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Shop the best prices on 7,465 great value gas detectors. Shopping for gas detectors is easy with Fruugo, with SALE discounts, offers and savings on Viewleaf, GreenZech, Other and more. Buy gas detectors online safely with Fruugo, with secure payment and fast shipping to Canada.

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225 - 256 of 7,465
CO2 Monitor Meter Sensor, Air Quality Carbon Dioxide Monitor (White)
$41.95 Save $4.00 RRP: $45.95
Indoor CO2 Detector, CO2 Carbon Dioxide Detector, CO2 Meter Indoor Air, Desktop CO2 Detector for Gym, Office, Classroom, Easy Digital Display
$49.00 Save $130.00 RRP: $179.00
2025 Latest Model Oxygen Sensor AO-02 Gas Detector Compatible with AO2 AA428-210
$119.00 Save $60.00 RRP: $179.00
Co2 Air Detector Carbon Dioxide Detector Agricultural Production Co2 Monitor
$54.00
AQM-419 CO2 Controller, Dual Knob Adjustment
$229.00
Air Monitor Co2 Carbon Dioxide Detector Air Quality Temperature Humidity Monitor Quick Measuring Me
$23.95 Save $15.00 RRP: $38.95
High quality (with 1021220083811) HT609PRO combustible gas detector
$84.00 Save $25.00 RRP: $109.00
CO2 Infrared NDIR Sensor Air Quality Detector Digital Gas Analyzer
$34.95 Save $13.00 RRP: $47.95
Rm370 carbon monox detector - ZCL1978 hwy
$54.00 Save $30.00 RRP: $84.00
Handheld Combustible Gases Leak Detector Natural Gases Leakage Concentration Analyzer Meter Sound Light Zl72a Battery
$54.00 Save $20.00 RRP: $74.00
Digital Naturall Gas Detector, Home Gas Alarm, Gas Leak Detector, High Sensitivity Lpg, Lng, Naturall Coal Leak Detection, Home/kitchen Alarm Monitor
$33.95 Save $3.00 RRP: $36.95
5-in-1 Air Quality Detector with Stand USB Type-C Multifunctional Automatic Display Portable CO2,HCHO,TVOC Tester Black
$33.95
Formaldehyde Monitor Carbon Dioxide Detector TVOC Detector Temperature and Humidity CO 2 Air Quality Monitor White
$20.95
5-in-1 Air Quality Detector with Stand USB Type-C Multifunctional Automatic Display Portable CO2,HCHO,TVOC Tester White
$33.95
Natural Gas Leak Detector, Plug-in Propane Natural Gas Detector for Home Kitchen RV,Combustible & G
$24.95
Portable Gloss Meter -300 SE with 0.2GU High Accuracy 100,000 Measurements on A Single Charge and Long Battery Life
$249.00
4-in-1 Gas Detector with Sensors for Carbon Monoxide Oxygen and Gases Portable Harmful Alarms for Safety
$259.00
CO2 Monitor Meter Sensor Indoor with Alarm, Air Quality Carbon Dioxide Monitor with 400-5000 PPM-NDI
$41.95
SW-743A Refrigerant Leak Detector High Sensitivity LCD Display DC4.5V Freon Tester for AC Car Fridge
$69.00
3F Food Safety Detector in Food Nitrate Tester
$169.00 Save $20.00 RRP: $189.00
Portable Gloss Meter -300 SE with 0.2GU High Accuracy
$229.00 Save $30.00 RRP: $259.00
BSIDE G1 Combustible Gas Detector Ambient Temperature Natural Gas Methane Propane Gasoline Leak Tester
$40.95 Save $28.05 RRP: $69.00
Gas Sensor Module VOC CO2 CH2O Output Multiple Parameter Air Quality Detector
$42.95 Save $26.05 RRP: $69.00
Halogen Gas CFC HFC Refrigerant Leak Detector R134a R410a R22a HVAC Checke
$42.95 Save $26.05 RRP: $69.00
MCU‑811 CCS811 Carbon Dioxide Monoxide Numerical Gas Sensor Air Quality Gas Sensor
$40.95 Save $28.05 RRP: $69.00
Handheld Air Quality Detector Meter Monitor Portable Rechargeable TVOC HCHO Tester
$44.95 Save $29.05 RRP: $74.00
Pipeline Detector Alarm LNG LPG Tube Natural Gas Detector Propane Detection Alarm 2500PPM AC9‑240V US Plug
$34.95 Save $10.00 RRP: $44.95
Semiconductor CO2 Gas Sensor Carbon Dioxide Gas Sensor Air Quality Sensor Module UART Output JW01-CO2
$10.95
Gas Detector Ao-02 Compatible with Models Ao2 Aa428-210 and Ao2ptb-18.10 SZRH A-C
$42.95 Save $16.05 RRP: $59.00
Co2 Air Quality Monitor Wifi 4-in-1 Air Detector Co2 Temperature Humidity Office Grow Tent Wine Cellar
$149.00 Save $70.00 RRP: $219.00
Ht609 Natural Gas Leak Detector Combustible Gas Detector Methane Leak Alarm Detect Combustible Gas
$54.00 Save $30.00 RRP: $84.00
Gas Leak Detector 803 Oxygen Gas Detector Oxygen Gas Detector 803 Blue Digital Display Oxygen Gas Leak Detector 10-+50
$159.00