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Shop the best prices on 8,021 great value gas detectors. Shopping for gas detectors is easy with Fruugo, with SALE discounts, offers and savings on Viewleaf, GreenZech, Habicare 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
3X MH-Z19 MH-Z19C IR Infrared CO2 Sensor Module Carbon Dioxide Gas Sensor NDIR Accessories
$52.95
MG811 Carbon Dioxide Module: CO2 Gas Concentration Detection Module,Voltage Type,0-2V Voltage Output,MG811 Sensor Module
$40.95
Mini Handheld Lanyard Portable Ndir Medidor De Co2 Alarm Carbon Dioxide Detector Air Quality Sensor Monitor Co2 Meter
$139.00 Save $70.00 RRP: $209.00
Co2 Detector Indoor Carbon Dioxide Temperature Meter Ambient Air Quality Monitor
$179.00 Save $90.00 RRP: $269.00
Co2 Detector Indoor Carbon Dioxide Temperature Meter Ambient Air Quality Monitor
$179.00 Save $90.00 RRP: $269.00
Black Carbon Monitor Carbon Detector Multi-functional Detector Carbon Dioxide Detector Thermometer And Hygrometer Air Quality Indoor Monitor
$359.00 Save $190.00 RRP: $549.00
Smart Halogen Leak Detector Gas Detector Freon Gas Analyzer CFC HFC Halogen Gas Refrigerant Leak Detector Air Conditioning R22a Fsu
$94.00 Save $45.00 RRP: $139.00
High Sensitivity Portable Smart Desktop Air Monitor Indoor Air Quality Home Analyzer Co2 Sensor Carbon Dioxide Detector
$179.00 Save $90.00 RRP: $269.00
Lcd Gas Analyzer Tester Meter Automotive Combustible Gas Sensor Air Quality Monitor Gas Leak Detector With Sound Shock Alarm
$209.00 Save $110.00 RRP: $319.00
Portable Handheld Meter O3 Detector Yzer Sensor Gas Detector
$259.00 Save $120.00 RRP: $379.00
Air Quality Monitor For Home | Indoor CO2 Monitoring | Precise CO2 Safety Meter For Grow Tents And Bedrooms
$54.00 Save $30.00 RRP: $84.00
Natural Gas Leak Detector For Home Use, Detects LPG, Methane, Propane, Butane, City Natural Gas Alarm
$54.00 Save $15.00 RRP: $69.00
HT66 Gas Leak Detector for Natural Methane 50-1000 PPM with Sound Alarm and Precise Leak Location M HT66
$74.00 Save $35.00 RRP: $109.00
Portable Air Detector with Clear Display Accurate CO2 Monitor for Grow Tents Bedrooms
$54.00 Save $30.00 RRP: $84.00
Luftqualitätsmonitor Kohlendioxid Tester für Growzelte und Schlafzimmer - Präzises Luftdetektor Messgerät
$54.00 Save $30.00 RRP: $84.00
Air Quality Monitor, Portable CO2 Detector with Clear Display for Home, Bedroom, and Grow Tent Use
$45.95 Save $23.05 RRP: $69.00
Innenraumluftqualitatsdetektor Real-Time Portable 10-In-1 Monitor With Alarm Indoor Air Quality Tester Area B
$79.00 Save $40.00 RRP: $119.00
Air Quality Monitor for Home | CO2 Detection Device for Grow Tents and Bedrooms | Accurate Air Quality Measurement
$54.00 Save $30.00 RRP: $84.00
Luftqualitätsmonitor für Kohlendioxid - Präzises Messgerät für Growzelte und Schlafzimmer, Echtzeit-Überwachung, digital
$54.00 Save $30.00 RRP: $84.00
CO2 Gas Sensor Module with Temperature Humidity Detection I2C for Air Quality Monitoring
$104.00 Save $55.00 RRP: $159.00
Rm370 Carbon Monox Detector
$79.00 Save $40.00 RRP: $119.00
BRJ-502D Plug-in Digital Natural Gas Detector High Sensitive Home Gas Alarm Combustible Gas Leak Monitor for Home Kitchen
$36.95 Save $1.00 RRP: $37.95
Combustible Gas Detector Gas Alarm Digital Combustible Gas Detection Instrument Gas Leak Tester Intelligent Air Quality Detector with Sound Alarm
$35.95 Save $68.05 RRP: $104.00
Household 1.9inch 240*280 Resolution Color Display Air Quality Detector High Sensitive Semiconductor Sensors 5in1 HCHO TVOC CO2 Temperature Humidity T
$34.95 Save $6.00 RRP: $40.95
Kflammable Combustible Gas Detector Handheld Portable Gas Leak Tester Gas Leakage Location Determine
$489.00
Multi Gas Detector Gas Meter O2 H2S CO LEL 4 in 1 Oxygen Hydrogen Sulfide Carbon Monoxide Combustibl
$159.00 Save $60.00 RRP: $219.00
Tuya Wifi Air Quality Monitor Smart Home CO2 Detector, Wifi
$26.95 Save $6.00 RRP: $32.95
Carbon Dioxide Sensor Infrared CO2 Concentration Detection 5000ppm Gas HAVC RV Smart Home Air Quality Monitor
$35.95 Save $28.05 RRP: $64.00
Air Quality Monitor Co2 Meter Ndir Gas Analyzer Carbon Dioxide Meter Gas Detector Fine Dust Meter Pm2.5 Pm10 Hcho Tvoc Detector-xinhan
$459.00 Save $690.00 RRP: $1,149.00
Co2 Detector, 400 To 5000 Ppm Home Co2 Sensor, 3 In 1 Co2 Detector Meter, Air Quality Monitor With Self-calibration Function For
$149.00 Save $220.00 RRP: $369.00
Flammable Gas Analyzer Combustible Gas Detector With Sound And Light Alarm Flexible Probe Leak Location Determine Meter As8800l
$74.00
5 In 1 Air Detector Tvoc Hcho Carbon Dioxide Co2 Temperature Humidity U02
$84.00