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Shop the best prices on 8,058 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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1,793 - 1,824 of 3,200
Tuya Combustible Gas Detector Gas Alarm Gas Detection Sensor,A
$23.95
Household Formaldehyde Detector Indoor Air Quality Monitor Accurate Formaldehyde Tester with LCD Display and Rechargeable Battery
$42.95 Save $21.05 RRP: $64.00
Portable Ammonia Gas Detector,0-200 PPM Rechargeable Ammonia Gas Monitor,Digital Air Quality NH3 Gas Meter US Plug
$189.00 Save $90.00 RRP: $279.00
Carbon Dioxide Detector NDIR CO2 Sensor With Digital Display For Temperature And Humidity Air Quality
$49.95 Save $24.05 RRP: $74.00
Air Conditioning Leak Detector - Refrigerant Leak Detector for Car Air Conditioning, Quick Test Device for System Maintenance and Inspection
$84.00 Save $45.00 RRP: $129.00
Portable 3-in-1 CO2 Air Quality Detector with Carbon Monoxide Sensor, Gas Monitor, Temperature and Humidity Measurement
$74.00 Save $45.00 RRP: $119.00
Refrigerant Leak Detector with Audible Visual Alarm HVAC Halogen Gas Sniffer for R22 R134A R410A
$54.00 Save $30.00 RRP: $84.00
Auto Air Conditioning Leak Repair Kit, Portable Refrigerant Leak Detector for Car AC Maintenance and Home Appliance Service
$104.00 Save $55.00 RRP: $159.00
Indoor Air Quality Monitor Portable Ozone Analyzer Multifunction O3 Ozone Meter Air Detector For Home And Office
$189.00 Save $100.00 RRP: $289.00
Gas Leak Detector Methane Analyzer 50000 PPM Natural Gas Tester with LCD Screen Sound and Light Alarm Real-Time Reading
$179.00 Save $80.00 RRP: $259.00
Smart Gas Leak Detector with WiFi Alerts, Voice Notification for Home, Kitchen and RV Safety
$59.00 Save $30.00 RRP: $89.00
Air Quality Monitor | Portable Air Detector with Clear Display | Accurate Home Safety Device for Bedroom and Grow Tent Monitoring
$54.00 Save $30.00 RRP: $84.00
ZE08-CH2O Electrochemical Formaldehyde Sensor Module with UART and Analog Output for Accurate CH2O Detection
$149.00 Save $80.00 RRP: $229.00
Air Quality Monitor | Portable Air Detector with Clear Display - Accurate Device for Home Safety, Bedroom Monitoring, and Grow Tents
$41.95 Save $22.05 RRP: $64.00
Natural Gas Leak Detector for Home - LPG, Propane, Methane, Butane Alarm, Compact Design, Easy Installation
$54.00 Save $15.00 RRP: $69.00
MQ135 Air Quality Sensor Module 3PCS MultiGas Detection for Arduino and Raspberry Pi
$24.95 Save $13.00 RRP: $37.95
Portable Air Quality Monitor, Temperature and Humidity Tester, CO2 Detector (Black 1 UK)
$59.00 Save $30.00 RRP: $89.00
4-in-1 Carbon Monoxide Detector,portable Carbon Monoxide Carbon Dioxide Monitor Air Quality Monitor
$109.00 Save $160.00 RRP: $269.00
MT03 Air Quality Monitor CO2 Temperature Humidity Tester CO2 Detector Carbon Dioxide Detector Black
$20.95 Save $3.00 RRP: $23.95
5 in 1 Air Quality Monitor for HCHO, TVOC, CO2, Temperature, and Humidity Detection
$64.00
ZRUXE Portable Ozone Analyzer Multifunctional O3 Ozone Meter Air Detector Intelligent Sensor Ozone Meter Air Quality Pollution Monitor
$219.00 Save $70.00 RRP: $289.00
Portable Air Quality Detector Digital Temperature Humidity Sensor Tester Co2 Carbon Dioxide Tvoc Formaldehyde Hcho Detector New
$109.00 Save $30.00 RRP: $139.00
Digital Formaldeyde Detector Handled Air Quality Monitor Hcho Tvoc Pm1.0 Pm2.5 Pm10 Detector Multifunctional Gas Analyzer
$99.00 Save $30.00 RRP: $129.00
Mini Handheld Lanyard Portable Ndir Medidor De Co2 Alarm Carbon Dioxide Detector Air Quality Sensor Monitor Co2 Meter
$139.00 Save $70.00 RRP: $209.00
Lcd Gas Analyzer Tester Meter Automotive Combustible Gas Sensor Air Quality Monitor Gas Leak Detector With Sound Shock Alarm
$209.00 Save $110.00 RRP: $319.00
Co2 Air Detector 3-in-1 Indoor Co2 Detector Air Quality Monitor Detects Co2 Home Office Light-and-s
$99.00 Save $50.00 RRP: $149.00
3 in 1 CO2 Meter Air Quality Monitor Handheld 5000Ppm CO2 Measurement Device for Carbon Dioxide Levels
$74.00
4 in 1 Portable Multi Gas Detector IP65 Waterproof Gas Leak Meter for O2 / CO / H2S / COMB Compatibility
$299.00
Cylinder Leak Tester Double Pressure Gauge Compression Leakage Detection Kit 0-7bar/0-100psi
$149.00
Leak Detection Set for Air Conditioning, Portable Gas Leak Tester for HLK Maintenance, Radiator Pressure Test and Vehicle Inspection
$129.00 Save $70.00 RRP: $199.00
Air Conditioning Kit, Refrigerant Leak Tester, Auto Refrigerant Spill Detector, AC Maint Tool 14.3x14.5x2.55in
$159.00 Save $70.00 RRP: $229.00
Portable Air Quality Detector Compatible with Bluetooth Multifunctional Carbon Dioxide Monitor for
$37.95 Save $41.05 RRP: $79.00