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Shop the best prices on 8,732 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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161 - 192 of 3,200
6 in 1 Air Quality Detector for CO O2 Temperature Humidity Atmospheric Pressure Altitude, Monitor for Indoor and Travel
$189.00 Save $190.00 RRP: $379.00
Gastester Combustible Gas Detector Gas Leak Detector Natural Gas Detector Combustible Gas Analyzer
$40.95 Save $43.05 RRP: $84.00
Rm370 Carbon Monox Detector
$59.00 Save $60.00 RRP: $119.00
Indoor Co2 Sensor Co2 Meter Digital Air Detector Intelligent Air Quality Analyzer
$79.00 Save $140.00 RRP: $219.00
Gastester Combustible Gas Detector Gas Leak Detector Natural Gas Detector Combustible Gas Analyzer
$64.00 Save $65.00 RRP: $129.00
7 In 1 Air Quality Detector Carbon Dioxide Co2 Formaldehyde Dust Tvoc With Tuya Smart Wifi Link Time Recording Function
$774.00
St-8308 Indoor Formaldehyde Dust Pollution Pm2.5 Toxic Gas Detector With Alarm Charging
$924.00
Air Quality Monitor Indoor, Air Quality Detector, CO2 Monitor Black
$52.95 Save $11.05 RRP: $64.00
20-In-1 Tuya WIFI Air Quality Detector 3Pcs Subunits
$109.00 Save $40.00 RRP: $149.00
2C012,13 in 1 Tuya WIFI Air Quality Detector CO2 (with 5 slave units)
$104.00 Save $35.00 RRP: $139.00
Handheld Carbon Monoxide Meter, 80Db Light CO Leak Detector, Portable Handheld CO Detector, CO Gas Analyzer
$45.95 Save $13.05 RRP: $59.00
Alcohol Gas Concentration Sensor High Sensitivity Breathalyzer Module Smart Vehicle Detection DIY Projects
$74.00 Save $55.00 RRP: $129.00
5 In1 CO2 Meter Digital Temperature Humidity Tester Carbon Dioxide Detector Air Quality Monitor TVO
$19.95 Save $4.00 RRP: $23.95
SCD41 Gas Sensor Module Detects CO2 Carbon Dioxide Temperature B
$30.95 Save $4.00 RRP: $34.95
3X MH-Z19 MH-Z19C IR Infrared CO2 Sensor Module Carbon Dioxide Gas Sensor NDIR Accessories
$49.95 Save $29.05 RRP: $79.00
Oxygen Analyzer Professional Portable O2 Oxygen Concentration Meter Detector Flow Pressure Detection Meter Gas Detector
$149.00 Save $100.00 RRP: $249.00
Air Conditioning Refrigerant Leak Tester Leak Detector for R-134a R410a R407a R22 RLD-382P US Plug
$179.00 Save $30.00 RRP: $209.00
MICS-6814 Gas Sensor Carbon Monoxide CO NO2 NH3 Nitrogen Oxygen Air Quality Detection Numerical Sen
$49.95 Save $34.05 RRP: $84.00
3 in 1 CO2 Meter Air Quality Monitor Handheld 5000Ppm CO2 Monitor Measurement Carbon Dioxide / Detector S8601
$26.95
Natural Gas Detector and Carbon Monoxide CO Detector,Combustible Gas Detector Monitor for Co, Metha
$34.95 Save $8.00 RRP: $42.95
CO2 Infrared NDIR Sensor Air Quality Detector Digital Gas Analyzer
$47.95 Save $11.05 RRP: $59.00
MQ136 Hydrogen Sulfide Gas Sensor Module H2S Gas Detection Sensor Module High Sensitivity Sensor Module
$20.95 Save $14.00 RRP: $34.95
Radon Detector Monitor the Average Value of Air Radon Concentration Gas Detector Analyzing Tool Radon Detector
$149.00 Save $100.00 RRP: $249.00
Oxygen Analyzer Professional Portable O2 Oxygen Concentration Meter Detector 21%-95.6% O2 Meter Gas Detector EU Plug
$149.00 Save $100.00 RRP: $249.00
Gas Leak Detector Combustible Propane Methane Leak Warning EU Plug Combustible Gas Alarm Sensor for Home Security
$11.95 Save $7.00 RRP: $18.95
WiFi Tuya App Function Kitchen Natural Gas Leak Alarm Sensor Temperature LCD Digital Display Sound Siren
$27.95 Save $19.00 RRP: $46.95
Leak Detector for Freon CFC HFC Halogen Gas Refrigerant Detector Air Conditioner Refrigerant Detector Gas Meter
$41.95 Save $32.05 RRP: $74.00
ZE25-O3 Sensor Module for Monitoring, 0-10ppm Range with Multiple Output Options
$69.00 Save $20.00 RRP: $89.00
New DM125C WIFI Desktop CO2 Quality Detector LCD Display Temperature and Humidity Sensor Tester,Tuya
$129.00 Save $50.00 RRP: $179.00
Multifunctional Air Quality Meter Indoor HCHO TVOC Carbon Monoxide CO2 PM2.5 PM10 Temperature and Hu
$33.95 Save $6.00 RRP: $39.95
Portable Ultrasonic Oxygen Measuring Instrument,for Detection PSA Oxygen Generator Output Concentrat
$329.00 Save $110.00 RRP: $439.00
Indoor Air Quality Monitor,CO2 Monitor/Temperature/Formaldehyde Detector TVOC for Rooms,Grow Tents w
$20.95 Save $4.00 RRP: $24.95