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Shop the best prices on 7,046 great value gas detectors. Shopping for gas detectors is easy with Fruugo, with SALE discounts, offers and savings on Viewleaf, GreenZech, Habicare and more. Buy gas detectors online safely with Fruugo, with secure payment and fast shipping to Canada.

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2,369 - 2,400 of 3,200
5-In-1 Professional Indoor Air Quality Monitor Portable CO2, Temperature, Humidity, Formaldehyde Detector White Blue
$59.00 Save $30.00 RRP: $89.00
Industrial Gas Detector with External Pump for Continuous Monitoring of Flammable Gases, Oxygen, Carbon Monoxide, and Hydrogen Sulfide
$119.00 Save $60.00 RRP: $179.00
Oxygen Sensor AO-02 Gas Detector Compatible with AO2 AA428-210 AO2PTB-18.10
$84.00
Air Quality Monitor Indoor, Air Quality Detector, CO2 Monitor Black
$46.95
2Pcs - SGP40 SGP40 TVOC eCO2 CO2 Carbon Dioxide Sensor
$26.95
Portable Radon Detector, Audible & Visual Alarm, Long-Term Radon Concentration Monitoring for Home Basement, PCi/L
$239.00
4-in-1 Gas Detector with Sensors for Carbon Monoxide Oxygen and Gases Portable Harmful Alarms for Safety
$289.00
Air Quality Detector Gas Analyzer Thermometer Hygrometer Co2 Tester
$64.00
CO2 Detector, Indoor Air Quality Monitor, TVOC Meter,for Office Home
$36.95
Oxygen Hydrogen Sulfide Carbon Monoxide Combustible Gas Leak Detector
$159.00
BSIDE G1 Combustible Gas Detector Ambient Temperature Natural Gas Methane Propane Gasoline Leak Tester
$29.95 Save $17.00 RRP: $46.95
Gas Monitor 4 in 1 CO H2S O2 LEL Accurate Measurement Sound Light Vibration Alarm Backlit Display Gas Detector
$119.00 Save $60.00 RRP: $179.00
Gas Detector Handheld Rubber Steel Alloy ABS for Testing Automobile Tires Nitrogen Purity
$449.00 Save $275.00 RRP: $724.00
5 in 1 Air Quality Monitor TVOC HCHO Temperature Humidity CO2 Meter, USB Rechargeable CO2 Detector Black
$24.95
Portable Natural Gas Leak Detector with LCD Display High Accuracy Combustible Gas Detector Sensor Tester
$44.95 Save $14.05 RRP: $59.00
CO2 Air Detector for Agricultural Greenhouses Carbon Dioxide Monitor by White-Yuyu
$34.95 Save $74.05 RRP: $109.00
5 in 1 Air Quality Monitor TVOC HCHO Temperature Humidity CO2 Meter, USB Rechargeable CO2 Detector White
$25.95 Save $7.00 RRP: $32.95
Lcd Carbon Monoxide Co Detector Poisoning Gas Sensor Monitor Warning Alarm Set
$15.95
NDIR CO2 Sensor Infrared Carbon Dioxide Sensor Module with Serial Port PWM Analog Output CO2 Gas Detector Module MH-Z14A
$41.95 Save $12.05 RRP: $54.00
5 in 1 Air Quality Detector Semiconductor Sensors HCHO TVOC CO2 Temperature Humidity Tester Air Mon
$28.95
Tuya Wifi Air Quality Monitor Smart Home CO2 Detector Formaldehyde VOC CO2 CH2O Temperature Humidit
$31.95
BME680 Environmental Sensor BME680 Temperature and Humidity Atmospheric Pressure VOC Gas Detection
$24.95 Save $54.05 RRP: $79.00
5 in 1 Air Quality Monitor TVOC HCHO Temperature Humidity CO2 Meter, USB Rechargeable CO2 Detector
$22.95
MQ136 Hydrogen Sulfide Gas Sensor Module H2S Gas Detection Sensor Module High Sensitivity Sensor Mo
$26.95 Save $3.00 RRP: $29.95
BME688 Environmental Sensor BME688 Temperature and Humidity Atmospheric Pressure VOC Gas Detection
$42.95 Save $56.05 RRP: $99.00
Tuya Wifi Air Quality Monitor CO2 Detector Formaldehyde VOC CO2 CH2O Temperature Humidity Detector
$32.95 Save $5.00 RRP: $37.95
Risegun DM1308E Mini PM2.5 Dust+Temperature+Humidity Detector Exceeding Standard Alert (shipped with built-in battery)
$84.00 Save $20.00 RRP: $104.00
DEWIN Air Quality Tester, Indoor Air Quality Meter 5 In 1 PM2.5 HCHO Carbon Dioxide Detector Portable CO2 Monitor
$64.00 Save $20.00 RRP: $84.00
MH-Z19C Pin Probe Low-Power Infrared Carbon Dioxide Gas Sensor CO2 Gas Concentration Leak Detection Probe 400-5000 Ppm
$52.95 Save $26.05 RRP: $79.00
Gas Leak Detector 803 Oxygen Gas Detector Oxygen Gas Detector 803 Blue Digital Display Oxygen Gas L
$104.00 Save $5.00 RRP: $109.00
PD132 Single Channel Inductive Loop Detector for Vehicle, Parking Lot
$36.95 Save $12.00 RRP: $48.95
MQ137 Ammonia Gas Detection Sensor Module NH3 Gas Sensor Module
$15.95