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Shop the best prices on 7,294 great value gas detectors. Shopping for gas detectors is easy with Fruugo, with SALE discounts, offers and savings on Viewleaf, GreenZech, Other and more. Buy gas detectors online safely with Fruugo, with secure payment and fast shipping to Canada.

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321 - 352 of 7,294
SCD40 Gas Sensor Module Detects CO2 Carbon Dioxide Temperature and Humidity 2 in 1 Sensor
$33.95
Tuya WiFi 15-in-1 Air Quality Detector Household Portable PM0.3 PM1.0 PM2.5 PM10 CO CO2 Tester with
$44.95 Save $9.05 RRP: $54.00
Tuya WiFi 15 in 1 Air Quality Detector Household Portable PM0.3 PM1.0 PM2.5 PM10 CO CO2 TVOC HCHO T
$59.00
Halogen Leak Detector Air Conditioning Refrigerant Leak Detector HVAC R22 R410A R134A CFCs HCFC Fre
$54.00
NDIR CO2 Sensor Infrared Carbon Dioxide Sensor Module with Serial Port PWM Analog Output CO2 Gas De
$47.95 Save $1.05 RRP: $49.00
Indoor CO2 Monitor Temperature Humidity Air Quality Detector Monitor
$74.00 Save $105.00 RRP: $179.00
Air Quality Sensor High Sensitivity Particle Concentration Laser Sensor for Carbon Dioxide Temperature Humidity
$74.00 Save $15.00 RRP: $89.00
Multi Gas Detector Gas Meter O2 H2S CO 4 in 1 Oxygen Hydrogen Sulfide Carbon Monoxide Combustible G
$219.00 Save $40.00 RRP: $259.00
Handheld Prefession Accurate Digital Oxygen Detector Rechargeable O2 Tester
$139.00 Save $30.00 RRP: $169.00
Pth-4 Air Quality Tester Co2 Detector Alarm Pth-5 Gas Analyzer Air Quality Monitor Usb High Accuracy
$269.00 Save $140.00 RRP: $409.00
Halogen Detector Gas Detector Freon Leak Detector Gas Leak Detector Hcfcs Testing Tools Portable 1 P
$129.00 Save $60.00 RRP: $189.00
Carbon Dioxide Sensor Module CO2 Temperature Humidity Monitor Detection 50ppm Accuracy
$64.00 Save $15.00 RRP: $79.00
Air Quality Monitoring Carbon Dioxide Detector Ndir Channel Sensor 0-5000 Ppm Range
$309.00 Save $160.00 RRP: $469.00
Wifi Gas Sensor Combustible Natural Gas Leak Detector App Alert Push Smart Alarm Sensor For Home GreenZech
$104.00 Save $195.00 RRP: $299.00
20-In-1 Tuya WIFI Air Quality Detector 3Pcs Subunits
$109.00
SMART SENSOR Handheld Digital Oxygen Detector USB Rechargeable Automotive O2 Sensor Tester Monitor L
$159.00 Save $30.00 RRP: $189.00
16in1 Air Quality Detector CO2 Detector TVOC HCHO PM2.5 PM10 PM1.0Detector Humidity Temp Intelligent
$139.00 Save $40.00 RRP: $179.00
CO2 Monitor Air Quality Detector Fashion for CO2 Temperature Humidity, Easy Calibration Multiple Alarm Home Air Quality Monitor Carbon Dioxide Detecto
$149.00 Save $70.00 RRP: $219.00
Carbon Dioxide Controller Single Channel Split Probe CO2 Monitor CO2 Pressure Reducer Valve for Greenhouse EU Plug B
$269.00
Rm370 Carbon Monox Detector
$59.00 Save $60.00 RRP: $119.00
Oxygen Hydrogen Sulfide Carbon Monoxide Combustible Gas Leak Detector
$149.00
P M2.5 P M10 Monitor Multifunctional Air Quality Monitor Formaldehyde PM2.5 PM10 Detector for Home Office Use
$69.00 Save $50.00 RRP: $119.00
Handheld Radiation Detector, Radiation Monitor 0.01μSv/h‑50msv/h 1800mAh 2.4 in TFT LCD Screen Monitor X γ β Rays Radiation Tester
$169.00 Save $100.00 RRP: $269.00
St-8308 Indoor Formaldehyde Dust Pollution Pm2.5 Toxic Gas Detector With Alarm Charging
$574.00
Top Zigbee/tuya Wifi Smart Air Box Carbon Dioxide Detector Co2 Gas Sensor Formaldehyde Voc Temperature Humidity Sensor App
$84.00
Air Conditioning Leak Detection Kit Refrigerant Leakage Tester Detector Kit Practical Tool with UV Lamp for Vehicles and Cooling Appliances
$84.00 Save $45.00 RRP: $129.00
5802392206 5801799729 5801471119 Nitrogen Oxide Sensor
$84.00
Handheld Air Quality Tester Professional Gas Analyzer Smog/dust/formaldehyde Air Quality Detector Co2 Meter Monitor 123/126/128s
$1,049.00
5 in 1 Air Quality Monitor TVOC HCHO Temperature Humidity CO2 Meter, USB Rechargeable CO2 Detector
$59.00 Save $40.00 RRP: $99.00
Smart Sensor Ar8200 Professional Gas Analyzer Co2 Meter Monitor Gas Detector Carbon Dioxide Detector
$574.00
Ht609 Gas Leak Detector Combustible Gas Detector with LCD Display Sound and Light Alarm Ambient Temp
$104.00 Save $125.00 RRP: $229.00
Mini Indoor Dioxide Concentrat Detector Portable Moning Co2 Detector
$139.00 Save $160.00 RRP: $299.00