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Shop the best prices on 4,231 great value gas detectors. Shopping for gas detectors is easy with Fruugo, with SALE discounts, offers and savings on Viewleaf, Generic1, GreenZech and more. Buy gas detectors online safely with Fruugo, with secure payment and fast shipping to Canada.

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2,625 - 2,656 of 3,200
SCD41 CO2 Carbon Dioxide Gas Sensor Module with Temperature and Humidity Detection I2C Communication
From $31.95
MQ136 Hydrogen Sulfide Gas Sensor Module H2S Gas Detection Sensor Module High Sensitivity Sensor Module
From $19.95
SCD41 Gas Sensor Module COO Sensor Module 2-in-1 Temperature and Humidity Sensor 2.4-5.5V with I2C Communication
From $35.95
MQ138 Formaldehyde Gas Detection Sensor Formaldehyde Sensor Module
From $28.95
Alcohol Gas Concentration Sensor High Sensitivity Breathalyzer Module Smart Vehicle Detection DIY Projects
From $84.00
ZY-STCC4 Digital Temperature Sensor Module STCC4 3-in-1 CO? Sensor, Temperature, and Humidity Module for Arduino
From $26.95
Ammonia Gas Sensor NH3 Concentration Air Quality Environmental Monitoring Module Digital Electrochemical SC05-NH3
From $36.95
Air Quality Monitor Carbon Dioxide Detector Accurate Tester for CO CO2 PM2.5 TVOC HCHO Tem
From $59.00
CO2 Air Detector Carbon Dioxide Detector Agricultural Production Greenhouse CO2 Monitor
From $18.95
-z19c Ir Infrared Co2 Sensor Module Carbon Dioxide Gas Sensor Ndir For Co2 Monitor 400-5000ppm Uart
From $59.00
Co2 Air Detector Carbon Dioxide Detector Agricultural Production Greenhouse Co2 Monitor White yyds
From $43.95
LPG/Natural Gas/Coal Gas Leak Detector, Plug-in Sensor Monitor with Audible Alarm and LED Digital Display, for Methane, Propane, Butane Fuel
From $31.95
6 in 1 PM2.5 PM10 HCHO TVOC CO CO2 Multifunctional Air Quality Detector CO Carbon Dioxide Formaldehyde Monitor LCD Large Display Screen Portable Home
From $59.00
ZY-STCC4 Digital Temperature Sensor Module STCC4 3-in-1 CO? Sensor, Temperature, and Humidity Module for Arduino
From $28.95
ZY-STCC4 Digital Temperature Sensor Module STCC4 3-in-1 CO? Sensor, Temperature, and Humidity Module for Arduino
From $24.95
Gas leak detector with audible and visual alarm
From $94.00
Rm370 carbon monox detector
From $35.95
Rm370 Carbon Monox Detector Viewleaf
From $39.95
Combustible Gas Leak Detector 500~1000PPM High-Sensitivity Semi-conduct Sensor Gas Leakage Analyzer Methane Carbon Monoxide Test
From $39.95
Wireless Gas Detector Alarm Leakage Sensor Natural Gas Leak Detector
From $35.95
Propane Detector 12V LPG Natural Gas Sensor Leak Alarm 85DB Siren for Car RV Home Digital Propane Tester Meter(White)
From $31.95
4-In-1 Multi-function Detector Natural Gas Carbon Monoxide Propane Detector Home Apartment RV Plug-in Temperature Humidity Detector,New 2026
From $35.95
MG811 CO2 Carbon Dioxide Gas Sensor Module with Analogue Output for Indoor Climate Control
From $64.00
Long Probe Refrigerant Leak Detector with Audible and Visual Alarm for Air Conditioning Systems
From $89.00
6 In 1 Air Quality Detector Lcd Large Screen Co2 Meter Pm2.5 Pm10 Hcho Tvoc Co Co2 Co Carbon Dioxide Formaldehyde Monitor
From $43.95
Freon Leak Detector, Wjl-6000 Refrigerant Hvac Leak Detector, Halogen Gas Sniffer
From $119.00
Freon Leak Detector, Wjl-6000 Refrigerant Hvac Leak Detector, Halogen Gas Sniffer
From $74.00
CO2 Detector, Indoor Air Quality Monitor, TVOC Meter,for Office Home
From $26.95
12 in 1 Air Quality Monitor CO2 Monitor with Time/ Date Display WIFI PM2.5 PM10 CO CO2 TVOC HCHO Te
From $54.00
Tuya WiFi 10in1 Air Quality Detector PM2.5 PM1.0 PM10 CO2 TVOC HCHO Tester TFT Display Time Temperature Meter White
From $159.00
TVOC/ECO2 Gas Sensor Unit Digital Multi-Pixel Gas Sensor Integrated SGP30 for Air Quality Monitoring
From $34.95
Halogen Leak Detector for Car Air Conditioners, Refrigerant HVAC Tester with Sensitivity Adjustment, Compatible with R134a, R410a, R22a
From $64.00