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Shop the best prices on 8,065 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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1,441 - 1,472 of 3,200
3X MH-Z19 MH-Z19C IR Infrared CO2 Sensor Module Carbon Dioxide Gas Sensor NDIR Accessories
$64.00
Carbon Dioxide Sensor Module CO2 Temperature Humidity Monitor Detection 50ppm Accuracy
$59.00 Save $20.00 RRP: $79.00
NDIR CO2 Sensor Infrared Carbon Dioxide Sensor Module with Serial Port PWM Analog Output CO2 Gas De
$40.95 Save $38.05 RRP: $79.00
-Z19 -Z19E IR Infrared CO2 Sensor Module Carbon Dioxide Gas Sensor NDIR for CO2 Monitor 400-5000Ppm
$54.00 Save $45.00 RRP: $99.00
WiFi Smart Air Quality Monitor CO2 Meter TVOC HCHO PM2.5 Tester Digital CO2 Sensor Formaldehyde Gas
$79.00
SCD40 Gas Sensor Module Detects CO2 Carbon Dioxide Temperature and Humidity 2 in 1 Sensor
$79.00
WIFI Air Quality Monitor LCD Color Screen 1000mAh USB PM2.5 Temperature Humidity Meter Tester Thermometer
$109.00 Save $20.00 RRP: $129.00
Auspicious-wi-fi Water Leak Detector, 130db Smart Flood Detector, Water Detector Wireless Water Alarm Sensor, Push Notifications To Tuya Smartphones/s
$69.00 Save $15.00 RRP: $84.00
CO2 detector, Indoor Air Quality Monitor, 3-in-1 CO2 Meter,Therm La Mode CO2 Sensor with Temperature & Humidity, NDIR Carbon Dioxide Detector, Auto Ca
$119.00 Save $140.00 RRP: $259.00
Multi Gas Detector Gas Meter O2 H2S CO 4 in 1 Oxygen Hydrogen Sulfide Carbon Monoxide Combustible Gas Leak Detector
$169.00
Ndir Carbon Dioxide Co2 Sensor Module Mh-z14a Serial Port Pwm Analog Output 0-5000ppm
$159.00
2X 9 In1 Air Quality Monitor Meter Carbon Dioxide Detector TVOC HCHO PM2.5 PM1.0 PM10 Temperature H
$109.00
Smart Controller Dual Channel Ndir Co2 Sensor Day Night Carbon Dioxide Detector 0-5000ppm For Greenhouse Hydroponics
$529.00
Rubber Ball Bladder Practical Replacement Internal Bladder for Gas Sampling
$22.95 Save $5.00 RRP: $27.95
WiFi Air Quality Detector CO2 HCHO TVOC PM2.5 CO Monitor Multifunctional Digital Display Air Tester
$104.00 Save $35.00 RRP: $139.00
SMART SENSOR Professional PH Meter Portable Water Quality Tester Acidimeter PH818
$79.00
2x LCD CO Carbon Monoxide Detector
$54.00 Save $40.00 RRP: $94.00
Disposable H2s Meter Hydrogen Sulfide Gas Detector Mini Size 0-100ppm
$419.00
Gas Detector, LPG/Natural Gas/Carbon Gas Leak Detector, Plug-in Sensor Monitor (White)
$30.95 Save $83.05 RRP: $114.00
Oxygen Sensor AO-02 Compatible with AO2 AA428-210 AO2PTB-18.10
$89.00 Save $70.00 RRP: $159.00
WiFi Smart Air Quality Monitor CO2 Meter TVOC HCHO PM2.5 Tester Digital CO2 Sensor Formaldehyde Gas Detector Tuya APP A
$74.00
Refrigeration gas leak detector freon tester portable halogen leakage checker with high sensitivity
$94.00 Save $15.00 RRP: $109.00
Air Quality Monitor Tester, Portable CO2 Detector CO2, TVOC, HCHO, Humidity& Temperature Particle Counter for Home Car
$59.00 Save $10.00 RRP: $69.00
Formaldehyde Detector Quality Monitor Pm 2.5 Portable Display Pollution Meter Mini Dust Tester Car
$129.00 Save $30.00 RRP: $159.00
Methane Butane-combustible Gas Natural-gases Leak Detector Quick-response Alarm
$39.95 Save $29.05 RRP: $69.00
Mini Smart WIFI Mini CO Detector Indoor Air Quality Monitor Portabl CO Temperature Humidity Meter Monitor CO Tester
$46.95
6 in 1 PM2.5 PM10 HCHO TVOC CO CO2 Air Quality Detector CO CO2 Formaldehyde Monitor Home Office Air Quality Tester,White
$24.95
5 in 1 Air Quality Monitor TVOC HCHO Temperature Humidity CO2 Meter, USB Rechargeable CO2 Detector Black
$19.95
Mobile Co2 Monitor Ndir Sensor Carbon Dioxide Detector Indoor Co2 Testing Manager Ndir Sensor With
$74.00 Save $20.00 RRP: $94.00
DR850 4 in 1 Portable Multi Gas Detector IP65 Waterproof Gas Leak Meter for O2 / CO / H2S / COMB
$199.00
Portable Ozone Analyzer Multifunctional Intelligent O3 Ozone Meter Gas Detector Sensor Quality Poll
$139.00
Tuya Wifi Air Quality Monitor CO2 Detector Formaldehyde VOC CO2 CH2O Temperature Humidity Detector
$33.95 Save $5.00 RRP: $38.95