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Shop the best prices on 8,045 great value gas detectors. Shopping for gas detectors is easy with Fruugo, with SALE discounts, offers and savings on Viewleaf, Other, GreenZech and more. Buy gas detectors online safely with Fruugo, with secure payment and fast shipping to Canada.

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2,785 - 2,816 of 3,200
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
$33.95 Save $4.00 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
$69.00 Save $15.00 RRP: $84.00
SCD41 Gas Sensor Module Detects CO2 Carbon Dioxide Temperature B
$31.95 Save $3.00 RRP: $34.95
MICS-5524 Air Quality Gas Sensor Module CO H2 Methane Ethanol Detection Board High Sensitivity for I2C for Arduino DIY
$15.95 Save $7.00 RRP: $22.95
-6000UV Halogen Leak Detector Freon Leak Detector R22 R410A R134A R1234YF Refrigerant Gas Air Condi
$37.95 Save $8.00 RRP: $45.95
Tuya WIFI Combustible Gas Detector Gas Alarm Digital Gas Detection Sensor Sound Alarm Smart Air Qua
$34.95 Save $9.00 RRP: $43.95
MQ137 Ammonia Gas Detection Sensor Module NH3 Gas Sensor Module
$15.95
CO2 Sensor 400-10000 ppm Carbon Dioxide Air Quality Detection
$18.95
Halogen Leak Detector Air Conditioning Refrigerant Leak Detector
$39.95
Air Quality Monitor Indoor, Air Quality Detector, CO2 Monitor Black
$41.95
Combustible Gas Detector, Combustible Gas Alarm, Air Quality Monitor
$33.95
SCD41 Gas Sensor Module Detects CO2 Carbon Dioxide Temperature D
$33.95
Portable Carbon Dioxide Detector Air Quality Tester CO2 Meter
$40.95
BENGGUO CO2 Bicycle Pump with Insulated Sleeve CO2 Bike Tire Inflator Schrader Presta Valve for Qui
$11.95 Save $3.00 RRP: $14.95
Co2 Air Detector Carbon Dioxide Detector Agricultural Production Co2 Monitor
$54.00
Wifi Natural Gas Sensor Combustible Household Smart Gas Alarm Detector Leakage Sensor Wifi Temperat
$35.95
Tuya Wifi Carbon Monoxide Detector with LCD Display 70DB Alarm Sound CO Gas Sensor Home Security Pr
$30.95
MQ136 Hydrogen Sulfide Gas Sensor Module H2S Gas Detection Sensor Module High Sensitivity Sensor Mo
$30.95
-Z19 -Z19E IR Infrared CO2 Sensor Module Carbon Dioxide Gas Sensor NDIR for CO2 Monitor 400-5000Ppm
$29.95
-6000 Freon Leak Detector Halogen Leak Detector Refrigerant Gas HVAC R22 R410A R134A R1234YF CFCs H
$34.95
Tuya WiFi 15in1 Air Quality Detector Household Portable PM0.3 PM1.0 PM2.5 PM10 CO CO2 TVOC HCHO Tes
$104.00
Gas Detector, Gas Alarm Sensor Methane Propane, Gas Leak Detector LCD Security, EU Plug
$28.95
3-in-1 Carbon Monoxide Detector CO Meter 0-1000PPM Portable Air Quality Monitor Alarm Gas Meter Tem
$32.95
Co2 Meter Pm2.5 Tvoc Co2 Hcho Temperature Humidity Detector Quality Monitor Co2 Sensor Analyzer White
$59.00 Save $5.00 RRP: $64.00
Toxic Gas Sensor Module Fixed Ozone Sensor
$149.00
Ski Snowboard Goggles Doublelayer Lenses Antifog Uv Protection Snow Goggles For Adultssilver
$94.00
20-In-1 Tuya WIFI Air Quality Detector 5Pcs Subunits
$139.00 Save $20.00 RRP: $159.00
20 in 1 Tuya WIFI Air Quality Detector CO/CO2/TVOC/HCHO/PM2.5/PM1.0/PM10/Temp/Humidity/Time/DateW/
$149.00 Save $60.00 RRP: $209.00