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Shop the best prices on 8,064 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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1,313 - 1,344 of 3,200
Handheld Gas Detector, O2 EX H2S CO Gas Analyzer, Air Quality Monitor Industrial Safety, Gas Sensor
$259.00 Save $30.00 RRP: $289.00
Air Quality Monitor CO2 Detector 5 in 1 IR Accurate Tester for CO2 TVOC HCHO Temperature Relative Humidity Real Time Reading with Alarm Comfort Level
$69.00 Save $20.00 RRP: $89.00
Portable CO2 Detector Air Quality Detector Intelligent Air Detector Temperature And Humidity Sensor Tester Carbon Dioxide Monitor TVOC Formaldehyde De
$50.95 Save $18.05 RRP: $69.00
Air Quality Monitor CO2 Detector 3 in 1 Accurate Tester for CO2 Temperature Humidity NDIR Sensor Carbon Dioxide Meter Concentration Tester with Alarm
$74.00 Save $25.00 RRP: $99.00
WiFi Gas Alarm Plug in Combustible Gas Detector for Tuya APP Control Support Flammable Gases Methane Butane Detecting for Home RV
$33.95 Save $10.00 RRP: $43.95
HABOTEST HT56 Pro Pen-Type Stretchable Gas Leak Detector with Audible and Visual Alarms Highly Sensitive Sniffer Natural Gas Detector to Locate Combus
$42.95 Save $16.05 RRP: $59.00
SMART SENSOR ST8990 Multi Gas Monitor Rechargeable 4 in 1 O LEL CO HS Gas Detector Tester Sensor with Backlight Alarm Function LCD Display
$189.00 Save $60.00 RRP: $249.00
NOYAFA Portable Formaldehyde Detector Indoor Air Quality Monitor HCHO and TVOC Monitor with Audible Alarm LED Indicator for Home HVAC System
$30.95 Save $9.00 RRP: $39.95
Carbon Dioxide Detector with Rechargeable Battery Portable CO2 Meter Tester for Carbon Dioxide Air Quality Detector CO2 Meter Monitor with Storage Cas
$219.00 Save $70.00 RRP: $289.00
HABOTEST Portable Gas Analyzer HT601B Household Gas Leak Detector Gases Detector PPM Meter Methane Concentration Alarm Instrument
$104.00 Save $35.00 RRP: $139.00
Carbon Dioxide Detector with Rechargeable Battery Portable CO2 Meter Tester Wall-mounted for Carbon Dioxide Air Quality Detector CO2 Meter Monitor wit
$189.00 Save $50.00 RRP: $239.00
USB Intelligent CO2 Tester Air Quality Tester High Sensitive Carbon Dioxide Detector CO2 Meter Tester PTH-4
$119.00 Save $40.00 RRP: $159.00
BRJ-502D Plug-in Digital Natural Gas Detector High Sensitive Home Gas Alarm Combustible Gas Leak Monitor for Home Kitchen
$36.95 Save $11.00 RRP: $47.95
Freon Leak Detector WJL-6000 Refrigerant HVAC Leak Detector Halogen Gas Sniffer Automotive Gas Finder Halogen Leakage Tester Checker for R134a R410A R
$47.95 Save $16.05 RRP: $64.00
Portable Air Quality Monitor Indoor CO2 Detector 5 in 1 Formaldehyde HCHO TVOC Tester LCD Temperature Humidity Tester Rechargeable CO2 Alarm Meter for
$49.95 Save $14.05 RRP: $64.00
CO2 Air Detector Carbon Dioxide Detector Agricultural Production Greenhouse CO2 Monitor Black
$32.95 Save $10.00 RRP: $42.95
KKmoon Handheld Carbon Monoxide Meter with High Precision CO Gas Tester Monitor Detector Gauge 0-1000ppm GM8805
$74.00 Save $20.00 RRP: $94.00
Gas Detector Pen Type Sensitive Portable Combustible Gas Tester Sensor for Industry Catering
$23.95 Save $14.00 RRP: $37.95
HABOTEST HT56 Pen-Type Gas Leak Detector with Audible and Visual Alarms Highly Sensitive Sniffer Natural Gas Detector to Locate Combustible Sources Li
$37.95 Save $11.00 RRP: $48.95
SMART SENSOR AS8800L Portable Flammable Gas Detector Natural Gas Leak Tester Analyzer
$41.95 Save $27.05 RRP: $69.00
WT8820 Portable Combustible Gas Detector Leakage Natural Gas Sensor Alarm High Sensitivity Test
$41.95 Save $27.05 RRP: $69.00
HABOTEST HT58PRO Rechargeable Natural Gas Detector Gas Leak Detector with 11.5-inch Extendable Probe %LEL Propane Leak Detector with Built-in Flashlig
$64.00 Save $15.00 RRP: $79.00
SMART SENSOR LCD CO2 Monitor Carbon Dioxide Tester Multifunctional Air Quality Detector USB Rechargeable CO2 Meter Temperature Humidity Monitor 80000
$219.00 Save $70.00 RRP: $289.00
CO2 Air Detector Carbon Dioxide Detector Agricultural Production Greenhouse CO2 Monitor White
$38.95 Save $11.00 RRP: $49.95
4 in 1 Gas Detector LCD Display Compound Gas Measurement Detector Sound Light Vibration Alarm Data Record Combustible Gas Detector
$179.00 Save $50.00 RRP: $229.00
Portable USB Rechargeable PM2.5 Detector Multifunctional Thermohygrometer Home Air Detector Indoor Air Quality Analyzer Household Air Pollution Monito
$64.00 Save $20.00 RRP: $84.00
2.9-inch Air Quality Monitor CO2 Meter USB Rechargeable Thermometer & Hygrometer TVOC/HCHO/CO2 Detector CO2 Concentration Detector for Home Office
$44.95 Save $14.05 RRP: $59.00
Gas Leak Detector Portable Propane and Natural Gas Leak Detector with LCD Color Display 3 in 1 Combustible Gas Sensor Sniffer Gas Temperature and Humi
$42.95 Save $16.05 RRP: $59.00
Multifunctional CO2 ppm Meters Mini Carbon Dioxide Detector Gas Analyzer Protable Air Quality Tester
$54.00 Save $20.00 RRP: $74.00
Co2 Air Quality Monitor Indoor Carbon Dioxide Detector Co2 Alarm Meter 400-5000 Hcho, Tvoc,humidity
$49.95 Save $39.05 RRP: $89.00
PTH-9E Intelligent CO CO2 Detector Portable Temperature, Humidity and Air Quality Detector
$219.00 Save $250.00 RRP: $469.00
Nuclear Radiation Detector Electromagnetic Ionization Marble Radiation Tester
$309.00 Save $290.00 RRP: $599.00