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Shop the best prices on 8,042 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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2,817 - 2,848 of 3,200
5 in 1 Air Quality Monitor TVOC HCHO Temperature Humidity CO2 Meter, USB Rechargeable CO2 Detector White
$25.95 Save $8.00 RRP: $33.95
K5C Mini Carbon Dioxide Detector CO Tester Air Quality Portable Monitor LED Screen USB Typc-C Charging Indoor B
$54.00 Save $20.00 RRP: $74.00
Gas Leak Detector with High-Precise Sensor, Flexible Probe, Visual/Audible Alarm, Portable for Home/Industrial Use
$43.95 Save $25.05 RRP: $69.00
Lcd Carbon Monoxide Co Detector Poisoning Gas Sensor Monitor Warning Alarm Set
$15.95
Portable Gas Leak Detector Alarm Combustible Gas Detector With Audible And Visual Alarm For All Types Of Flammable Gases Propane Methane Natural Gas
$40.95 Save $38.05 RRP: $79.00
4in 1 Gas Detector CO H2S O2 EX Tester Analyzer Rechargeable LCD Display Sound Light Vibration Alarm Air Quality Tester
$229.00 Save $60.00 RRP: $289.00
4 Gas Monitor,4 Gas Detector for H2S,CO,LEL and O2, A
$209.00 Save $170.00 RRP: $379.00
Digital Gas Leak Detector Alarm Sensor Propane Butane Methane Natural Gas Sensor
$59.00 Save $40.00 RRP: $99.00
3X MQ131 High Concentration Ozone Sensor Gas Sensor Module for Ozone High Concentration Analog TTL Level
$69.00 Save $40.00 RRP: $109.00
NDIR CO2 Sensor Infrared Carbon Dioxide Sensor Module with Serial Port PWM Analog Output CO2 Gas Detector Module MH-Z14A
$41.95 Save $12.05 RRP: $54.00
CY-12C Portable Oxygen Analyzer Oxygen Concentration Tester Handheld Oxygen Tester Analysis Instruments
$129.00
5 in 1 Air Quality Detector Semiconductor Sensors HCHO TVOC CO2 Temperature Humidity Tester Air Mon
$29.95
Tuya Wifi Air Quality Monitor Smart Home CO2 Detector Formaldehyde VOC CO2 CH2O Temperature Humidit
$32.95
K5C Mini Carbon Dioxide Detector CO Tester Air Quality Portable Monitor LED Screen USB Typc-C Charg
$43.95 Save $55.05 RRP: $99.00
BME680 Environmental Sensor BME680 Temperature and Humidity Atmospheric Pressure VOC Gas Detection
$25.95 Save $53.05 RRP: $79.00
5 in 1 Air Quality Monitor TVOC HCHO Temperature Humidity CO2 Meter, USB Rechargeable CO2 Detector
$22.95
MQ136 Hydrogen Sulfide Gas Sensor Module H2S Gas Detection Sensor Module High Sensitivity Sensor Mo
$26.95 Save $3.00 RRP: $29.95
BME688 Environmental Sensor BME688 Temperature and Humidity Atmospheric Pressure VOC Gas Detection
$42.95 Save $56.05 RRP: $99.00
Tuya Wifi Air Quality Monitor CO2 Detector Formaldehyde VOC CO2 CH2O Temperature Humidity Detector
$33.95 Save $4.00 RRP: $37.95
Risegun DM1308E Mini PM2.5 Dust+Temperature+Humidity Detector Exceeding Standard Alert (shipped with built-in battery)
$84.00 Save $20.00 RRP: $104.00
DEWIN Air Quality Tester, Indoor Air Quality Meter 5 In 1 PM2.5 HCHO Carbon Dioxide Detector Portable CO2 Monitor
$69.00 Save $15.00 RRP: $84.00
SCD41 Gas Sensor Module Detects CO2 Carbon Dioxide Temperature B
$31.95 Save $3.00 RRP: $34.95
MICS-5524 Air Quality Gas Sensor Module CO H2 Methane Ethanol Detection Board High Sensitivity for I2C for Arduino DIY
$15.95 Save $7.00 RRP: $22.95
-6000UV Halogen Leak Detector Freon Leak Detector R22 R410A R134A R1234YF Refrigerant Gas Air Condi
$37.95 Save $8.00 RRP: $45.95
Tuya WIFI Combustible Gas Detector Gas Alarm Digital Gas Detection Sensor Sound Alarm Smart Air Qua
$34.95 Save $9.00 RRP: $43.95
MQ137 Ammonia Gas Detection Sensor Module NH3 Gas Sensor Module
$15.95
CO2 Sensor 400-10000 ppm Carbon Dioxide Air Quality Detection
$18.95
Halogen Leak Detector Air Conditioning Refrigerant Leak Detector
$39.95
Air Quality Monitor Indoor, Air Quality Detector, CO2 Monitor Black
$41.95
Combustible Gas Detector, Combustible Gas Alarm, Air Quality Monitor
$33.95
SCD41 Gas Sensor Module Detects CO2 Carbon Dioxide Temperature D
$33.95
Portable Carbon Dioxide Detector Air Quality Tester CO2 Meter
$40.95