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Shop the best prices on 7,358 great value gas detectors. Shopping for gas detectors is easy with Fruugo, with SALE discounts, offers and savings on Viewleaf, GreenZech, Other and more. Buy gas detectors online safely with Fruugo, with secure payment and fast shipping to Canada.

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33 - 64 of 7,358
OW‑159 Thermometer LCD Digital Temperature and Humidity Meter with Back Light and Folding Bracket High Accuracy for Family
$30.95 Save $18.00 RRP: $48.95
CO2 Detector Semiconductor Air Quality Monitor Temperature Humidity Sensor H8 Plus ZNAZGG01
$54.00 Save $20.00 RRP: $74.00
7 in 1 500V Changeable Insulated Screwdrivers Set with Magnetic Phillips and Slotted Bits Electrician Repair Tools Kit
$44.95 Save $19.05 RRP: $64.00
Desktop O2/RH/Temp. 3-in-1 Multifunctional Air Quality Detector Temperature Humidity Monitor Indoor/Outdoor O2 Meter Tester 3.5-inch Digital
$219.00 Save $10.00 RRP: $229.00
Nitric Oxide Detector 0‑50ppm 3.5in TFT Display Handheld NO Gas Tester Sensor for Home
$1,849.00 Save $50.00 RRP: $1,899.00
Air Quality Monitor Portable LCD Backlight Screen CO2 TVOC HCHO PM2.5 PM10 Detector with Alarm White
$54.00 Save $15.00 RRP: $69.00
Portable Natural Gas Leak Detector with LCD Display High Accuracy Combustible Gas Detector Sensor Tester
$59.00 Save $20.00 RRP: $79.00
Mini Gas Detector HT66 Household Portable Gas Tester with ble and Visual Alarms
$69.00 Save $40.00 RRP: $109.00
ZFX-13001 Digital High-Precision Humidity Controller Intelligent Humidity Control Switch Dehumidification/Humidification Mode Humidistat
$54.00 Save $15.00 RRP: $69.00
Carbon Dioxide CO2 Detector Air Quality Tester Formaldehyde Detector High Sensitive Poisoning Detector Indoor Formaldehyde Testing Machine
$31.95 Save $10.00 RRP: $41.95
1PCS J321 Geiger Tube Counter Hard Beta Detectors Geiger Counter Kit the Tube for Nuclear Radiation Detector
$26.95
Halogen Leak Detector Air Conditioning Refrigerant Leak Detector HVAC R22 R410A R134A CFCs HCFC Fre
$42.95
10 in 1 Air Quality Monitor HCHO TVOC PM2.5 PM10 CO CO2 Temperature&Humidity Tester Carbon Dioxide Detector White
$36.95
Halogen Leak Detector Air Conditioning Refrigerant Leak Detector HVAC R22 R410A R134A CFCs HCFC Freon Gas Tester
$44.95
Handheld Combustible Gases Leak Detector Natural Gases Leakage Tester Portable Combustible Gases Concentration Analyzer Meter with Sound Light Alarm
$69.00 Save $15.00 RRP: $84.00
Tuya Wifi Air Quality Monitor Smart Home CO2 Detector Formaldehyde VOC CO2 CH2O Temperature Humidity
$59.00 Save $30.00 RRP: $89.00
Gas Leak Detector with LCD Display and Sound Alarm for Methane Natural and Liquefied Petroleum Gas Air Quality Monitor
$31.95
Formaldehyde Gas Detector Flammable Toxic Detection Sensor Leakage Alarm DC5V~24V
$45.95 Save $8.05 RRP: $54.00
Co2 Detector Dioxide Detector Cultural Co2 Mon (xiatian)
$69.00
DR850 4 in 1 Portable Multi Gas Detector IP65 Waterproof Gas Leak Meter for O2 / CO / H2S / COMB
$159.00 Save $40.00 RRP: $199.00
Tuya WIFI Air Quality Monitor 5 in 1 Formaldehyde VOC CO2 Temperature Humidity Detector Sensor Support Remote Control
$29.95 Save $8.00 RRP: $37.95
UT336A Refrigerant Leak Detector Cfcs Hcfcs Hfcs Leakage Tester
$84.00 Save $10.00 RRP: $94.00
.5 In 1 Air Quality Monitor Hcho/co2/tvoc/aqi/co With 5.5'' Screen For Outdoor Indoor Home Security Air Quality Detector
$229.00
DM162C Intelligent Handheld CO2+Temperature+Relative Humidity Detector CO2 Measuring Instrument Exceeding Limit Alarm ℃/℉ Switch with Clear
$119.00 Save $20.00 RRP: $139.00
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
NOYAFA NF-604 Halogen Gas Detector Air Conditioning Fluorine Leakage Detector, Automobile Refrigerant Snow Species Leak Detection Freon Halogen Instru
$94.00 Save $35.00 RRP: $129.00
Disposable H2s Meter Hydrogen Sulfide Gas Detector Mini Size 0-100ppm
$409.00
Air Quality Monitor Co2 Detector With 2.8 Inch Tft Indoor Temperature Humidity Carbon Dioxide 1500mah Rechargeable Co2 Meter
$139.00
DR850 4 in 1 Portable Multi Gas Detector IP65 Waterproof Gas Leak Meter for O2 / CO / H2S / COMB
$159.00 Save $110.00 RRP: $269.00
SMART SENSOR AS8801 Portable Oxygen Detector Gas Detector For Industry
$169.00 Save $40.00 RRP: $209.00
Mobile CO2 Monitor NDIR Sensor Carbon Dioxide Detector Indoor CO2 Testing Manager NDIR Sensor with
$69.00
LXH‑8 1/2 Cold Water Meter, Highly Sensitive Remote Water Gauge Meter, Houshold Use
$84.00 Save $20.00 RRP: $104.00