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Air Quality Meters

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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 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

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

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 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

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

$83.90 USD

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 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

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

$141.90 USD

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 - time CO2 Detector, Carbon Dioxide & Temperature & Humidity Level with Large LED Screen & Visual Color Warning Light Bar and Audible Alarms - Gain Express 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 - Gain Express

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

$202.90 USD

88163 Digital Waterproof USB Datalogger Humidity Temperature and Pressure Barometric Data Logger gauge, generate PDF/Excel report LED indicator

88163 88163 Digital Waterproof USB Datalogger Humidity Temperature and Pressure Barometric Data Logger gauge, generate PDF/Excel report LED indicator - Gain Express 88163 88163 Digital Waterproof USB Datalogger Humidity Temperature and Pressure Barometric Data Logger gauge, generate PDF/Excel report LED indicator - Gain Express

88163 Digital Waterproof USB Datalogger Humidity Temperature and Pressure Barometric Data Logger gauge, generate PDF/Excel report LED indicator

$80.90 USD

AQM-306 Air Quality Monitor CO2 / CO / HCHO / TVOC / AQI Formaldehyde Detector Rechargeable Accurate Air Gas Tester for Home Office and Various Occasion

AQM - 306 AQM - 306 Air Quality Monitor CO2 / CO / HCHO / TVOC / AQI Formaldehyde Detector Rechargeable Accurate Air Gas Tester for Home Office and Various Occasion - 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 Occasion - Gain Express

AQM-306 Air Quality Monitor CO2 / CO / HCHO / TVOC / AQI Formaldehyde Detector Rechargeable Accurate Air Gas Tester for Home Office and Various Occasion

TM-730 Digital Pocket Size Thermo-Hygrometer Temperature Meter Humidity Tester with Wet Bulb and Dew Point Measurement

TM - 730 Digital Pocket Size Thermo - Hygrometer Temperature Meter Humidity Tester with Wet Bulb and Dew Point Measurement - Gain Express TM - 730 Digital Pocket Size Thermo - Hygrometer Temperature Meter Humidity Tester with Wet Bulb and Dew Point Measurement - Gain Express

TM-730 Digital Pocket Size Thermo-Hygrometer Temperature Meter Humidity Tester with Wet Bulb and Dew Point Measurement

$96.90 USD

7530 Digital CO2 Carbon Dioxide IAQ Monitor Controller with Relay Function 4.5M Cable NDIR Sensing Probe for Green House Home, Office, Factory

7530 Digital CO2 Carbon Dioxide IAQ Monitor Controller with Relay Function 4.5M Cable NDIR Sensing Probe for Green House Home, Office, Factory - Gain Express 7530 Digital CO2 Carbon Dioxide IAQ Monitor Controller with Relay Function 4.5M Cable NDIR Sensing Probe for Green House Home, Office, Factory - Gain Express

7530 Digital CO2 Carbon Dioxide IAQ Monitor Controller with Relay Function 4.5M Cable NDIR Sensing Probe for Green House Home, Office, Factory

HTM-278 Digital Humidity Temperature Meter Psychrometer Thermo-Hygrometer 999 Sets Data Storage with Dew Point and Wet Bulb Temperature Measurement Dual Display Portable Tester

HTM - 278 Digital Humidity Temperature Meter Psychrometer Thermo - Hygrometer 999 Sets Data Storage with Dew Point and Wet Bulb Temperature Measurement Dual Display Portable Tester - Gain Express HTM - 278 Digital Humidity Temperature Meter Psychrometer Thermo - Hygrometer 999 Sets Data Storage with Dew Point and Wet Bulb Temperature Measurement Dual Display Portable Tester - Gain Express

HTM-278 Digital Humidity Temperature Meter Psychrometer Thermo-Hygrometer 999 Sets Data Storage with Dew Point and Wet Bulb Temperature Measurement Dual Display Portable Tester

$32.90 USD

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 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

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

$187.90 USD

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 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

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

$308.90 USD

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 7755_CD_ADAPTOR Carbon Dioxide (CO2) RH & Temperature Real - Time Air Quality Monitor with PC Software Recording Analyzer - Gain Express

7755_CD_ADAPTOR Carbon Dioxide (CO2) RH & Temperature Real-Time Air Quality Monitor with PC Software Recording Analyzer

$217.90 USD

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 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

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

$31.90 USD

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 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

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

$46.90 USD

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 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

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

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 CO22 CO22 Carbon Dioxide / Temperature/ Humidity Indoor Air Quality Monitor Meter, Wall Mountable CO2 Detector 0~2000ppm Range - Gain Express

CO22 Carbon Dioxide / Temperature/ Humidity Indoor Air Quality Monitor Meter, Wall Mountable CO2 Detector 0~2000ppm Range

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 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

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

$32.90 USD

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 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
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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

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 M0198585 M0198585 Wallmount/Desktop Temperature Humidity Data Logger Monitor with CD Software and USB Cable - Gain Express

M0198585 Wallmount/Desktop Temperature Humidity Data Logger Monitor with CD Software and USB Cable

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 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

LKD-36 Portable Combustible Gas Leak Detector 50ppm with Built-in Sensor , Propane Butane Methane Natural Gas, Adjustable Sound Light Alarm Tester

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