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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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1,633 - 1,664 of 3,200
Mini Co2 Detector,air Quality Monitor Carbon Dioxide Tester,indoor Air Temperature Humidity Analyze
$48.95 Save $40.05 RRP: $89.00
Breathalyzer Alcohol Portable Mini Led Display
$42.95 Save $36.05 RRP: $79.00
Portable Electronic Breathalyzer Professional Alcohol Tester With 5 Mouthpieces
$25.95 Save $28.05 RRP: $54.00
Portable Air Quality Detector Co2 Measurement Digital Temperature Meter Humidity Tester
$64.00 Save $45.00 RRP: $109.00
Formaldehyde Detector Household Decoration Occupancy Gas Detection Indoor Harmful Odor Test TVOC
$24.95 Save $5.00 RRP: $29.95
CJMCU-8118 HDC1080 Carbon Dioxide CO2 Temperature Humidity VOCs Air Quality Sensor Module for
$34.95 Save $7.00 RRP: $41.95
CO2 Air Detector Carbon Dioxide Detector Agricultural Production Greenhouse CO2 Monitor White
$35.95 Save $11.00 RRP: $46.95
Gas Detector, Lpg/natural Gas/coal Gas Leak Detector Plug In Sensor...
$79.00
12 in 1 Air Quality Monitor CO2 Monitor,Black
$37.95 Save $26.05 RRP: $64.00
MG811 CO2 Sensor Sensor Module
$37.95 Save $5.00 RRP: $42.95
Gas Leak Detector Analyzer Methane Combustible Gas 50000PPM 100% Combustible Natural Gas Tester
$89.00
Combustible Gas Detector Natural Gas Leak Detector Methane LPG Leak Detection Analyzers Tool with A
$41.95 Save $11.00 RRP: $52.95
US PLUG,Portable Ammonia Gas Detector,0-200 PPM Monitor with Temperature Humidity Tester for Farm,Poultry,Pig&Livestock
$199.00 Save $100.00 RRP: $299.00
Indoor Air Quality Detector High-Precision Real-Time Portable 10-in-1 Monitor with Alarm Air Qualit
$44.95 Save $14.05 RRP: $59.00
MICS5524 Air Quality Sensor Gas Detector Module for Arduino CO H2 CH4 MultiGas Detection
$35.95 Save $17.00 RRP: $52.95
Gas Sensor Module MQ2 MQ135 MultiGas Detector for CO Methane LPG Hydrogen Smoke Precision
$20.95 Save $10.00 RRP: $30.95
Gas Detector Pen Type Sensitive Portable Combustible Gas Tester Sensor for Industry Catering
$25.95 Save $8.00 RRP: $33.95
Accuracy Infrared CO2 Sensor Module NDIR for Air Quality Monitoring and HVAC Systems
$179.00 Save $80.00 RRP: $259.00
Gas Leak Detector Smart Natural Gas Alarm with App Control for Home and Work
$69.00 Save $30.00 RRP: $99.00
Refrigerant Leak Detector with Enhanced Sensitivity for HVAC and Automotive, Halogen Gas Tester R134a R410a R22
$40.95 Save $23.05 RRP: $64.00
Gas Sensor Module MQ2 MQ135 MultiGas Detector for CO Methane LPG Hydrogen Smoke Precision
$20.95 Save $10.00 RRP: $30.95
Ammonia Detector NH3 Gas Monitor with Temperature and Humidity, Rechargeable LCD Display for Industrial and Agricultural Use
$189.00 Save $100.00 RRP: $289.00
Gas Detector for CO H2S O2 EX, Portable 4 Gas Monitor with RealTime Detection and Triple Alarms (Orange)
$179.00 Save $90.00 RRP: $269.00
NEH2S Electrochemical Hydrogen Sulfide Gas Sensor for Accurate Industrial H2S Detection
$149.00 Save $80.00 RRP: $229.00
MQ2 Gas Sensor Module for Arduino, MultiGas Detection with Adjustable Sensitivity and Fast Response
$20.95 Save $10.00 RRP: $30.95
Natural Gas Detector and Propane Gas Detector with 85dB Alarm for Home RV LPG Methane Leak Detection
$33.95 Save $17.00 RRP: $50.95
Gas Leak Detector Pen for Natural and Propane Gas, MultiGas Detection with LCD Display and Alarm, Orange
$69.00 Save $35.00 RRP: $104.00
NDIR CO2 Sensor Infrared Carbon Dioxide Sensor Module with Serial Port PWM Analog Output CO2 Gas De
$46.95 Save $12.05 RRP: $59.00
12V Gas Detector Sensor Alarm Propane Butane Natural LPG Motorhome Motorhome 1pcs
$45.95 Save $28.05 RRP: $74.00
20-In-1 Tuya WIFI Air Quality Detector 5Pcs Subunits
$119.00
2C012,13 in 1 Tuya WIFI Air Quality Detector CO2 (with 3 slave units)
$69.00
Portable Carbon Dioxide Detector Useful CO2 Meter Air Quality Monitor with Storagecase
$209.00 Save $60.00 RRP: $269.00