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Shop the best prices on 6,451 great value gas detectors. Shopping for gas detectors is easy with Fruugo, with SALE discounts, offers and savings on GreenZech, Habicare, Ebox and more. Buy gas detectors online safely with Fruugo, with secure payment and fast shipping to Canada.

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33 - 64 of 3,200
Carbon Dioxide Detector Black Far Infrared Air Quality Monitor with Temperature Humidity Testing for Home NO.1800
$74.00 Save $30.00 RRP: $104.00
Carbon Dioxide Sensor CO2 Concentration Sensor Agricultural Greenhouse CO2 concentration Detector Transmitter NO.8560
$179.00 Save $70.00 RRP: $249.00
BENETECH Gas Detector Combustible Gas Carbon Monoxide Alarm LCD High Accuracy Sound Light Alarm CO Monitor NO.0111
$149.00 Save $50.00 RRP: $199.00
5V Gas Monitor Meter USB Handheld Red with Color Screen Portable Freon Detector for Chemical Industry Refrigerant NO.6225
$219.00 Save $80.00 RRP: $299.00
5V USB Handheld Nitric Oxide Gas Detector Harmful Gas NO Concentration Alarms 0250PPM NO.6249
$409.00 Save $165.00 RRP: $574.00
Combustible Gas Detector Alarm Portable Gas Leak Tester Universal for Factories Garages E2U911
$59.00 Save $25.00 RRP: $84.00
5V USB Handheld Gas Leakage Detector Combustible Gas Detector Portable Detection Tool with Color Display Red NO.6218
$189.00 Save $80.00 RRP: $269.00
Gas Detector Handheld Rubber Steel Alloy ABS for Testing Automobile Tires Nitrogen Purity NO.25182
$549.00 Save $225.00 RRP: $774.00
Oxygen Analyzer Professional Portable O2 Oxygen Concentration Meter Detector Flow Pressure Detection Meter Gas Detector
$149.00
MT07WT 6-in-1 Indoor Air Quality Monitor Portable PM2.5 Tester Household HCHO TVOC CO2 Temperature
$24.95 Save $3.00 RRP: $27.95
Water Leak Detector-flood Detector Water Alarm Wireless Water Detectors With Sound And Light Alarm,
$54.00 Save $115.00 RRP: $169.00
Three-in-one semiconductor carbon dioxide detector, air quality monitoring CO2 air detector.
$59.00 Save $45.00 RRP: $104.00
12v Gas Detector Sensor Alarm Propane Butane Lpg Natural Motor Home Camper 1Pcs
$59.00 Save $50.00 RRP: $109.00
Portable Propane Methane and Natural Gas Leak Detector Combustible Gas Tester Meter Sniffer with Sound Light Alarm Sensitive Adjustable
$59.00 Save $25.00 RRP: $84.00
HLW-100 4-in-1 Air Quality Detector Formaldehyde CO2 PM2.5 PM10 Tester Smart Air Monitor Real-Time
$45.95 Save $8.05 RRP: $54.00
CO Gas Sensor Carbon Monoxide Sensor UART Digital Output SC16-CO
$24.95 Save $7.00 RRP: $31.95
Freon Leak Detector Halogen Gas Analyzer Air Conditioning Gas Detector Refrigerant Leak R134a CFCs
$64.00 Save $10.00 RRP: $74.00
US PLUG,Portable Ammonia Gas Detector,0-200 PPM Monitor with Temperature Humidity Tester for Farm,P
$189.00 Save $10.00 RRP: $199.00
CO Gas Sensor Carbon Monoxide Sensor UART Digital Output SC16B-CO (0-1000PPM)
$22.95 Save $6.00 RRP: $28.95
US PLUG,Gas Monitor for O2,CO,H2S,Combustible Gas Tester,4 Gas Leak Detector with Sound,Light&Vibra
$129.00 Save $10.00 RRP: $139.00
Air Quality Monitor 5 in 1 Air Quality Detector C02 Detector HCHO TVOC Tester LCD Temperature Humid
$18.95 Save $2.00 RRP: $20.95
Tuya Smart WiFi Data Storage Oxygen Concentration Air Detector Outdoor Camping Carbon Monoxide Temp
$129.00 Save $60.00 RRP: $189.00
Formaldehyde Monitor Carbon Dioxide Detector TVOC Detector Temperature and Humidity CO 2 Air Qualit
$18.95 Save $45.05 RRP: $64.00
Air Monitor Co2 Carbon Dioxide Detector Air Quality Temperature Humidity Monitor Fast Measurement M unbrand
$59.00 Save $20.00 RRP: $79.00
WiFi Combustible Gas Sensor USB Powered Smart LPG Gas Alarm Detector Leakage Sensor for Combustible Gas
$64.00 Save $40.00 RRP: $104.00
DEWIN Air Quality Detector, Air Quality Detector Meter PM2.5 CO2 HCHO TVOC Temperature Humidity Monitor Meter for Home
$109.00 Save $20.00 RRP: $129.00
SGP41 VOC Sensor Module Dual Gas Environment Detection Industrial Wide Temperature Range STEMMA QT/Qwiic Interface
$17.95
Portable Household Gas Alarm Natural Gas Detector LCD Display Combustible Gas Alarm EU Plug
$29.95
CY-12C Portable Oxygen Analyzer Oxygen Concentration Tester Handheld Oxygen Tester Analysis Instruments
$139.00
Gas Leak Detector with High-Precise Sensor, Flexible Probe, Visual/Audible Alarm, Portable for Home/Industrial Use
$41.95
Air Quality Monitor Indoor,Portable Detector,Real Time Monitoring,Large Display with Voice Alert,Ho
$64.00 Save $10.00 RRP: $74.00
Digital Carbon Dioxide Controller CO2 Monitor NDIR Sensing Probe 0-5000ppm Concentration Tester for
$309.00