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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 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

PAR-355 Light PAR Meter Advanced Quantum Sensor Measure Grow Light Intensity Lux Meter PPFD Tester for Indoor and Outdoor Plant Photosynthetic Activity

$95.90 USD

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 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

PAR-414 Full-Spectrum Quantum PAR Meter Waterproof Sensor IP68 for Aquarium Reef Tank Plants PPFD Tester Indoor Plants, Garden, Farm, Hydroponics Photosynthetic Activity

$158.90 USD

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

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 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

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

$77.90 USD

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 TL205 Digital Sound Level Meter 130dB Decibel Tester Auto Ranging A/C Weighting with LCD Backlight - Gain Express

TL205 Digital Sound Level Meter 130dB Decibel Tester Auto Ranging A/C Weighting with LCD Backlight

$37.90 USD

SLM-563 Decibel Meter Rechargeable Digital Sound Level Meter 30–130dB High Precision A-Weighted SPL Tester with Data Hold for Home, Office, Industrial, Construction

SLM-563 Decibel Meter Rechargeable Digital Sound Level Meter 30–130dB High Precision A-Weighted SPL Tester with Data SLM-563 Decibel Meter Rechargeable Digital Sound Level Meter 30–130dB High Precision A-Weighted SPL Tester with Data

SLM-563 Decibel Meter Rechargeable Digital Sound Level Meter 30–130dB High Precision A-Weighted SPL Tester with Data Hold for Home, Office, Industrial, Construction

$27.90 USD

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 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

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

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 560 - 10D 560 - 10D Shore D Digital Hardness Meter Durometer 0~100HD Pocket Size Tester with LCD Display - Gain Express

560-10D Shore D Digital Hardness Meter Durometer 0~100HD Pocket Size Tester with LCD Display

$40.90 USD

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 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

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

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 SLM - 413 Wall - mounted|Desktop Noise Decibel Meter 13

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

$69.90 USD

SLM-411 Digital Sound Level Meter 30~130 dBA Decibel Meter Capacitive Microphone Sensor dB Tester 30~130dB SPL Monitor IP54

SLM - 411 SLM - 411 Digital Sound Level Meter 30~130 dBA Decibel Meter Capacitive Microphone Sensor dB Tester 30~130dB SPL Monitor IP54 - Gain Express SLM - 411 SLM - 411 Digital Sound Level Meter 30~130 dBA Decibel Meter Capacitive Microphone Sensor dB Tester 30~130dB SPL Monitor IP54 - Gain Express

SLM-411 Digital Sound Level Meter 30~130 dBA Decibel Meter Capacitive Microphone Sensor dB Tester 30~130dB SPL Monitor IP54

$27.90 USD

SLM-24 Professional Sound Level Meter with Backlit Display High Accuracy Measuring 30dB-130dB Compact Instrument

SLM - 24 Professional Sound Level Meter with Backlit Display High Accuracy Measuring 30dB - 130dB Compact Instrument - Gain Express SLM - 24 Professional Sound Level Meter with Backlit Display High Accuracy Measuring 30dB - 130dB Compact Instrument - Gain Express

SLM-24 Professional Sound Level Meter with Backlit Display High Accuracy Measuring 30dB-130dB Compact Instrument

$52.90 USD

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 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
-40%

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

$14.94 USD
$24.90 USD

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 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

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

SAL-543 Salinity and Temperature Meter Digital Salinometer 0–199.9 ppt ATC with LCD Backlight, High Precision 2-in-1 Pen Tester for Aquarium, Fish Pond, Marine Tank, and Swimming Pool

SAL-543 Salinity and Temperature Meter Digital Salinometer 0–199.9 ppt ATC with LCD Backlight High Precision 2-in-1 Pen SAL-543 Salinity and Temperature Meter Digital Salinometer 0–199.9 ppt ATC with LCD Backlight High Precision 2-in-1 Pen

SAL-543 Salinity and Temperature Meter Digital Salinometer 0–199.9 ppt ATC with LCD Backlight, High Precision 2-in-1 Pen Tester for Aquarium, Fish Pond, Marine Tank, and Swimming Pool

$29.90 USD

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, Traffic, Factory, Home, etc. - Gain Express SLM - 417 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. - Gain Express

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.

$27.90 USD

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 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

WQM-397 Smart 5-in-1 pH / TDS / Salt / S.G / Temperature WiFi Tester Water Quality for Drinking Supply Aquarium Hydroponics Pool Aquaculture

$62.90 USD

CM-8822 Digital Coating Thickness Meter 0~1000um/0~40mil + F & FN Probes Automotive Tool Iron Aluminum Substrate

CM - 8822 CM - 8822 Digital Coating Thickness Meter 0~1000um/0~40mil + F & FN Probes Automotive Tool Iron Aluminum Substrate - Gain Express CM - 8822 CM - 8822 Digital Coating Thickness Meter 0~1000um/0~40mil + F & FN Probes Automotive Tool Iron Aluminum Substrate - Gain Express

CM-8822 Digital Coating Thickness Meter 0~1000um/0~40mil + F & FN Probes Automotive Tool Iron Aluminum Substrate

$229.90 USD

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 SLM-389 Wall Hanging Sound Level Meter 13

SLM-389 Wall Hanging Sound Level Meter 13" HD Screen Decibel Meter with Data Logger Function Audio and Visual Alarm

$149.90 USD

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 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

SL-5868P-BT Professional Sound Level Meter 30~130dB USB Drive Software & Bluetooth

SL-5868P-BT Professional Sound Level Meter 30~130dB USB Drive Software & Bluetooth SL - 5868P - BT Professional Sound Level Meter 30~130dB USB Drive Software & Bluetooth - Gain Express

SL-5868P-BT Professional Sound Level Meter 30~130dB USB Drive Software & Bluetooth

$105.90 USD
Showing 41 - 60 of 788 items
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