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Shop the best prices on 24,394 great value gas detectors. Shopping for gas detectors is easy with Fruugo, with SALE discounts, offers and savings on Viewleaf, Elsavct, Generic1 and more. Buy gas detectors online safely with Fruugo, with secure payment and fast shipping to Singapore.

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1,825 - 1,856 of 3,200
Home Radiation Detector Electromagnetic Wave Measuring Instrument Electromagnetic Field Mobile Phone Radiation Monitor
$139.00 Save $70.00 RRP: $209.00
Multi Gas Detector Gas Meter O2 H2S CO 4 in 1 Oxygen Hydrogen Sulfide Carbon Monoxide Combustible Gas Leak Detector
$219.00 Save $110.00 RRP: $329.00
Multi Gas Detector Gas Meter O2 H2S CO 4 in 1 Oxygen Hydrogen Sulfide Carbon Monoxide Combustible Gas Leak Detector
$239.00 Save $120.00 RRP: $359.00
Multi Gas Detector Gas Meter O2 H2S CO LEL 4 in 1 Oxygen Hydrogen Sulfide Carbon Monoxide Combustible Gas Leak Detector
$219.00 Save $110.00 RRP: $329.00
O3 Ozone Meter Ozone Analyzer Air Detector Intelligent Sensor Ozone Counter Air Quality Pollution Mo
$159.00 Save $30.00 RRP: $189.00
Naiwang Portable Air Quality Detector Digital Temperature Humidity Sensor Tester Co2 Carbon Dioxide Tvoc Formaldehyde Hcho Detector
$139.00 Save $70.00 RRP: $209.00
Oxygen Sensor AO-02 Compatible with AO2 AA428-210 AO2PTB-18.10
$59.00 Save $10.00 RRP: $69.00
MICS-5524 Air Quality Gas Sensor Module CO H2 Methane Ethanol Detection Board High Sensitivity for
$15.95 Save $3.00 RRP: $18.95
Smart CO2 Detector Carbon Dioxide Controller 2 Channel CO2 Monitor with Relay Power Socket for Tuya APP EU Plug 100240V
$399.00 Save $70.00 RRP: $469.00
Carbon Dioxide Sensor Infrared CO2 Concentration Detection 5000ppm Gas HAVC RV Smart Home Air Quality Monitor
$29.95 Save $9.00 RRP: $38.95
Upgraded Natural Gas Detector with Audible & Visual Alarm Locating The Source of Propane Methane & Combustible Gas Multicolor
$44.95
2pcs BME688 Environmental Sensor Module Temperature/Humidity/Air Pressure/Gas for Smart Home and IoT Projects
$52.95
High Precisions Ozones Sensors Module MQ136 for Air Quality Monitoring and Purification Multicolor
$38.95 Save $2.00 RRP: $40.95
SCD40 Gas Sensor Module 2.4-5.5V Detects CO2 Carbon Dioxide Temperature and Humidity Sensor I2C Com
$48.95 Save $15.05 RRP: $64.00
MICS-6814 Gas Sensor Carbon Monoxide CO NO2 NH3 Nitrogen Oxygen Quality Detection Numerical Sensor
$48.95 Save $5.05 RRP: $54.00
Refrigerant & Combustible Gas-Leak Detector, PPM Freon Leak Detector with Loud Alarm, for R134A R41
$54.00 Save $5.00 RRP: $59.00
Refrigerant Leak Detector 0-1000PPM Air Conditioning HVAC Refrigerant Leak Detector HCFC HFO Tester
$54.00 Save $15.00 RRP: $69.00
Freon Leak Detector Halogen Gas Analyzer Air Conditioning Gas Detector Refrigerant Leak R134a CFCs
$64.00 Save $10.00 RRP: $74.00
UT336A Refrigerant Leak Detector,Refrigerant Type Refrigeration Industry Negative Electronic Leak
$119.00 Save $20.00 RRP: $139.00
Small Air Quality Detectors with High Accuracy Technology ABS for Measuring Multiple Pollutants in Various Setting Multicolor
$149.00
2025 New Freon Leak Detector, WJL-6000 Refrigerant HVAC Leak Detector, Halogen Gas Sniffer
$33.95 Save $105.05 RRP: $139.00
Rm370 Carbon Monox Detector-YUHAO
$64.00 Save $30.00 RRP: $94.00
Electrochemical H2S Sensors Air Quality Environmental Monitoring Module Digital SC05-NH3 Sensors Module Replacement
$74.00
ENS160+AHT21 CARBON Dioxide CO2 ECO2 TVOC Air Quality and Temperature and Humidity Sensor Replace CCS811
$14.95 Save $7.00 RRP: $21.95
Multi Gas Detector Gas Meter O2 H2S CO LEL 4 in 1 Oxygen Hydrogen Sulfide Carbon Monoxide Combustibl
$189.00 Save $240.00 RRP: $429.00
3 in 1 CO2 Meter Air Quality Monitor Handheld 5000Ppm CO2 Monitor Measurement Carbon Dioxide / De
$50.95 Save $53.05 RRP: $104.00
Gas Detector, Lpg/natural Gas/gas Leak Detector, Plug-in Sensor Monitor With Audible Alarm And Led Digital Display
$29.95 Save $24.05 RRP: $54.00
Multi Gas Detector Gas Meter O2 H2S CO LEL 4 in 1 Oxygen Hydrogen Sulfide Carbon Monoxide Combustible Gas Leak Detector
$189.00 Save $240.00 RRP: $429.00
3 in 1 CO2 Meter Air Quality Monitor Handheld 5000Ppm CO2 Monitor Measurement Carbon Dioxide / De
$74.00
HT66 Gas Leak Detector 50-1000PPM Sound Alarm Mini Household Handheld Combustible Natural Methane Gas Leak Detector
$43.95
Brass O2 Sensor Extender 90 Angled For Hydrogen Cars M18x1.5
$17.95 Save $41.05 RRP: $59.00
Portable Gas Leak Detector with Dual Alarms for Home and Industrial Safety
$69.00 Save $80.00 RRP: $149.00