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Shop the best prices on 4,154 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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65 - 96 of 3,200
For YYS Electrochemical Ozone O3 Gas Sensor Module for Ozone Concentration Detection Disinfection Cabinet SC01-O3
From $24.95
H2S Monitor with Warning Light, Temperature View and Hold Key for Daily Industrial Field Work, Sewer Inspection and Site Travel Use Multicolor 2026
From $209.00
O3 Ozone Meter Ozone Analyzer Air Detector Intelligent Sensor Ozone Counter Air Quality Pollution Monitor - XC,New 2026
From $209.00
Gas Detector Leak Detector Natural Coal Gas Methane Propane Butane Detector Lpg Lng Portable Digital Led Sound Alarm For City Rv Home Mobile,New 2026
From $279.00
CY-12C Oxygen Level Detector with Quick Response Time,New 2026
From $259.00
Innovative Co2 Air Quality Monitor, Portable Co2 & Pm Sensor compatible with Comprehensive Air Quality Analysis In Any Indoor Space
From $109.00
Natural gas detector [MI]
From $39.95
Portable Gas Leak Detector | Handheld Gas Sniffer for Home, Kitchen, Hotel, Car & Catering
From $54.00
Refrigerant Leak Detector for HVAC and Automotive AC, 0-1000 ppm CFCs/HCFCs with Flexible Probe
From $74.00
Portable Ozone O3 Detector with Adjustable Alarm Threshold, Handheld Air Quality Monitor
From $179.00
IR Infrared CO2 Sensor Module Carbon Dioxide Gas Sensor NDIR
From $37.95
Cjmcu-811 Ccs811 Carbon Monoxide Co Vocs Air Quality Numerical Gas Sensor Module For Arduino
From $48.95
Formaldehyde Sensor Module ZE08-CH2O with UART Output for Air Quality Monitoring
From $31.95
Portable Gas Leak Detector for Propane, Methane & Natural Gas with Battery
From $47.95
Portable Gas Leak Detector for Propane, Methane & Natural Gas with Lanyard, Black
From $47.95
12 in 1 Air Quality Monitor CO2 Monitor with Time/ Date Display WIFI PM2.5 PM10 CO CO2 TVOC HCHO Te
From $41.95
Co2 Detector Carbon Dioxide Gas Concentration Meter Temperature Humidity Measuring Machine
From $179.00
Combustible Gas Detector Propane CO Hexane Methane Leak Indicator Port Natural Gas Analyzer 0-100%
From $64.00
MQ131 Ozone Sensor Module for Accurate Ozone Gas Detection and Monitoring
From $27.95
MQ131 Ozone Sensor Module for Accurate Ozone Gas Detection and Monitoring
From $27.95
Gas Leak Detector Analyzer Carbon Monoxide Sensor LCD Digital Displayer Natural Gas 2 in 1 Alarm Sy
From $24.95
Carbon Monoxide Detectors Portable Formaldehyde Sensor Digital Air Quality Monitor Gas Analyzer LCD HCHO TVOC Detector
From $31.95
2.8-inch LCD CO2 Concentration Tester Mini Carbon Dioxide Detector Humidity & Temperature Meter Air Quality Monitor 1200mAh Lithium Battery CO2 Meter
From $33.95
Air Detector Pm2.5 Pm10 Co2 Formaldehyde Temperature Detector
From $99.00
Portable Air Quality Monitor Indoor CO2 Detector 5 in 1 Formaldehyde HCHO TVOC Tester LCD Temperatur
From $47.95
Portable Gas Leak Detector Tester Propane Methane Natural Gas Sensor Alarm
From $54.00
5 in 1 Air Quality Monitor, USB Rechargeable CO2 Detector Black
From $19.95
Co2 Detector Dioxide Detector Cultural Co2 Mon (xiatian)
From $64.00
Portable Detector Functal Digital Dioxide Mon For Home Bed
From $23.95
MICS-6814 Air Quality Detection Module for Carbon Monoxide, Nitrogen Dioxide and Methane
From $89.00
Az7201 Liquefied Petroleum Gas Detection, Combustible Gas Detector, Methane Propane Natural Gas Leak Detector
From $649.00
Industrial Halogen Refrigerant Leak Detector WJL-6000, Freon Gas Detector for HVAC R22 R410A R134A R1234YF
From $64.00