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Shop the best prices on 8,045 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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2,657 - 2,688 of 3,200
C8D Dual-Channel (0-5000 Ppm) CO2 Sensor High-Precision Infrared Carbon Dioxide CO2 Concentration Detection Module
$24.95
Refrigerant Leak Detector Tester with High Accuracy Quick Response Heated Diode Sensor Universal
$309.00 Save $90.00 RRP: $399.00
Combustible Gas Detector Alarm Portable Gas Leak Tester Universal for Factories Garages E2U911
$59.00 Save $25.00 RRP: $84.00
Gas Leak Detector Natural Gas Detector Portable Handheld Gas Sniffer with Sound and Indicator Light
$21.95
Air Quality Monitor Formaldehyde Detector TVOC PM2.5/PM10 Tester Multifunctional Air Gas Detector
$59.00
Portable Air Quality Monitor Indoor CO2 Detector 5 in 1 Formaldehyde HCHO TVOC Tester LCD
$31.95
Pth-5 Monitors Carbon Dioxide Ndir Co2 Sensor Comfortable Environment With Temperature And Humidity
$99.00 Save $140.00 RRP: $239.00
4-in-1 Carbon Monoxide Detector,portable Carbon Monoxide Carbon Dioxide Monitor Air Quality Monitor
$109.00 Save $160.00 RRP: $269.00
1200mah Air Quality Detector Co2 Meter Carbon Dioxide Tvoc Hcho Value Electricity Quantity Temperatu
$119.00 Save $160.00 RRP: $279.00
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
5v 1200mah Co2 Tester Hdo5 Air Quality Detector Electricity Temperature Humidity Display Black
$189.00 Save $280.00 RRP: $469.00
Portable Continuous Quantitative Analysis Ammonia Gas Hold Peak 9000B Detector 0-100ppm Rechargeable with LCD Screen
$489.00
Formaldehyde Detector, Formaldehyde Monitor, Air Quality Tester for Indoor Home
$25.95 Save $8.00 RRP: $33.95
Portable Air Quality Detector, Rechargeable and Portable HCHO TVOC Tester
$34.95 Save $10.00 RRP: $44.95
Portable Air Quality Detector, CO2, TVOC, HCHO, Humidity, Temperature, 5 in 1, Multifunctional Indoor Air Quality Tester, Black
$29.95 Save $9.00 RRP: $38.95
Indoor Air Quality Monitor,CO2 Monitor/Temperature/Formaldehyde Detector TVOC for Rooms,Grow Tents with Bracket White
$24.95 Save $17.00 RRP: $41.95
4-in-1 Gas Detector, Toxic and Hazardous Gas Tester Portable Combustible Gas Detector and Alarm
$169.00 Save $90.00 RRP: $259.00
Formaldehyde Sensor Module Gas Detection Sensor Mq138 Mq-138 Aldehydes And Ketones Alcohols Gas Sensor
$79.00
Portable Ammonia Gas Detector,0-200 PPM Rechargeable Ammonia Gas Monitor,Digital Air Quality NH3 Gas Meter US Plug
$229.00 Save $130.00 RRP: $359.00
Smart Sensor AS8800L Gas Detector Protable Mini Combustible Gas Leakage Location Determine Tester with Sound and Light Alarm
$35.95 Save $15.00 RRP: $50.95
Propane Detector 12V LPG Natural Gas Sensor Leak Alarm 85DB Siren for Car RV Home Digital Propane Tester Meter(Black)
$36.95 Save $16.00 RRP: $52.95
2.4G Wifi Natural Gas Sensor Combustible Smart LPG Gas Alarm Detector Leakage Sensor Wifi Temperature Detectors EU PLUG
$35.95 Save $23.05 RRP: $59.00
BME680 Environmental Sensor Module STEMMA QT/Qwiic Interface Temperature/Humidity/Air Pressure/Gas Detection
$22.95 Save $14.00 RRP: $36.95
ZE25-O3 Ozone Sensor Module for Ozone Monitoring, 0-10ppm Range with Multiple Output Options
$74.00 Save $45.00 RRP: $119.00
High-Precision Gas Tester Rechargeable Portable HCHO Alarm Trending TVOC Air Quality Formaldehyde Detector
$149.00 Save $80.00 RRP: $229.00
4X Oxygen Sensor AO-02 Gas Detector Compatible with AO2 AA428-210 AO2PTB-18.10
$139.00 Save $90.00 RRP: $229.00
CO2 Monitor, CO2 Detector with NDIR Sensor 400-5000 PPM, Sound Alarm, Temperature, Humidity, Powered by Rechargeable Batteries
$84.00 Save $45.00 RRP: $129.00
5 In 1intelligent Air Quality Monitor Co2 Sensor Mini Gas Detector For Tvoc Hcho Co2 Gas Analyzer Thermometer & Hygrometer Home
$94.00 Save $55.00 RRP: $149.00
4-Gas Monitor Meter Tester Analyzer Portable Gas Detector CO Monitor Digital Toxic Gas Detector Rechargeable LCD Display Sound Light Vibration Alarm A
$239.00 Save $140.00 RRP: $379.00
Air Quality Monitor CO2 Monitor Formaldehyde Detector TVOC/Temp./Humidity Indoor with Buzzer Prompt
$74.00 Save $45.00 RRP: $119.00
Temperature Humidity Meter, Air Quality Monitor, Co2 Detector, A
$199.00 Save $100.00 RRP: $299.00
Digital Formaldeyde Detector Handled Air Quality Monitor Hcho Tvoc Pm1.0 Pm2.5 Pm10 Detector Multifu
$229.00 Save $120.00 RRP: $349.00