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Shop the best prices on 8,109 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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97 - 128 of 3,200
SGP40 VOC Sensor,Digital SGP40 VOC (Volatile Organic Compounds) Gas Sensor, I2C Bus
$27.95 Save $17.00 RRP: $44.95
Tuya WIFI Combustible Gas Detector Gas Alarm Gas Detection Sensor,B
$28.95
Portable Ozone Analyzer Intelligent O3 Ozone Meter Gas Detector
$129.00
MQ137 Ammonia Gas Detection Sensor Module NH3 Gas Sensor Module Household Appliance Accessories Ana
$20.95 Save $5.00 RRP: $25.95
O2 Gas Detector Oxygen Detector Intelligent SENSOR AR8100 Oxygen Detector Rechargeable LCD O2 Gas Meter Oxygen Monitor
$159.00 Save $20.00 RRP: $179.00
5V USB Handheld Nitric Oxide Gas Detector Harmful Gas NO Concentration Alarms 0‑250PPM
$359.00 Save $110.00 RRP: $469.00
Type A SMART SENSOR ST8990 Portable Multi Gas Detector 4-in-1 O2 LEL CO H2S Gas Detector Tester
$259.00 Save $230.00 RRP: $489.00
Portable gas alarm for RV and camper
$59.00 Save $35.00 RRP: $94.00
Mini Smart WIFI Mini CO Detector Indoor Air Quality Monitor Portabl CO Temperature Humidity Meter Monitor CO Tester
$43.95 Save $40.05 RRP: $84.00
GM8802 CO2 Gas Detector LCD Temperature and Humidity Monitoring Carbon Monoxide Meter AC 100240V
$229.00 Save $345.00 RRP: $574.00
NOYAFA Portable Formaldehyde Detector Indoor Air Quality Monitor HCHO and TVOC Monitor with ble Alarm LED Indicator for Home HVAC System
$31.95 Save $9.00 RRP: $40.95
Diffusion Type Single Gas Detector Ozone Detector,black
$349.00 Save $500.00 RRP: $849.00
Gas Leak Detector Combustible Propane Butane Methane Leak Warning Combustible Gas Alarm Sensor for Home Security EU Plug
$13.95 Save $9.00 RRP: $22.95
Handheld Carbon Monoxide Meter, 80Db CO Leak Detector,CO Gas Analyzer
$45.95 Save $18.05 RRP: $64.00
SCD40 Gas Sensor Module Detector CO2 Carbon Dioxide
$54.00 Save $20.00 RRP: $74.00
SCD41 Gas Sensor Module Detects CO2 Carbon Dioxide Temperature C
$41.95 Save $17.05 RRP: $59.00
MOES Bluetooth Tuya Smart Carbon Dioxide Meter Temperature Humidity Sensor Digital 3-in-1 Air Quality Portable Meter
$69.00 Save $25.00 RRP: $94.00
Mini Carbon Monoxide Detector CO Air Quality Monitor HD LED Screen
$59.00 Save $20.00 RRP: $79.00
Co2 Air Detector Carbon Dioxide Detector Agricultural Production Greenhouse Co2 Monitor White yyds
$45.95 Save $28.05 RRP: $74.00
Combustible Gas Detector, Combustible Gas Alarm, Temperature and Humidity Detector, Household Air Q
$40.95
Portable Air Quality Detector Multifunctional Digital Carbon Dioxide Monitor For Home Office-mocha Black
$37.95 Save $11.00 RRP: $48.95
Co2 Air Detector Carbon Dioxide Detector Agricultural Production Greenhouse Co2 Monitor White
$22.95 Save $14.00 RRP: $36.95
Mq136 Hydrogen Sulfide Gas Sensor Module H2s Gas Detection Sensor Module High Sensitivity Sensor Mo
$46.95 Save $17.05 RRP: $64.00
Connected Household Gas Detectorwifi Gas Detector Gas Alarm, White, One Piece
$84.00 Save $45.00 RRP: $129.00
Gastester Combustible Gas Detector Gas Leak Detector Natural Gas Detector Combustible Gas Analyzer
$43.95 Save $35.05 RRP: $79.00
in 1 Air Quality Detector LCD Large Screen Co2 Meter Pm2.5 Pm10 Hcho Tvoc Co Co2 Co Carbon Dioxide Formaldehyde Monitor
$114.00 Save $165.00 RRP: $279.00
Lcd Carbon Monoxide Co Detector Poisoning Gas Sensor Monitor Warning Alarm Set
$20.95 Save $16.00 RRP: $36.95
Mini Indoor Carbon Dioxide Concentration Detector Portable Air Quality Monitoring CO2 Detector
$84.00 Save $55.00 RRP: $139.00
5 In 1 Tuya Air Quality Monitor Photoelectric Carbon Dioxide Detector Fire Alarm Co2 Temperature Hu
$119.00 Save $90.00 RRP: $209.00
Air Quality Monitor,7-in-1 Air Monitor,Tester for Carbon Dioxide,TOVC,HCHO, PM2.5,PM10
$239.00 Save $250.00 RRP: $489.00
Testo 316-3 Refrigerant Leak Detector Can Detect Cfcs, Hfcs, Fcs,0563 3163
$699.00
BRJ-502D Plug-in Digital Natural Gas Detector High Sensitive Home Gas Alarm Combustible Gas Leak Mon unbrand
$59.00 Save $15.00 RRP: $74.00