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Shop the best prices on 4,242 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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2,721 - 2,752 of 3,200
2026 Suitable Ozone detector, portable ozone detector O3 ozone meter smart sensor ozone meter gas analyzer,New 2026
From $279.00
Natural Gas Detector Pen Type Leak Detector Combustible Gas Meter Analyzer Monitor For Home Visible Audible Alarm
From $64.00
Oxygen Meter Portable Oxygen(o2) Concentration Detector With Lcd Display And Sound-light Alarm
From $169.00
Portable Combustible Gas Detector Sniffer, Gas Leak Detector, Mini Gas Leak Detectors Sensor Range 50-10,00 ppm for Home
From $59.00
MH-Z19 MH-Z19E IR Infrared CO2 Sensor Module Carbon Dioxide Gas Sensor NDIR for CO2 Monitor 400-5000Ppm UART PWM(A)
From $24.95
pth-10d Gas Leak Detector, Portable Detector 3-in-1 Temp Humidity Charcoal Detector, Sound Alarm and LE/D Digital Display for Outdoor
From $99.00
Ammonia Sensor Module 5‑500ppm Ammonia Detection Sensor Board TTL Output for Testing
From $59.00
Ozone Detector 3-in-1 Portable O3 /Temperature/Humidity Tester Air Quality Household O3 Monitor USB Charging Black
From $54.00
ZE08-CH2O Formaldehyde HCHO Sensor Module with UART Output for Indoor Air Quality Monitoring
From $31.95
Ozone Gas Detector with Temperature and Humidity Display, Indoor Air Quality Monitor
From $169.00
3X MQ137 Ammonia Gas Detection Sensor Module NH3 Gas Sensor Module Appliance Accessories Analog TTL Level Output
From $37.95
Portable Flammable Gas Leak Detector, USB Rechargeable, for Methane and Butane
From $74.00
Combustible Gas Leak Detector Analyser with LCD Display, 0-9999ppm Methane Tester
From $119.00
-SGP30 ECO2 Air Quality Gas Sensor Module TVOC Detection Chip
From $11.95
The 6in1 Olfactory Sensor Module Supports UART Control Interface,Can Be Connected for ESP32 and Other Main Control Board
From $99.00
Refrigerant Leak Detector for HVAC Systems, R22 R410A R134A R1234YF with Alarm
From $64.00
Refrigerant Leak Detector for Car Air Conditioning and HVAC Systems
From $209.00
Halogen Gas Leak Detector for Air Conditioning and Refrigeration Systems
From $94.00
Portable Gas Leak Detector with Flexible Probe, LED Display Flammable Gas Alarm Tester HT601A
From $119.00
Portable Flammable Gas Leak Detector with 360° Adjustable Probe, USB Rechargeable, CH4 & C4H10
From $74.00
Gas Leak Detector for Home, Portable Combustible Gas Alarm with Accurate Detection
From $54.00
Refrigerant Gas Leak Detector for HVAC Systems, Freon Gas Analyser for CFCs HCFCs HFCs
From $179.00
Mini Ultrasonic Leak Detector Gas Handheld Portable Vacuum Seal Tester
From $89.00
Portable Combustible Gas Leak Detector with Flexible Probe, Audible Alarm AS8800L
From $64.00
Electrochemical Formaldehyde Detection Module with UART Output, Compatible with ZE08-CH2O
From $31.95
Air Conditioning Halogen Gas Leak Detector SW743A with Flexible Probe
From $89.00
MQ138 Formaldehyde Gas Detection Sensor Formaldehyde Sensor Module
From $27.95
5801587836 5802392186 Probe Ammonia NH3 Sensor for
From $129.00
MICS-4514 Gas Sensor Module Co/No2/NH3
From $42.95
SCD40 Gas Sensor Module 2.4-5.5V Detects I2C Communication
From $40.95
MQ136 Hydrogen Sulfide Gas Sensor Module H2S Gas Detection Sensor
From $19.95
MS1100 gas sensor module, high-precision TVOC and CO2 detection
From $11.95