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Shop the best prices on 7,010 great value gas detectors. Shopping for gas detectors is easy with Fruugo, with SALE discounts, offers and savings on GreenZech, Habicare, 9eight5 and more. Buy gas detectors online safely with Fruugo, with secure payment and fast shipping to Canada.

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1 - 32 of 3,200
Ozone Analyzer O3 Ozone Gas Detector Intelligent Sensor Ozone Meter Air Quality Gas Monitor Temperature Humidity Tester
$32.95
MS6818 Cable Metal Pipe Finder Underground Tester Short Circuit Interruption Detection Cable Locato
$239.00 Save $30.00 RRP: $269.00
Air Quality Monitor 5 in 1 Air Quality Detector C02 Detector White
$16.95 Save $4.00 RRP: $20.95
3 in 1 CO2 Meter Air Quality Monitor Handheld 5000Ppm CO2 Monitor Measurement Carbon Dioxide ℃/℉ Det
$19.95 Save $18.00 RRP: $37.95
Mini CO2 Detector,Air Quality Monitor, Infrared CO2 Monitor
$52.95
Handheld Oxygen Concentration Detector Temperature and Humidity Detection Oxygen Detector Oxygen Test Exceeding Alarms
$109.00 Save $30.00 RRP: $139.00
Mq138 Formaldehyde Sensor Module Gas Detection Sensor Module -138 Aldehydes And Ketones Alcohols Ga
$47.95 Save $16.05 RRP: $64.00
Hay Moisture Tester, with Probe & Backlight LCD Display for Hay, Forage Grass, Alfalfa and Other Hays Moisture Testing
$74.00 Save $65.00 RRP: $139.00
WiFi Gas Alarm Plug in Combustible Gas Detector for Tuya APP Control Support Flammable Gases Methane Butane Detecting for Home RV
$33.95 Save $9.00 RRP: $42.95
Refrigerant Leak Detector with Flexible Gooseneck Probe, MultiMode Alarm for HVAC and Auto
$79.00 Save $50.00 RRP: $129.00
Wall Mounted Chlorine Gas Detector 020ppm with 0.01ppm Sensitivity and RealTime Monitoring
$1,699.00 Save $800.00 RRP: $2,499.00
Handheld Oxygen Air Quality Monitor High Precision Temperature Humidity O3 Sensor Gas Detector Indoor O3 Quality Monitor
$84.00 Save $35.00 RRP: $119.00
2.4G Wifi Natural Gas Sensor Combustible Smart LPG Gas Alarm Detector Leakage Sensor Wifi Temperature Detectors EU PLUG
$26.95
GN807 Combustible Gas Detector Alarm Digital Combustible Gas Detection 50-10000PPM Methane Flammable Gas Test Tool
$34.95 Save $16.00 RRP: $50.95
Formaldehyde Detectors Portable Indoor Air Quality Monitor With Display HCHO Detector Indoor Pollution Meter New Model
$149.00 Save $70.00 RRP: $219.00
Handheld Carbon Monoxide Meter, 80Db Light CO Leak Detector, Portable Handheld CO Detector, CO Gas A
$42.95 Save $16.05 RRP: $59.00
CO2 Detector Sensor 5-in-1 Air Quality Monitor with Temperature Humidity Meter for Office Hotel Rest
$54.00 Save $95.00 RRP: $149.00
3 in 1 CO2 Meter Air Quality Monitor Handheld 5000Ppm CO2 Monitor Measurement Carbon Dioxide / Detector S8601
$22.95
CO2 Air Detector Carbon Dioxide Detector Agricultural Production Greenhouse CO2 Monitor White
$29.95 Save $6.00 RRP: $35.95
Handheld Combustible Gases Leak Detector Natural Gases Leakage Analyzer Tester Portable Gases Leak L
$94.00 Save $25.00 RRP: $119.00
Radon Detector Monitor Analyzing Tool Radon Detector
$159.00 Save $100.00 RRP: $259.00
3-In-1 CO Carbon Monoxide Monitor CO Temperature and Humidity Detector CO Air Quality Monitor HD LED Screen Orange
$52.95 Save $16.05 RRP: $69.00
Handheld Oxygen Air Quality Monitor High Precision Temperature Humidity O3 Sensor Gas Detector Indo
$99.00 Save $5.00 RRP: $104.00
6in1 Digital Wifi Water Quality Tester PH/EC/TDS/SALT/G.S/Temp Meter Water Analyzer APP Online Remo
$119.00 Save $20.00 RRP: $139.00
Wifi Natural Gas Sensor Tuya Smart Alarm Gas Leakage Detector Fire Security Digital LCD Temperature Display
$27.95 Save $16.00 RRP: $43.95
Air Quality Detector, Carbon Monoxide Temperature Humidity Detector
$40.95
Portable Carbon Dioxide Detector Air Quality Tester CO2 Meter
$43.95
Gas Leak Detector Combustible Propane Methane Leak Warning EU Plug Combustible Gas Alarm Sensor for Home Security
$11.95 Save $13.00 RRP: $24.95
Ammonia Gas Detectors NH3 Gas Analyzers Meter Alarm Device Digital Gas Leak Detectors 0-100PPM
$199.00
MH-Z19 MH-Z19E IR Infrared CO2 Sensor Module Carbon Dioxide Gas Sensor NDIR for CO2 Monitor 400-5000Ppm UART PWM(A)
$43.95
Carbon Dioxide Controller Single Channel Split Probe CO2 Monitor CO2 Pressure Reducer Valve for Greenhouse EU Plug C
$279.00
2C012,13 in 1 Tuya WIFI Air Quality Detector CO2 (with 5 slave units)
$109.00