pH Meter Redox Temp Tester App Remote Online Monitor for Swimming Pool Aquaculture Fishpond - Gain Express https://www.gainexpress.com/products/aqm-345 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-aqm-345-aqm-345-smart-indoor-air-quality-monitor-co2-meter-tvoc-humidity-temperature-pm25-pm10-with-relay-output-app-control-meter-for-home-offices-760133.jpg?v=1732853749 AQM-345 Smart Indoor Air Quality Monitor CO2 Meter, TVOC, Humidity, Temperature, PM2.5, PM1.0 with Relay Output APP Control Meter for Home Offices Schools AQM - 345 AQM - 345 Smart Indoor Air Quality Monitor CO2 Meter, TVOC, Humidity, Temperature, PM2.5, PM1.0 with Relay Output APP Control Meter for Home Offices Schools - Gain Express https://www.gainexpress.com/products/man-346 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-man-346-man-346-handheld-manometer-dual-differential-digital-gas-pressure-tester-with-backlight-12-selectable-units-air-pressure-gauge-hvac-tester--530984.jpg?v=1735489607 MAN-346 Handheld Manometer Dual Differential Digital Gas Pressure Tester with Backlight 12 Selectable Units Air Pressure Gauge HVAC Tester with Data Storage Function MAN - 346 Handheld Manometer Dual Differential Digital Gas Pressure Tester with Backlight 12 Selectable Units Air Pressure Gauge HVAC Tester with Data Storage Function - Gain Express https://www.gainexpress.com/products/emf-347 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-emf-347-emf-347-handheld-emf-meter-electromagnetic-radiation-detector-5hz35ghz-rechargeable-emf-detector-temperature-tester-for-ghost-hunting-emf-r-654201.jpg?v=1732853785 EMF-347 Handheld EMF Meter Electromagnetic Radiation Detector 5Hz~3.5GHz Rechargeable EMF Detector Temperature Tester for Ghost Hunting EMF Radiation Detecting EMF - 347 EMF - 347 Handheld EMF Meter Electromagnetic Radiation Detector 5Hz~3.5GHz Rechargeable EMF Detector Temperature Tester for Ghost Hunting EMF Radiation Detecting - Gain Express https://www.gainexpress.com/products/pcm-348 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-pcm-348-us-pcm-348-handheld-outlet-tester-polarity-detector-with-led-light-test-result-indicator-socket-tester-power-socket-wiring-tool-for-gfci-tr-380143.jpg?v=1732854154 PCM-348 Handheld Outlet Tester Polarity Detector with LED Light Test Result Indicator Socket Tester Power Socket Wiring Tool for GFCI Trip Current Standard Outlets Receptacles PCM - 348_US PCM - 348 Handheld Outlet Tester Polarity Detector with LED Light Test Result Indicator Socket Tester Power Socket Wiring Tool for GFCI Trip Current Standard Outlets Receptacles - Gain Express https://www.gainexpress.com/products/htm-350a 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-htm-350a-htm-350a-digital-grain-moisture-tester-moisture-meter-water-content-analyzer-with-300mm-118-metal-probe-for-14-grains-wheat-corn-rice-pean-530072.jpg?v=1732853872 HTM-350A Digital Grain Moisture Tester Moisture Meter Water Content Analyzer with 300mm (11.8") Metal Probe for 14 Grains Wheat Corn Rice Peanut Soybean HTM - 350A HTM - 350A Digital Grain Moisture Tester Moisture Meter Water Content Analyzer with 300mm (11.8") Metal Probe for 14 Grains Wheat Corn Rice Peanut Soybean - Gain Express https://www.gainexpress.com/products/ta611b_r 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ta611b-r-ta611b-r-dual-channel-kj-probe-thermocouple-thermometer-t1-t2-channel-temperature-measurement-666173.jpg?v=1735489840 TA611B_R Dual Channel K/J Probe Thermocouple Thermometer T1-T2 Channel Temperature Measurement TA611B_R Dual Channel K/J Probe Thermocouple Thermometer T1 - T2 Channel Temperature Measurement - Gain Express https://www.gainexpress.com/products/mul-351 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-mul-351-digital-insulation-tester-resistance-meter-250v-500v-1000v-output-voltage-750v-ac-voltage-megohmmeter-large-lcd-display-with-blacklight-and-783753.jpg?v=1732854156 MUL-351 Digital Insulation Tester Resistance Meter 250V / 500V / 1000V Output Voltage 750V AC Voltage Megohmmeter Large LCD Display with Blacklight and Buzzer Alarm MUL - 351 Digital Insulation Tester Resistance Meter 250V / 500V / 1000V Output Voltage 750V AC Voltage Megohmmeter Large LCD Display with Blacklight and Buzzer Alarm - Gain Express https://www.gainexpress.com/products/wqm-369 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-wqm-369-wqm-369-bluetooth-6-in-1-floating-monitor-ec-salinity-ph-orp-temperature-chlorine-smart-meter-tester-924666.jpg?v=1735489903 WQM-369 Bluetooth 6 IN 1 Floating Monitor EC / Salinity / pH / ORP / Temperature / Chlorine Smart Meter Tester WQM - 369 Bluetooth 6 IN 1 Floating Monitor EC / Salinity / pH / ORP / Temperature / Chlorine Smart Meter Tester - Gain Express https://www.gainexpress.com/products/cab-349 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-cab-349-cab-349-network-cable-tester-cable-tracer-wire-tracker-professional-networking-device-with-earphone-for-telephone-internetnetwork-cables-208656.jpg?v=1732853668 CAB-349 Network Cable Tester Cable Tracer Wire Tracker Professional Networking Device with Earphone for Telephone, Internet,Network Cables CAB - 349 CAB - 349 Network Cable Tester Cable Tracer Wire Tracker Professional Networking Device with Earphone for Telephone, Internet,Network Cables - Gain Express https://www.gainexpress.com/products/htm-344 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-htm-344-htm-344-pin-type-handheld-moisture-meter-humidity-tester-detector-visual-high-medium-low-alerts-function-for-wood-plaster-drywall-concrete--504131.jpg?v=1732854228 HTM-344 Pin Type Handheld Moisture Meter Humidity Tester Detector Visual High / Medium / Low Alerts Function for Wood, Plaster, Drywall, Concrete Floors, Building Materials HTM - 344 HTM - 344 Pin Type Handheld Moisture Meter Humidity Tester Detector Visual High / Medium / Low Alerts Function for Wood, Plaster, Drywall, Concrete Floors, Building Materials - Gain Express https://www.gainexpress.com/products/the-343 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-the-343-the-343-kj-thermocouple-thermometer-dual-channel-temperature-meter-tester-4-k-type-probes-with-temperature-compensation-and-alarm-function-256509.jpg?v=1735489840 THE-343 K/J Thermocouple Thermometer Dual Channel Temperature Meter Tester 4 K-Type Probes with Temperature Compensation and Alarm Function THE - 343 K/J Thermocouple Thermometer Dual Channel Temperature Meter Tester 4 K - Type Probes with Temperature Compensation and Alarm Function - Gain Express https://www.gainexpress.com/products/white-noise-machine 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-snm-1-white-noise-machine-for-sleeping-baby-kids-portable-sound-machine-with-night-light-usb-rechargeable-34-soothing-noises-auto-off-timer-sleep-m-302103.jpg?v=1735489818 White Noise Machine for Sleeping Baby Kids – Portable Sound Machine with Night Light, USB Rechargeable, 34 Soothing Noises, Auto-Off Timer, Sleep Machine for Adults Babies Lullaby Travel Home White Noise Machine for Sleeping Baby Kids – Portable Sound Machine with Night Light, USB Rechargeable, 34 Soothing Noises, Auto - Off Timer, Sleep Machine for Adults Babies Lullaby Travel Home - Gain Express https://www.gainexpress.com/products/baby-sound-machine 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-snm-2-baby-sound-machine-white-noise-machine-for-baby-sleeping-with-night-light-toddler-sleep-trainer-34-soothing-sounds-timer-app-remote-control-p-777967.jpg?v=1732853632 Baby Sound Machine White Noise Machine for Baby Sleeping with Night Light, Toddler Sleep Trainer 34 Soothing Sounds, Timer, App Remote Control, Personal Sleep Routine SNM - 2 Baby Sound Machine White Noise Machine for Baby Sleeping with Night Light, Toddler Sleep Trainer 34 Soothing Sounds, Timer, App Remote Control, Personal Sleep Routine - Gain Express https://www.gainexpress.com/products/htm-352 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-htm-352-htm-352-data-logger-thermo-hygrometer-thermometer-temperature-and-humidity-datalogging-measurement-25920-groups-of-reading-high-low-alarm-w-973480.jpg?v=1732854227 HTM-352 Data Logger Thermo-hygrometer Thermometer Temperature and Humidity Datalogging Measurement 25,920 Groups of Reading High Low Alarm with PC Software and Calendar Display HTM - 352 HTM - 352 Data Logger Thermo - hygrometer Thermometer Temperature and Humidity Datalogging Measurement 25,920 Groups of Reading High Low Alarm with PC Software and Calendar Display - Gain Express https://www.gainexpress.com/products/neb-1 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-neb-1-portable-mesh-nebulizer-handheld-nebulizer-for-cough-portable-personal-cool-mist-steam-inhaler-for-sinus-cold-kids-adults-use-402349.jpg?v=1732854227 Portable Mesh Nebulizer Handheld Nebulizer for Cough, Portable Personal Cool Mist Steam Inhaler for Sinus Cold, Kids Adults Use NEB - 1 Portable Mesh Nebulizer Handheld Nebulizer for Cough, Portable Personal Cool Mist Steam Inhaler for Sinus Cold, Kids Adults Use - Gain Express https://www.gainexpress.com/products/aqm-353 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-aqm-353-c-aqm-353-smart-wifi-co2-detector-indoor-air-quality-monitor-carbon-dioxide-temperature-and-humidity-meter-with-ndir-sensor-and-air-convect-515396.jpg?v=1735489315 AQM-353 Smart WiFi CO2 Detector Indoor Air Quality Monitor Carbon Dioxide, Temperature, and Humidity Meter with NDIR Sensor and Air Convection Design for Grow Tent, Bedroom, Wine Cellars AQM - 353 Smart WiFi CO2 Detector Indoor Air Quality Monitor Carbon Dioxide, Temperature, and Humidity Meter with NDIR Sensor and Air Convection Design for Grow Tent, Bedroom, Wine Cellars - Gain Express https://www.gainexpress.com/products/tm-223 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-tm-223-tm-223-digital-handheld-uv-ab-light-meter-ultra-violet-uv-detector-290390nm-range-776050.jpg?v=1735489904 TM-223 Digital Handheld UV-AB Light Meter Ultra-Violet (UV) Detector 290~390nm Range TM - 223 Digital Handheld UV - AB Light Meter Ultra - Violet (UV) Detector 290~390nm Range - Gain Express https://www.gainexpress.com/products/wqm-354 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-wqm-354-wqm-354-water-quality-tester-4-in-1-tds-temperature-sg-salt-salinity-meter-with-atc-for-testing-drinking-water-aquaculture-aquarium-hydropo-797344.jpg?v=1735489861 WQM-354 Water Quality Tester 4-in-1 TDS Temperature S.G Salt Salinity Meter with ATC for Testing Drinking Water, Aquaculture, Aquarium, Hydroponics, Swimming Pools WQM - 354 Water Quality Tester 4 - in - 1 TDS Temperature S.G Salt Salinity Meter with ATC for Testing Drinking Water, Aquaculture, Aquarium, Hydroponics, Swimming Pools - Gain Express https://www.gainexpress.com/products/wqm-359 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-wqm-359-wqm-359-multi-parameter-8-in-1-water-test-kit-ph-orp-ec-conductivity-tds-salt-sg-cf-and-temperature-with-online-app-tester-131612.jpg?v=1735489834 WQM-359 Multi-Parameter 8-in-1 Water Test Kit pH. ORP. EC Conductivity, TDS, Salt, S.G., CF, and Temperature with Online APP Tester WQM - 359 Multi - Parameter 8 - in - 1 Water Test Kit pH. ORP. EC Conductivity, TDS, Salt, S.G., CF, and Temperature with Online APP Tester - Gain Express https://www.gainexpress.com/products/replacement-remote-sensor 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-sns-103-replacement-remote-sensor-for-wireless-weather-station-temperature-humidity-temperature-tester-120371.jpg?v=1735489676 Replacement Remote Sensor for Wireless Weather Station Temperature Humidity Temperature Tester Replacement Remote Sensor for Wireless Weather Station Temperature Humidity Temperature Tester - Gain Express https://www.gainexpress.com/products/mll-362 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-mll-362-mll-362-multifunction-magnifier-double-lens-10x-and-25x-magnification-with-acdc-power-5led-and-2uv-light-90mm-optical-lens-handheld-or-desk-523206.jpg?v=1732853968 MLL-362 Multifunction Magnifier Double Lens 10x and 25x Magnification with AC/DC Power 5LED and 2UV Light 90mm Optical Lens Handheld or Desktop Used MLL - 362 MLL - 362 Multifunction Magnifier Double Lens 10x and 25x Magnification with AC/DC Power 5LED and 2UV Light 90mm Optical Lens Handheld or Desktop Used - Gain Express https://www.gainexpress.com/products/agf-364 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-agf-364-agf-364-foldable-angle-finder-spirit-level-ruler-28-inch-multi-angle-measure-with-magnet-1800-precise-angle-measurement-woodworking-carpent-503249.jpg?v=1735489279 AGF-364 Foldable Angle Finder Spirit Level Ruler 28-Inch Multi-Angle Measure with Magnet 180° Precise Angle Measurement Woodworking, Carpenters Fabricators Tool AGF - 364 Foldable Angle Finder Spirit Level Ruler 28 - Inch Multi - Angle Measure with Magnet 180° Precise Angle Measurement Woodworking, Carpenters Fabricators Tool - Gain Express https://www.gainexpress.com/products/e-366 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-e-366-e-366-replaceable-orp-redox-electrode-50-ohm-bnc-type-connector-for-orp-meter-tester-monitor-controller-20002000mv-measure-with-200cm-long-ca-579390.jpg?v=1732853783 E-366 Replaceable ORP REDOX Electrode 50 OHM BNC Type Connector for ORP Meter Tester Monitor Controller -2000~2000mV Measure with 200cm Long Cable E - 366 E - 366 Replaceable ORP REDOX Electrode 50 OHM BNC Type Connector for ORP Meter Tester Monitor Controller - 2000~2000mV Measure with 200cm Long Cable - Gain Express https://www.gainexpress.com/products/e-367 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-e-367-e-367-ph-electrode-probe-bnc-connector-200cm-long-cable-for-ph-meter-monitor-controller-test-sensor-replaceable-for-aquarium-hydroponics-plan-667620.jpg?v=1732853745 E-367 pH Electrode Probe BNC Connector 200cm Long Cable for PH Meter Monitor Controller Test Sensor, Replaceable for Aquarium Hydroponics Plant Pool Spa E - 367 E - 367 pH Electrode Probe BNC Connector 200cm Long Cable for PH Meter Monitor Controller Test Sensor, Replaceable for Aquarium Hydroponics Plant Pool Spa - Gain Express https://www.gainexpress.com/products/par-355 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-par-355-par-355-light-par-meter-advanced-quantum-sensor-measure-grow-light-intensity-lux-meter-ppfd-tester-for-indoor-and-outdoor-plant-photosynthe-633541.jpg?v=1732854227 PAR-355 Light PAR Meter Advanced Quantum Sensor Measure Grow Light Intensity Lux Meter PPFD Tester for Indoor and Outdoor Plant Photosynthetic Activity PAR - 355 PAR - 355 Light PAR Meter Advanced Quantum Sensor Measure Grow Light Intensity Lux Meter PPFD Tester for Indoor and Outdoor Plant Photosynthetic Activity - Gain Express https://www.gainexpress.com/products/mul-363 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-mul-363-mul-363-non-contact-ac-voltage-detector-dual-range-ncv-tester-12v-1000v-48v-1000v-live-and-null-wire-detection-electrical-tool-breakpoint-f-283637.jpg?v=1732853970 MUL-363 Non-contact AC Voltage Detector Dual Range NCV Tester 12V-1000V / 48V-1000V Live and Null Wire Detection Electrical Tool Breakpoint Finder MUL - 363 MUL - 363 Non - contact AC Voltage Detector Dual Range NCV Tester 12V - 1000V / 48V - 1000V Live and Null Wire Detection Electrical Tool Breakpoint Finder - Gain Express https://www.gainexpress.com/products/7730 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/7730-smart-co2-carbon-dioxide-indoor-air-quality-monitor-temperature-humidity-measurement-for-bedroom-close-rooms-offices-classroom-meters-928.jpg?v=1755156744 7730 Smart CO2 Carbon Dioxide Indoor Air Quality Monitor Temperature Humidity Measurement for Bedroom Close Rooms Offices Classroom 7730 Smart CO2 Carbon Dioxide Indoor Air Quality Monitor Temperature Humidity Measurement for Bedroom Close Rooms https://www.gainexpress.com/products/mul-361 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-mul-361-mul-361-digital-6-in-1-ac-multi-function-monitor-ac-voltage-and-current-frequency-factor-active-power-electricity-digital-colored-screen-di-725247.jpg?v=1735489640 MUL-361 Digital 6-in-1 AC Multi-Function Monitor AC Voltage and Current Frequency Factor Active Power Electricity Digital Colored Screen Display MUL - 361 Digital 6 - in - 1 AC Multi - Function Monitor AC Voltage and Current Frequency Factor Active Power Electricity Digital Colored Screen Display - Gain Express https://www.gainexpress.com/products/lkd-360 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-lkd-360-lkd-360-combustible-gas-leak-detector-gas-leakage-sniffer-methane-lpg-lng-fuel-sewer-gas-alcohol-gasoline-flammable-gases-375167.jpg?v=1732853969 LKD-360 Combustible Gas Leak Detector Gas Leakage Sniffer Methane, LPG, LNG, Fuel, Sewer Gas. Alcohol, Gasoline Flammable Gases LKD - 360 LKD - 360 Combustible Gas Leak Detector Gas Leakage Sniffer Methane, LPG, LNG, Fuel, Sewer Gas. Alcohol, Gasoline Flammable Gases - Gain Express https://www.gainexpress.com/products/aqm-356 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-aqm-356-us-aqm-356-co2-controller-monitor-auto-detect-day-night-carbon-dioxide-co2-meter-with-15ft-remote-dual-beam-ndir-sensor-for-greenhouse-grow-485320.jpg?v=1732853672 AQM-356 CO2 Controller & Monitor Auto Detect Day Night Carbon Dioxide CO2 Meter with 15ft Remote Dual Beam NDIR Sensor for Greenhouse, Grow Rooms, Hydroponics Rooms AQM - 356_US AQM - 356 CO2 Controller & Monitor Auto Detect Day Night Carbon Dioxide CO2 Meter with 15ft Remote Dual Beam NDIR Sensor for Greenhouse, Grow Rooms, Hydroponics Rooms - Gain Express https://www.gainexpress.com/products/the-368 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-the-368-the-368-smart-meat-thermometer-with-bluetooth-up-to-30-meters-9842ft-wireless-range-for-oven-grill-kitchen-bbq-rotisserie-ringing-or-vibrat-546902.jpg?v=1735489824 THE-368 Smart Meat Thermometer with Bluetooth up to 30 meters (98.42ft) Wireless Range for Oven, Grill, Kitchen, BBQ, Rotisserie Ringing or Vibrating Alarm IP67 Waterproof Grade THE - 368 Smart Meat Thermometer with Bluetooth up to 30 meters (98.42ft) Wireless Range for Oven, Grill, Kitchen, BBQ, Rotisserie Ringing or Vibrating Alarm IP67 Waterproof Grade - Gain Express https://www.gainexpress.com/products/snsvm-6361 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/products/SNS-VM6360-preview1.jpg?v=1675925775 SNS-VM6360 Probe for Vibration Meter VM-6360 https://www.gainexpress.com/products/tc-8100 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-tc-8100-tc-8100-digital-handheld-dust-particle-counter-pm25-pm10-aqi-tester-data-logging-function-up-to-999-set-556475.jpg?v=1735489875 TC-8100 Digital Handheld Dust Particle Counter PM2.5, PM10 AQI Tester Data Logging Function up to 999 Set TC - 8100 Digital Handheld Dust Particle Counter PM2.5, PM10 AQI Tester Data Logging Function up to 999 Set - Gain Express https://www.gainexpress.com/products/the-372 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-the-372-the-372-wireless-meat-thermometer-for-remote-monitoring-bluetooth-meat-thermometer-digital-cooking-thermometer-with-165ft-wireless-range-fo-422854.jpg?v=1735489850 THE-372 Wireless Meat Thermometer for Remote Monitoring - Bluetooth Meat Thermometer Digital Cooking Thermometer with 165ft Wireless Range for Kitchen, BBQ, Oven, Smoker, Grill, and Rotisserie THE - 372 Wireless Meat Thermometer for Remote Monitoring - Bluetooth Meat Thermometer Digital Cooking Thermometer with 165ft Wireless Range for Kitchen, BBQ, Oven, Smoker, Grill, and Rotisserie - Gain Express https://www.gainexpress.com/products/bat-376 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-bat-376-bat-376-digital-battery-capacity-tester-volt-checker-load-analyzer-display-check-aaa-aa-c-d-9v-37v-15v-button-cell-household-batteries-univ-490502.jpg?v=1732854227 BAT-376 Digital Battery Capacity Tester Volt Checker Load Analyzer Display Check AAA AA C D 9V 3.7V 1.5V Button Cell Household Batteries Universal Tester BAT - 376 BAT - 376 Digital Battery Capacity Tester Volt Checker Load Analyzer Display Check AAA AA C D 9V 3.7V 1.5V Button Cell Household Batteries Universal Tester - Gain Express https://www.gainexpress.com/products/gem-375 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gem-375-gem-375-scale-loupe-magnifier-10x-magnification-led-and-uv-illumination-magnifying-glass-for-jeweler-gemstone-coins-and-stamp-collector-wat-513068.jpg?v=1732854227 GEM-375 Scale Loupe Magnifier 10x Magnification LED and UV Illumination Magnifying Glass for Jeweler, Gemstone, Coins and Stamp Collector, Watch Repair GEM - 375 GEM - 375 Scale Loupe Magnifier 10x Magnification LED and UV Illumination Magnifying Glass for Jeweler, Gemstone, Coins and Stamp Collector, Watch Repair - Gain Express https://www.gainexpress.com/products/aqm-374 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-aqm-374-aqm-374-portable-hydrogen-sulfide-h2s-gas-detector-1500-record-alarm-events-with-audible-visual-vibration-alarm-function-451418.jpg?v=1732853668 AQM-374 Portable Hydrogen Sulfide (H₂S) Gas Detector 1500 Record Alarm Events with Audible, Visual, Vibration Alarm Function AQM - 374 AQM - 374 Portable Hydrogen Sulfide (H₂S) Gas Detector 1500 Record Alarm Events with Audible, Visual, Vibration Alarm Function - Gain Express https://www.gainexpress.com/products/tl205 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-tl205-tl205-digital-sound-level-meter-130db-decibel-tester-auto-ranging-ac-weighting-with-lcd-backlight-850884.jpg?v=1735489865 TL205 Digital Sound Level Meter 130dB Decibel Tester Auto Ranging A/C Weighting with LCD Backlight TL205 Digital Sound Level Meter 130dB Decibel Tester Auto Ranging A/C Weighting with LCD Backlight - Gain Express https://www.gainexpress.com/products/lux-331 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-lux-331-lux-331-digital-light-lux-meter-lux-footcandle-fc-illuminance-tester-200000lux-20000fc-716180.jpg?v=1732854228 LUX-331 Digital Light / Lux Meter LUX Footcandle FC Illuminance Tester 200000Lux / 20000Fc LUX - 331 LUX - 331 Digital Light / 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Quality Long-Lasting Battery for Car Lecture Interview Meeting Class https://www.gainexpress.com/products/fit-381 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-fit-381-fit-381-professional-fuel-injector-tester-diy-diagnosis-tool-kit-automotive-gasoline-injector-tester-for-identifying-stuck-leaking-and-burn-737444.jpg?v=1732854227 FIT-381 Professional Fuel Injector Tester DIY Diagnosis Tool Kit Automotive Gasoline Injector Tester for Identifying Stuck, Leaking, and Burnt-Out Injectors, with 4 Pulse Modes Diagnostic Tool FIT - 381 FIT - 381 Professional Fuel Injector Tester DIY Diagnosis Tool Kit Automotive Gasoline Injector Tester for Identifying Stuck, Leaking, and Burnt - Out Injectors, with 4 Pulse Modes Diagnostic Tool - Gain Express https://www.gainexpress.com/products/dy003 2026-05-06T09:51:27+08:00 daily 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Alarm - Gain Express https://www.gainexpress.com/products/dom-383 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-dom-383-dom-383-digital-rechargeable-do-meter-dissolved-oxygen-tester-with-floating-probe-long-cable-electrode-atc-298953.jpg?v=1732854229 DOM-383 Digital Rechargeable DO Meter Dissolved Oxygen Tester with Floating Probe Long Cable Electrode, ATC DOM - 383 DOM - 383 Digital Rechargeable DO Meter Dissolved Oxygen Tester with Floating Probe Long Cable Electrode, ATC - Gain Express https://www.gainexpress.com/products/par-380 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-par-380-par-380-quantum-par-meter-photo-synthetically-active-radiation-ppfd-tester-for-plant-lighting-horticulture-research-study-of-indoor-and-out-860426.jpg?v=1732854230 PAR-380 Quantum PAR Meter Photo Synthetically Active Radiation PPFD Tester for Plant Lighting Horticulture, Research Study of Indoor and Outdoor 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Portable 9 in 1 Indoor Air Quality Meter CO2 Monitor Formaldehyde Detector VOC Sensor AQI Index PM2.5 PM10 and Humidity Temp with Time Display Air Monitor Test Kit - Gain Express https://www.gainexpress.com/products/dt-2856 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-dt-2856-dt-2856-digital-tachometer-photo-contact-laser-tach-rpm-0519999rmin-686502.jpg?v=1735489513 DT-2856 Digital Tachometer Photo Contact Laser Tach RPM 0.5~19,999r/min DT - 2856 Digital Tachometer Photo Contact Laser Tach RPM 0.5~19,999r/min - Gain Express https://www.gainexpress.com/products/gem-386 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gem-386-gem-386-rechargeable-10x-full-metal-jeweler-optical-magnifying-glass-5-led-5-uv-light-scale-loupe-usb-charging-lens-jewelry-gemstone-magnif-100130.jpg?v=1732854232 GEM-386 Rechargeable 10X Full Metal Jeweler Optical Magnifying Glass 5 LED 5 UV Light Scale Loupe USB Charging Lens Jewelry Gemstone Magnifier Tool GEM - 386 GEM - 386 Rechargeable 10X Full Metal Jeweler Optical Magnifying Glass 5 LED 5 UV Light Scale Loupe USB Charging Lens Jewelry Gemstone Magnifier Tool - Gain Express https://www.gainexpress.com/products/the-387 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-the-387-the-387-smart-bluetooth-meat-thermometer-500ft-wireless-range-for-bbq-oven-smoker-grilling-kitchen-food-temperature-measure-651145.jpg?v=1735489889 THE-387 Smart Bluetooth Meat Thermometer 500FT Wireless Range for BBQ, Oven, Smoker, Grilling, Kitchen Food Temperature Measure THE - 387 Smart Bluetooth Meat Thermometer 500FT Wireless Range for BBQ, Oven, Smoker, Grilling, Kitchen Food Temperature Measure - Gain Express https://www.gainexpress.com/products/gam-391 2026-05-06T09:51:27+08:00 daily 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with Data Logging function and A / C / Z Weighted Sound Meter Portable SPL Meter MAX/MIN/AVG, Data Hold Use for Home, Factory, Noisy Neighbor SLM - 390 Decibel Meter with Data Logging function and A / C / Z Weighted Sound Meter Portable SPL Meter MAX/MIN/AVG, Data Hold Use for Home, Factory, Noisy Neighbor - Gain Express https://www.gainexpress.com/products/tm-214 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-tm-214-tm-214-digital-window-tint-meter-100-visual-light-transmission-4000-continuous-measurement-65mm-thickness-portable-device-for-car-window-veh-421789.jpg?v=1735489820 TM-214 Digital Window Tint Meter 100% Visual Light Transmission 4000 Continuous Measurement 6.5mm Thickness Portable Device for Car Window Vehicle Curtains TM - 214 Digital Window Tint Meter 100% Visual Light Transmission 4000 Continuous Measurement 6.5mm Thickness Portable Device for Car Window Vehicle Curtains - Gain Express 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Agriculture Farm - Gain Express https://www.gainexpress.com/products/wqm-397 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-wqm-397-wqm-397-smart-5-in-1-ph-tds-salt-sg-temperature-wifi-tester-water-quality-for-drinking-supply-aquarium-hydroponics-pool-aquaculture-649670.jpg?v=1735489924 WQM-397 Smart 5-in-1 pH / TDS / Salt / S.G / Temperature WiFi Tester Water Quality for Drinking Supply Aquarium Hydroponics Pool Aquaculture WQM - 397 Smart 5 - in - 1 pH / TDS / Salt / S.G / Temperature WiFi Tester Water Quality for Drinking Supply Aquarium Hydroponics Pool Aquaculture - Gain Express https://www.gainexpress.com/products/snt961w 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-snt961w-smart-wifi-natural-gas-alarm-sensor-lpg-methane-ch4-combustible-gas-leak-detectors-support-home-smart-life-plug-in-and-protect-862974.jpg?v=1732854352 Smart Wifi Natural Gas Alarm Sensor LPG Methane CH4 Combustible Gas Leak Detectors Support Home Smart Life Plug in and Protect SNT961W Smart Wifi Natural Gas Alarm Sensor LPG Methane CH4 Combustible Gas Leak Detectors Support Home Smart Life Plug in and Protect - Gain Express https://www.gainexpress.com/products/slm-389 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-slm-389-slm-389-wall-hanging-sound-level-meter-13-hd-screen-decibel-meter-with-data-logger-function-audio-and-visual-alarm-871817.jpg?v=1735489731 SLM-389 Wall Hanging Sound Level Meter 13" HD Screen Decibel Meter with Data Logger Function Audio and Visual Alarm SLM - 389 Wall Hanging Sound Level Meter 13" HD Screen Decibel Meter with Data Logger Function Audio and Visual Alarm - Gain Express https://www.gainexpress.com/products/sns-co2tubing 2026-05-06T09:51:27+08:00 daily 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2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/GEM-394-preview.jpg?v=1744416542 GEM-394 10x Magnification Mini Jewelry Loupe High-quality Hasting Loupe with Optical Glass Triplet Lens, Stainless Steel Body, and Foldaway Pocket Design – Ideal for Stamp & Coin Enthusiasts, Watch Repair, and Hobby Mechanics https://www.gainexpress.com/products/gem-395 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/GEM-395-preview.jpg?v=1747645023 GEM-395 20x Magnification Mini Jewelry Loupe High-quality Hasting Loupe with Optical Glass Triplet Lens, Stainless Steel Body, and Foldaway Pocket Design – Ideal for Stamp & Coin Enthusiasts, Watch Repair, and Hobby Mechanics https://www.gainexpress.com/products/aqm-396 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-aqm-396-aqm-396-carbon-dioxide-co2-monitor-wall-mount-indoor-air-quality-meter-temperature-humidity-tester-colored-large-screen-display-with-alarm--375032.jpg?v=1732853969 AQM-396 Carbon Dioxide CO2 Monitor Wall Mount Indoor Air Quality Meter Temperature Humidity Tester Colored Large Screen Display with Alarm 400~5000PPM NDIR Sensor AQM - 396 AQM - 396 Carbon Dioxide CO2 Monitor Wall Mount Indoor Air Quality Meter Temperature Humidity Tester Colored Large Screen Display with Alarm 400~5000PPM NDIR Sensor - Gain Express https://www.gainexpress.com/products/aqm-393 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-aqm-393-aqm-393-travel-carbon-monoxide-detector-portable-mini-vehicle-co-detector-air-quality-monitor-for-car-rv-aircraft-co-gas-alarm-with-audible-164803.jpg?v=1732853668 AQM-393 Travel Carbon Monoxide Detector Portable Mini Vehicle CO Detector Air Quality Monitor for 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2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ph-08-ph-08-digital-food-ph-soil-meter-w-temperature-measure-acidity-tester-for-dough-meat-cheese-bread-fruit-high-precision-with-atc-127544.jpg?v=1735489667 PH-08 Digital Food PH Soil Meter w/ Temperature Measure Acidity Tester for Dough Meat Cheese Bread Fruit High Precision with ATC PH - 08 Digital Food PH Soil Meter w/ Temperature Measure Acidity Tester for Dough Meat Cheese Bread Fruit High Precision with ATC - Gain Express https://www.gainexpress.com/products/agf-365 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-agf-365-agf-365-multi-function-foldable-level-angle-finder-with-4-bubble-levels-4509001800-ruler-magnets-for-carpenters-woodworkers-fabricators-577150.jpg?v=1732853637 AGF-365 Multi-function Foldable Level Angle Finder with 4 Bubble Levels 45°/90°/180° Ruler Magnets for Carpenters Woodworkers Fabricators AGF - 365 AGF - 365 Multi 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Handheld Illuminance Tester TA8121 Digital Lux Light Meter Photometer Datalogger Illuminometer High - precision Data Record Function 100000 Lux FC Foot Candle Handheld Illuminance Tester - Gain Express https://www.gainexpress.com/products/tac-401 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-tac-401-tac-401-portable-2-in-1-tachometer-noncontact-laser-photo-sensor-contact319999rpm-non-contact399999rpm-rpm-gauge-tester-professional-handhe-907197.jpg?v=1735489879 TAC-401 Portable 2-in-1 Tachometer Noncontact Laser Photo Sensor Contact(3~19999RPM) & Non-contact(3~99999RPM) RPM Gauge Tester Professional Handheld Car Engine Tool TAC - 401 Portable 2 - in - 1 Tachometer Noncontact Laser Photo Sensor Contact(3~19999RPM) & Non - contact(3~99999RPM) RPM Gauge Tester Professional Handheld Car Engine Tool - Gain Express https://www.gainexpress.com/products/gem-403 2026-05-06T09:51:27+08:00 daily 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https://www.gainexpress.com/products/iwf-405 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-iwf-405w-iwf-405-wallet-finder-bluetooth-lost-item-locator-smart-luggage-tags-ios-compatible-thin-tracker-works-with-apple-find-my-app-anti-loss-de-983763.jpg?v=1732854122 IWF-405 Wallet Finder Bluetooth Lost Item Locator Smart Luggage Tags iOS Compatible Thin Tracker Works with Apple Find My App Anti-loss Device Waterproof Locator Phone Finder IWF - 405W IWF - 405 Wallet Finder Bluetooth Lost Item Locator Smart Luggage Tags iOS Compatible Thin Tracker Works with Apple Find My App Anti - loss Device Waterproof Locator Phone Finder - Gain Express https://www.gainexpress.com/products/ctm-407 2026-05-06T09:51:27+08:00 daily 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Bluetooth-compatible for IOS System Replaceable Battery IKF - 406B IKF - 406 Smart iTag Key Finder Find My APP, Smart Key, Bike, Luggage, Wallet, Bag Finder Anti - lost Tracker Locator, Bluetooth - compatible for IOS System Replaceable Battery - Gain Express https://www.gainexpress.com/products/wqm-408 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-wqm-408-wqm-408-6in1-water-quality-testing-meter-toc-uv275-ec-tds-cod-temp-tester-intelligent-scoring-mode-colored-backlight-indicator-digital-wate-541481.jpg?v=1735489919 WQM-408 6in1 Water Quality Testing Meter TOC UV275 EC TDS COD Temp Tester, Intelligent Scoring Mode, Colored Backlight Indicator Digital Water Test Kit for Home Drinking Water, Tap Industrial Water etc. WQM - 408 6in1 Water Quality Testing Meter TOC UV275 EC TDS COD Temp Tester, Intelligent Scoring Mode, Colored Backlight Indicator Digital Water Test Kit for Home Drinking Water, Tap Industrial Water etc. - Gain Express 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PAR-414 Full-Spectrum Quantum PAR Meter Waterproof Sensor IP68 for Aquarium Reef Tank Plants PPFD Tester Indoor Plants, Garden, Farm, Hydroponics Photosynthetic Activity PAR - 414 PAR - 414 Full - Spectrum Quantum PAR Meter Waterproof Sensor IP68 for Aquarium Reef Tank Plants PPFD Tester Indoor Plants, Garden, Farm, Hydroponics Photosynthetic Activity - Gain Express https://www.gainexpress.com/products/slm-417 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-slm-417-slm-417-digital-sound-level-meter-30130db-decibel-tester-spl-monitoring-audio-level-meter-for-noise-monitoring-in-the-school-offices-traffi-893462.jpg?v=1732854352 SLM-417 Digital Sound Level Meter 30~130dB Decibel Tester SPL Monitoring Audio Level Meter for Noise Monitoring in the School, Offices, Traffic, Factory, Home, etc. SLM - 417 SLM - 417 Digital Sound Level Meter 30~130dB Decibel Tester SPL Monitoring Audio Level Meter for Noise Monitoring in the School, Offices, 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Ethanol Gasoline Methane etc 0~9999PPM Measurement Range LKD - 425 LKD - 425 Gas Leak Detector Combustible Gas Test Analyzer Portable Natural Gas Sniffer for Flammable Natural Gas Acetone Propane Benzene Ethanol Gasoline Methane etc 0~9999PPM Measurement Range - Gain Express https://www.gainexpress.com/products/man-420 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-man-420-man-420-differential-pressure-manometer-with-50-kpa-kilopascal-measuring-range-for-pneumatic-compressor-valves-tanks-pump-installations-hva-298466.jpg?v=1732854120 MAN-420 Differential Pressure Manometer with ±50 kPa Kilopascal Measuring Range for Pneumatic, Compressor, Valves, Tanks, Pump Installations, HVAC Heating Ventilation and Air Conditioning Systems MAN - 420 MAN - 420 Differential Pressure Manometer with ±50 kPa Kilopascal Measuring Range for Pneumatic, Compressor, Valves, Tanks, Pump Installations, HVAC Heating Ventilation and Air Conditioning Systems - Gain Express https://www.gainexpress.com/products/gs350 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gs350-ultrasonic-jewelry-cleaner-machine-600ml-portable-ultrasonic-denture-and-eye-glasses-jewelry-cleaner-high-frequency-vibration-non-slip-bottom-122037.jpg?v=1735489873 Ultrasonic Jewelry Cleaner Machine 600ml Portable Ultrasonic Denture and Eye Glasses Jewelry Cleaner High Frequency Vibration Non-slip Bottom with 304 Stainless Steel Tank Ultrasonic Jewelry Cleaner Machine 600ml Portable Ultrasonic Denture and Eye Glasses Jewelry Cleaner High Frequency Vibration Non - slip Bottom with 304 Stainless Steel Tank - Gain Express https://www.gainexpress.com/products/emf-423 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-emf-423-emf-423-professional-emf-meter-tester-electromagnetic-field-radiation-detector-ef-radio-frequency-rf-magnetic-field-mf-detection-for-home-o-285879.jpg?v=1732853784 EMF-423 Professional EMF Meter Tester Electromagnetic Field Radiation Detector EF, Radio Frequency (RF), Magnetic Field (MF) Detection for Home, Office, School, Hospitals, etc. EMF Inspections EMF - 423 EMF - 423 Professional EMF Meter Tester Electromagnetic Field Radiation Detector EF, Radio Frequency (RF), Magnetic Field (MF) Detection for Home, Office, School, Hospitals, etc. EMF Inspections - Gain Express https://www.gainexpress.com/products/aqm-422 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-aqm-422-aqm-422-iaq-monitor-5-in-1-professional-hcho-co2-tvoc-meter-with-humidity-temperature-measurement-ndir-sensor-portable-carbon-dioxide-monit-185322.jpg?v=1732853785 AQM-422 IAQ Monitor 5 in 1 Professional HCHO | CO2 | TVOC Meter with Humidity & Temperature Measurement NDIR Sensor Portable Carbon Dioxide Monitor for Home, RV, Grow Tents, Factory etc. AQM - 422 AQM - 422 IAQ Monitor 5 in 1 Professional HCHO | CO2 | TVOC Meter with Humidity & Temperature Measurement NDIR Sensor Portable Carbon Dioxide Monitor for Home, RV, Grow Tents, Factory etc. - Gain Express https://www.gainexpress.com/products/aqm-421 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-aqm-421-aqm-421-professional-5in1-indoor-air-quality-monitor-co-co2-tvoc-meter-humidity-temperature-with-ndir-sensor-high-precision-monitor-for-hom-610657.jpg?v=1732853750 AQM-421 Professional 5in1 Indoor Air Quality Monitor CO | CO2 | TVOC Meter, Humidity & Temperature with NDIR Sensor High Precision Monitor for Home, Offices, RV, Grow Tents etc. AQM - 421 AQM - 421 Professional 5in1 Indoor Air Quality Monitor CO | CO2 | TVOC Meter, Humidity & Temperature with NDIR Sensor High Precision Monitor for Home, Offices, RV, Grow Tents etc. - Gain Express https://www.gainexpress.com/products/aqm-419 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-aqm-419-us-aqm-419-dual-output-co2-controller-carbon-dioxide-monitor-with-day-night-auto-detection-temperature-and-humidity-measurement-15ft-remote-664089.jpg?v=1732853968 AQM-419 Dual-Output CO2 Controller Carbon Dioxide Monitor with Day & Night Auto Detection, Temperature and Humidity Measurement, 15ft Remote NDIR CO2 Sensor, and Trend Chart for Greenhouses, Offices, Factories, Homes, etc. AQM - 419_US AQM - 419 Dual - Output CO2 Controller Carbon Dioxide Monitor with Day & Night Auto Detection, Temperature and Humidity Measurement, 15ft Remote NDIR CO2 Sensor, and Trend Chart for Greenhouses, Offices, Factories, Homes, etc. - Gain Express https://www.gainexpress.com/products/lux-429 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-lux-429-lux-429-digital-light-lux-meter-illuminance-tester-photometer-luxmeter-high-precision-illuminometer-lx-fc-measurement-for-photography-schoo-913287.jpg?v=1732854120 LUX-429 Digital Light Lux Meter Illuminance Tester Photometer Luxmeter High Precision Illuminometer Lx FC Measurement for Photography, Schools, Hospitals, Workplaces and other Environmental Monitoring LUX - 429 LUX - 429 Digital Light Lux Meter Illuminance Tester Photometer Luxmeter High Precision Illuminometer Lx FC Measurement for Photography, Schools, Hospitals, Workplaces and other Environmental Monitoring - Gain Express https://www.gainexpress.com/products/lkd-433 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-lkd-432-lkd-432-refrigerant-leak-detector-handheld-17-inch-gooseneck-probe-sensor-heating-diode-leak-tester-for-air-conditioning-and-refrigeration--431976.jpg?v=1732854227 LKD-432 Refrigerant Leak Detector Handheld 17-inch Gooseneck Probe Sensor Heating Diode Leak Tester for Air Conditioning and Refrigeration System with Buzzer, Visual Alarm and LCD Bar Graph LKD - 432 LKD - 432 Refrigerant Leak Detector Handheld 17 - inch Gooseneck Probe Sensor Heating Diode Leak Tester for Air Conditioning and Refrigeration System with Buzzer, Visual Alarm and LCD Bar Graph - Gain Express https://www.gainexpress.com/products/plt-433 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-plt-433-plt-433-floating-pool-lights-waterproof-solar-powered-night-flame-lights-flickering-pool-accessories-ip68-with-remote-control-3-light-modes-201896.jpg?v=1735489666 PLT-433 Floating Pool Lights Waterproof Solar Powered Night Flame Lights Flickering Pool Accessories IP68 with Remote Control 3 Light Modes Outdoor Decoration Lamp for Pool Porch Courtyard Gardens Lawns PLT - 433 Floating Pool Lights Waterproof Solar Powered Night Flame Lights Flickering Pool Accessories IP68 with Remote Control 3 Light Modes Outdoor Decoration Lamp for Pool Porch Courtyard Gardens Lawns - Gain Express https://www.gainexpress.com/products/mbx-428 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-mbx-428-mbx-428-wall-mounted-music-boxing-smart-bluetooth-with-gloves-music-punching-machine-boxing-target-workout-punching-equipment-for-adults-ki-473854.jpg?v=1732854154 MBX-428 Wall Mounted Music Boxing Smart Bluetooth with Gloves Music Punching Machine Boxing Target Workout Punching Equipment for Adults Kids Home Indoor and Gym MBX - 428 MBX - 428 Wall Mounted Music Boxing Smart Bluetooth with Gloves Music Punching Machine Boxing Target Workout Punching Equipment for Adults Kids Home Indoor and Gym - Gain Express https://www.gainexpress.com/products/emf-427 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-emf-427-emf-427-solar-power-meter-sun-light-radiation-testing-for-solar-energy-research-meteorology-agriculture-sun-light-energy-measuring-tool-924355.jpg?v=1732853785 EMF-427 Solar Power Meter Sun Light Radiation Testing for Solar Energy Research Meteorology Agriculture Sun Light Energy Measuring Tool EMF - 427 EMF - 427 Solar Power Meter Sun Light Radiation Testing for Solar Energy Research Meteorology Agriculture Sun Light Energy Measuring Tool - Gain Express https://www.gainexpress.com/products/cab-430 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-cab-430-cab-430-fiber-optic-power-meter-vfl-ref-fc-sc-st-visual-fault-locator-hd-colored-lcd-display-fiber-optical-cable-tester-network-tools-242280.jpg?v=1732854157 CAB-430 Fiber Optic Power Meter VFL REF FC SC ST Visual Fault Locator HD Colored LCD Display Fiber Optical Cable Tester Network Tools CAB - 430 CAB - 430 Fiber Optic Power Meter VFL REF FC SC ST Visual Fault Locator HD Colored LCD Display Fiber Optical Cable Tester Network Tools - Gain Express https://www.gainexpress.com/products/aqm-434 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-aqm-434-aqm-434-gas-leak-detector-4-in-1-h2sexo2co-tester-analyzer-instant-alerts-audible-light-vibration-alarm-natural-methane-gas-detector-ip68-w-644216.png?v=1732853636 AQM-434 Gas Leak Detector 4-in-1 H2S|EX|O2|CO Tester Analyzer Instant Alerts Audible, Light, Vibration Alarm Natural Methane Gas Detector IP68 with Data Storage Portable Rechargeable AQM - 434 AQM - 434 Gas Leak Detector 4 - in - 1 H2S|EX|O2|CO Tester Analyzer Instant Alerts Audible, Light, Vibration Alarm Natural Methane Gas Detector IP68 with Data Storage Portable Rechargeable - Gain Express https://www.gainexpress.com/products/lkd-431 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-lkd-431-lkd-431-halogen-gas-leak-detector-high-sensitivity-for-air-conditioning-repair-car-repair-gas-pipelines-industrial-plant-home-use-with-105--413381.jpg?v=1732854119 LKD-431 Halogen Gas Leak Detector High Sensitivity for Air Conditioning Repair, Car Repair, Gas Pipelines, Industrial Plant, Home Use with 10.5-inch Gooseneck Probe Visual, Audible and Vibration Alert LKD - 431 LKD - 431 Halogen Gas Leak Detector High Sensitivity for Air Conditioning Repair, Car Repair, Gas Pipelines, Industrial Plant, Home Use with 10.5 - inch Gooseneck Probe Visual, Audible and Vibration Alert - Gain Express https://www.gainexpress.com/products/sqm-438 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-sqm-438-sqm-438-3-in-1-soil-acidity-alkalinity-ph-tester-with-temperature-and-moisture-measurement-83-inch-metal-probe-for-plant-seedbed-flower-far-152343.jpg?v=1735489727 SQM-438 3-in-1 Soil Acidity / Alkalinity pH Tester with Temperature and Moisture Measurement 8.3-inch Metal Probe for Plant, Seedbed, Flower Farm, Agriculture, Orchard Soil Testing SQM - 438 3 - in - 1 Soil Acidity / Alkalinity pH Tester with Temperature and Moisture Measurement 8.3 - inch Metal Probe for Plant, Seedbed, Flower Farm, Agriculture, Orchard Soil Testing - Gain Express https://www.gainexpress.com/products/std-439r 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-std-439r-std-439r-3-in-1-home-electric-drilling-dust-collector-wall-mount-laser-level-bracket-with-laser-level-function-2m-red-laser-distance-with--831129.jpg?v=1735489866 STD-439R 3 in 1 Home Electric Drilling Dust Collector Wall Mount Laser Level Bracket with Laser Level Function 2M Red Laser Distance with Horizontal & Vertical Bubble Level STD - 439R 3 in 1 Home Electric Drilling Dust Collector Wall Mount Laser Level Bracket with Laser Level Function 2M Red Laser Distance with Horizontal & Vertical Bubble Level - Gain Express https://www.gainexpress.com/products/slm-413 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-slm-413-slm-413-wall-mounteddesktop-noise-decibel-meter-13-colored-screen-sound-level-tester-130db-with-temperature-and-humidity-measurement-12h24h-416598.jpg?v=1735489723 SLM-413 Wall-mounted|Desktop Noise Decibel Meter 13" Colored Screen Sound Level Tester 130dB with Temperature and Humidity Measurement, 12H/24H Clock Display, Adjustable Brightness and Alarm Function SLM - 413 Wall - mounted|Desktop Noise Decibel Meter 13" Colored Screen Sound Level Tester 130dB with Temperature and Humidity Measurement, 12H/24H Clock Display, Adjustable Brightness and Alarm Function - Gain Express https://www.gainexpress.com/products/phm-443 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-phm-443-phm-443-digital-pentype-ph-meter-high-accuracy-colored-screen-red-backlight-alarm-3-point-calibration-with-temperature-measurement-atc-func-682175.jpg?v=1732854227 PHM-443 Digital Pentype pH Meter High Accuracy Colored Screen | Red Backlight Alarm | 3-Point Calibration with Temperature Measurement ATC Function for Liquids in Laboratory Food and Medicine Industry PHM - 443 PHM - 443 Digital Pentype pH Meter High Accuracy Colored Screen | Red Backlight Alarm | 3 - Point Calibration with Temperature Measurement ATC Function for Liquids in Laboratory Food and Medicine Industry - Gain Express https://www.gainexpress.com/products/ctm-444 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ctm-444-ctm-444-professional-thickness-gauge-ultrasonic-thickness-meter-datalogger-103000mm-003118inches-record-1500-data-maxminave-reading-colored-831576.jpg?v=1732853667 CTM-444 Professional Thickness Gauge Ultrasonic Thickness Meter Datalogger 1.0~300.0mm (0.03~11.8inches) Record 1500 Data MAX|MIN|AVE Reading Colored Screen for Steel, Metal, Ceramics etc. Measurement CTM - 444 CTM - 444 Professional Thickness Gauge Ultrasonic Thickness Meter Datalogger 1.0~300.0mm (0.03~11.8inches) Record 1500 Data MAX|MIN|AVE Reading Colored Screen for Steel, Metal, Ceramics etc. Measurement - Gain Express https://www.gainexpress.com/products/slm-442 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-slm-442-slm-442-sound-level-meter-datalogger-decibel-noise-tester-spl-monitor-with-31000-data-record-function-visual-hi-low-alarm-a-c-weighted-colo-994304.jpg?v=1732854352 SLM-442 Sound Level Meter Datalogger Decibel Noise Tester SPL Monitor with 31,000 Data Record Function, Visual Hi | Low Alarm A | C Weighted Colored Screen Display for Home, Classroom, Traffic Noise Monitoring etc. SLM - 442 SLM - 442 Sound Level Meter Datalogger Decibel Noise Tester SPL Monitor with 31,000 Data Record Function, Visual Hi | Low Alarm A | C Weighted Colored Screen Display for Home, Classroom, Traffic Noise Monitoring etc. - Gain Express https://www.gainexpress.com/products/slm-441 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-slm-441-slm-441-decibel-meter-datalogger-sound-level-tester-noise-decibel-reader-monitor-spl-meter-with-43000-data-record-visual-alarm-ac-weighted--502324.jpg?v=1735489752 SLM-441 Decibel Meter Datalogger Sound Level Tester Noise Decibel Reader Monitor SPL Meter with 43,000 Data Record, Visual Alarm, A/C Weighted, PC Connection Colored Screen Display for Home, Classroom, Traffic Noise Monitoring etc. SLM - 441 Decibel Meter Datalogger Sound Level Tester Noise Decibel Reader Monitor SPL Meter with 43,000 Data Record, Visual Alarm, A/C Weighted, PC Connection Colored Screen Display for Home, Classroom, Traffic Noise Monitoring etc. - Gain Express https://www.gainexpress.com/products/gem-450 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gem-450-10x-gem-450-jeweler-magnifier-loupe-10x-20x-30x-40x-with-6-uv-and-led-light-22mm-optical-triplet-lens-usb-rechargeable-mini-gem-tool-230386.jpg?v=1735489629 GEM-450 Jeweler Magnifier Loupe (10X / 20X / 30X / 40X) with 6 UV and LED Light 22mm Optical Triplet Lens, USB Rechargeable Mini Gem Tool GEM - 450 Jeweler Magnifier Loupe (10X / 20X / 30X / 40X) with 6 UV and LED Light 22mm Optical Triplet Lens, USB Rechargeable Mini Gem Tool - Gain Express https://www.gainexpress.com/products/gem-451 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-gem-451-10x-gem-451-magnifier-mini-jeweler-loupe-10x-20x-30x-18mm-high-quality-optical-triplet-lens-battery-free-inspection-ideal-for-jewelers-gemo-781172.jpg?v=1732854159 GEM-451 Magnifier Mini Jeweler Loupe (10X / 20X / 30X) 18mm High-Quality Optical Triplet Lens Battery Free Inspection Ideal for Jewelers, Gemologists, Collectors and Repairs GEM - 451_10X GEM - 451 Magnifier Mini Jeweler Loupe (10X / 20X / 30X) 18mm High - Quality Optical Triplet Lens Battery Free Inspection Ideal for Jewelers, Gemologists, Collectors and Repairs - Gain Express https://www.gainexpress.com/products/wqm-448 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-wqm-448-wqm-448-digital-3-in-1-ph-ec-temperature-tester-waterproof-ip65-for-phec-measurement-in-water-meats-and-soft-solid-food-samples-with-atc-po-403512.jpg?v=1735489922 WQM-448 Digital 3-in-1 pH | EC | Temperature Tester Waterproof IP65 for pH/EC Measurement in Water, Meats and Soft Solid Food Samples with ATC, Portable High-Accuracy WQM - 448 Digital 3 - in - 1 pH | EC | Temperature Tester Waterproof IP65 for pH/EC Measurement in Water, Meats and Soft Solid Food Samples with ATC, Portable High - Accuracy - Gain Express https://www.gainexpress.com/products/cab-449 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-cab-449-cab-449-optical-fiber-identifier-8001700nm-wavelength-with-visual-fault-locator-vfl-and-optical-power-module-function-active-live-optical-n-755054.jpg?v=1732853633 CAB-449 Optical Fiber Identifier 800～1700nm Wavelength with Visual Fault Locator (VFL) and Optical Power Module Function Active Live Optical Network Testing Colored Screen Display Power Meter Tool CAB - 449 CAB - 449 Optical Fiber Identifier 800～1700nm Wavelength with Visual Fault Locator (VFL) and Optical Power Module Function Active Live Optical Network Testing Colored Screen Display Power Meter Tool - Gain Express https://www.gainexpress.com/products/msc-454 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/MSC-454-Preview.jpg?v=1766570152 MSC-454 Magnification Microscope 100X LED Lightning Scale Loupe Compact Portable High Magnifying Glass Geology Metallurgy Research https://www.gainexpress.com/products/the-373-k-j 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-the-373-the-373-kjt-datalogger-thermocouple-thermometer-20013720c-32825010f-4-channel-display-real-time-data-logging-audible-and-visible-alarm-and--732829.jpg?v=1735489855 THE-373 K/J/T Datalogger Thermocouple Thermometer -200~1372°C (-328~2501°F), 4-Channel Display, Real-Time Data Logging, Audible and Visible Alarm, and ADJ Compensation THE - 373 K/J/T Datalogger Thermocouple Thermometer - 200~1372°C ( - 328~2501°F), 4 - Channel Display, Real - Time Data Logging, Audible and Visible Alarm, and ADJ Compensation - Gain Express https://www.gainexpress.com/products/clmg-7209 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-clmg-7209-blk-clmg-7209-foldaway-dichroscope-gemstone-jewelry-testing-tool-lightweight-and-portable-ideal-for-jewelers-and-gemologists-204087.jpg?v=1735489466 CLMG-7209 Foldaway Dichroscope Gemstone Jewelry Testing Tool Lightweight and Portable Ideal for Jewelers and Gemologists CLMG - 7209 Foldaway Dichroscope Gemstone Jewelry Testing Tool Lightweight and Portable Ideal for Jewelers and Gemologists - Gain Express https://www.gainexpress.com/products/wqm-453 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-wqm-453-wqm-453-water-quality-conductivity-indicator-7-led-conductivity-level-measure-090uscm-with-atc-and-ip68-for-water-filter-monitoring-environ-381457.jpg?v=1735489904 WQM-453 Water Quality Conductivity Indicator 7 LED Conductivity Level Measure 0~90us/cm with ATC and IP68 for Water Filter Monitoring, Environmental Checking etc. WQM - 453 Water Quality Conductivity Indicator 7 LED Conductivity Level Measure 0~90us/cm with ATC and IP68 for Water Filter Monitoring, Environmental Checking etc. - Gain Express https://www.gainexpress.com/products/ls255 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-ls255-portable-digital-webster-hardness-tester-6-selectable-hardness-scale-simple-calibration-with-bluetooth-mobile-app-connection-android-only-705612.jpg?v=1735489671 Portable Digital Webster Hardness Tester 6 Selectable Hardness Scale, Simple Calibration with Bluetooth -Mobile App Connection (Android Only) Portable Digital Webster Hardness Tester 6 Selectable Hardness Scale, Simple Calibration with Bluetooth - Mobile App Connection (Android Only) - Gain Express https://www.gainexpress.com/products/tac-455 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-tac-455-tac-455-portable-non-contact-tachometer-2599999rpm-high-precision-with-analog-bar-scale-and-alarm-function-temperature-measurement-for-mach-873555.jpg?v=1735872737 TAC-455 Portable Non-Contact Tachometer 2.5~99999RPM High Precision with Analog Bar Scale and Alarm Function, Temperature Measurement for Machinery Car Motor engine Tool TAC - 455 Portable Non - Contact Tachometer 2.5~99999RPM High Precision with Analog Bar Scale and Alarm Function, Temperature Measurement for Machinery Car Motor engine Tool - Gain Express https://www.gainexpress.com/products/sqm-457 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-sqm-457-sqm-457-high-precision-8-in-1-ph-ec-fertility-salt-temperature-soil-moisture-meter-smart-bluetooth-light-intensity-air-humidity-detector-fo-505140.jpg?v=1735872695 SQM-457 High Precision 8-in-1 PH EC Fertility Salt Temperature Soil Moisture Meter Smart Bluetooth Light Intensity Air Humidity Detector for Plant Health Monitoring SQM - 457 High Precision 8 - in - 1 PH EC Fertility Salt Temperature Soil Moisture Meter Smart Bluetooth Light Intensity Air Humidity Detector for Plant Health Monitoring - Gain Express https://www.gainexpress.com/products/emf-456 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/gain-express-emf-456-emf-456-gauss-meter-portable-tesla-meter-gaussmeter-02500-mt-surface-magnetic-field-tester-high-precision-hall-sensor-1-accuracy-with-data--718737.jpg?v=1735872651 EMF-456 Gauss Meter Portable Tesla Meter Gaussmeter 0~2500 mT Surface Magnetic Field Tester High Precision Hall Sensor ±1% or ±5% Accuracy with Data Record Function EMF - 456 Gauss Meter Portable Tesla Meter Gaussmeter 0~2500 mT Surface Magnetic Field Tester High Precision Hall Sensor ±1% Accuracy with Data Record Function - Gain Express https://www.gainexpress.com/products/gem-459 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/GEM-459-preview.jpg?v=1738553166 GEM-459 Gemstone Identification 2-in-1 Tool 15x Magnifier & Jadeite Filter with 21mm Lens Diameter for Genuine Emeralds Checking, Diamonds, Jewelry, Coins, Stamps, Antiques, etc. Gem-459 Gemstone Identification 2-In-1 Tool 15X Magnifier & Jadeite Filter With 21Mm Lens Diameter https://www.gainexpress.com/products/gem-460 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/GEM-460-Preview.jpg?v=1738553117 GEM-460 Portable 93mm Length LED Gemstone Polariscope, Dual Lens with 28mm Diameter, Built-in LED Light for Jeweler, Gemologist Tool Gem-460 Portable 93Mm Length Led Gemstone Polariscope Dual Lens With 28Mm Diameter Built-In Light https://www.gainexpress.com/products/gem-461 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/GEM-461-Preview.jpg?v=1738553066 GEM-461 Focusing Prism Spectroscope for Gemstone Analysis Adjustable Focus, 400-700nm 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INC-501 Egg Incubator with Automatic Egg Turning, Temperature Control, Candler, Humidity Display, 8~18 Eggs Chicken Embryo Incubator for Hatching Chicken, Duck, Bird, Quail, Goose, and Turkey Embryos INC-501 Egg Incubator with Automatic Egg Turning Temperature Control Candler Humidity Display 8~18 Eggs Chicken Embryo https://www.gainexpress.com/products/phc-493 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/PHC-493-preview1.jpg?v=1755508384 PHC-493 PH / EC /Temp Meter Smart Acidity & Conductivity Range Controller Monitoring and Dosing in Water pH Meter Conductivity Temp Tester App Remote Online Monitor for Swimming Pool Aquaculture Fishpond https://www.gainexpress.com/products/wqm-504 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/wqm-504-smart-aquarium-water-quality-monitor-7-in-1-real-time-tester-for-ph-temperature-tds-ec-salinity-specific-gravity-orp-wifi-connected-with-mobile-alerts-829.jpg?v=1748999607 WQM-504 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https://cdn.shopify.com/s/files/1/0393/5153/files/bft-505-brake-fluid-tester-0-4-range-digital-oil-detector-for-dot3-dot4-dot5-1-color-backlight-buzzer-alarm-safe-change-of-car-motorcycle-vehicle-truck-456.jpg?v=1750217113 BFT-505 Brake Fluid Tester 0~4% Range Digital Brake Oil Detector for DOT3, DOT4, DOT5.1 Color Backlight & Buzzer Alarm for Safe Brake Oil Change of Car Motorcycle Vehicle Truck Automobile BFT-505 Brake Fluid Tester 0~4% Range Digital Brake Oil Detector for DOT3 DOT4 DOT5.1 Color Backlight & Buzzer Alarm https://www.gainexpress.com/products/emf-506 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/emf-506-digital-gauss-meter-tesla-high-precision-portable-magnetic-field-detector-0-25k-gs-2500-mt-range-for-magnet-testing-motors-industrial-applications-hd-974.jpg?v=1753156814 EMF-506 Digital Gauss Meter / Tesla Meter - High Precision Portable Magnetic Field Detector 0~25k Gs (0~2500 mT) Range for Magnet Testing, Motors & Industrial 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https://cdn.shopify.com/s/files/1/0393/5153/files/mul-498-portable-handheld-digital-oscilloscope-voltage-frequency-rise-time-duty-cycle-for-professional-and-diy-analysis-multimeters-clamp-meters-scopemeter-179.jpg?v=1755835036 MUL-498 Portable Handheld Digital Oscilloscope Voltage, Frequency, Rise Time, Duty Cycle for Professional and DIY Analysis MUL 498 Portable Handheld Digital Oscilloscope Voltage Frequency Rise Time Duty Cycle for Professional and DIY Analysis https://www.gainexpress.com/products/uvm-529 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/uvm-529-digital-ultraviolet-detector-uv-uvi-tester-light-meter-irradiance-intensity-monitor-100-data-record-for-reptile-husbandry-phototherapy-indoor-tanning-568.jpg?v=1756173364 UVM-529 Digital Ultraviolet Detector UV UVI Tester Light Meter Irradiance Intensity Monitor 100 Data Record for Reptile Husbandry, Phototherapy, Indoor Tanning Personal and Professional Usage UVM 529 Digital Ultraviolet Detector UV UVI Tester Light Meter Irradiance Intensity Monitor 100 Data Record for Reptile https://www.gainexpress.com/products/mul-400 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/mul-400-mini-digital-oscilloscope-portable-200khz-meter-with-2-8-lcd-auto-trigger-usb-power-high-voltage-probe-800v-multimeters-clamp-meters-scopemeter-516.jpg?v=1756692529 MUL-400 Mini Digital Oscilloscope Portable 200KHz Meter with 2.8" LCD, Auto Trigger, & USB Power with High Voltage Probe (800V) MUL 400 Mini Digital Oscilloscope Portable 200KHz Meter with 2.8’’ LCD Auto Trigger & USB Power with High Voltage Probe https://www.gainexpress.com/products/clmg-7301 2026-05-06T09:51:27+08:00 daily https://cdn.shopify.com/s/files/1/0393/5153/files/clmg-7301-chelsea-filter-mini-gemstone-tool-21mm-lens-diameter-with-glass-foldable-design-heavy-duty-white-gem-identification-toolkit-set-978.jpg?v=1756692477 CLMG-7301 Chelsea Filter Mini Gemstone Tool 21mm Lens Diameter with 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