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Shop the best prices on 7,450 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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225 - 256 of 7,450
CO Gas Sensor Carbon Monoxide Sensor UART Digital Output SC16B-CO (0-1000PPM)
$25.95 Save $5.00 RRP: $30.95
-Z19B Infrared Carbon Dioxide Monitor Sensor CO2 Detection Sensor Module UART PMW Wave Output 0-5000
$54.00 Save $10.00 RRP: $64.00
MQ138 Formaldehyde Gas Detection Sensor Formaldehyde Sensor Module Gas Sensor High Sensitivity 4.5-5
$30.95 Save $7.00 RRP: $37.95
Smart CO2 Detector Carbon Dioxide Controller 2 Channel CO2 Monitor with Relay Power Socket for Tuya APP EU Plug 100240V
$439.00 Save $135.00 RRP: $574.00
WT8820 Portable Combustible Gas Detector Leakage Natural Gas Sensor Alarm High Sensitivity Test
$54.00 Save $15.00 RRP: $69.00
CO2 Detector Semiconductor Air Quality Monitor Temperature Humidity Sensor H8 Plus ZNAZGG01
$31.95 Save $10.00 RRP: $41.95
Nitrogen Dioxide Detector NO2 Gas Meter 050ppm 3.5in TFT Color Screen Handheld Portable Equipment
$1,199.00 Save $350.00 RRP: $1,549.00
Carbon Dioxide Sensor Infrared CO2 Concentration Detection 5000ppm Gas HAVC RV Smart Home Air Quality Monitor
$33.95 Save $10.00 RRP: $43.95
Oxygen Detector 030%vol 5V USB Portable Oxygen Gas Meter with 1.7 Inch Backlit LED Display
$189.00 Save $50.00 RRP: $239.00
SMART SENSOR AS5750 Refrigerant Leak Detector High Sensitive USB Rechargeable Halogen Leak Detector
$99.00 Save $30.00 RRP: $129.00
Refrigerant Leak Detector Tester with High Accuracy Quick Response Heated Diode Sensor Universal
$349.00 Save $100.00 RRP: $449.00
Carbon Dioxide Sensor Module Active Low Output Analog Voltage 02V For Embedded Systems
$59.00 Save $30.00 RRP: $89.00
Gas Detectors Household Air Quality Detector Co2 Tester With Carbon Dioxide Value Electricity Quantity Temperature
$59.00
Gas Detectors K2 Electromagnetic Field Emf Gauss Meter Radiation Detector Portable Emf Magnetic-field Monitor 5
$69.00
Propane Detector 12V Natural Gas Sensor Leak Alarm 85DB Siren for Car RV Home Digital Propane Tester Meter(White)
$34.95
3 in 1 Carbon Dioxide Detector Air Quality Monitor Temperature Humidity Air Analyzer for CO2 Digital CO2 Meter for Home Office
$30.95 Save $23.05 RRP: $54.00
HLW-100 4-in-1 Air Quality Detector Formaldehyde CO2 PM2.5 PM10 Tester Smart Air Monitor Real-Time
$46.95 Save $12.05 RRP: $59.00
5 in 1 Air Quality Monitor TVOC HCHO Temperature Humidity CO2 Meter, USB Rechargeable CO2 Detector Black
$30.95 Save $53.05 RRP: $84.00
Air Quality Monitor CO2 Air Detector Carbon Dioxide Detector Temperature Humidity Sensor Real Time Reading
$59.00 Save $150.00 RRP: $209.00
MQ138 Formaldehyde Gas Detection Sensor Formaldehyde Sensor Module
$30.95 Save $8.00 RRP: $38.95
HLW-100 4-in-1 Air Quality Detector Formaldehyde CO2 PM2.5 PM10
$47.95 Save $11.05 RRP: $59.00
Formaldehyde Detector, TVOC Sensor, CO2, PM2.5, Temperature, Humidity, Air Quality, 5 in 1 Tester, Black
$32.95 Save $9.00 RRP: $41.95
S8-0053 400-2000 ppm Infrared CO2 Carbon Dioxide Sensor Serial Communication / PWM
$64.00 Save $20.00 RRP: $84.00
5V USB Portable Nitric Oxide Gas Detector NO Harmful Gas Concentration Alarm 0-250ppm
$389.00 Save $120.00 RRP: $509.00
4 in 1 Gas Detector CO H2S O2 EX Tester Analyzer LCD Display Rechargeable Sound Light Vibration Alarm Air Quality Tester
$209.00 Save $60.00 RRP: $269.00
ST9700 Portable Carbon Monoxide Tester, CO Gas Tester, Air Quality Monitor, Gauge Detector
$64.00 Save $20.00 RRP: $84.00
Aquarium CO2 Carbon Dioxide Monitor Glass Drop Tester Detector
$18.95 Save $6.00 RRP: $24.95
Mini Combustible Gas Detector Methane Natural Gas Leak Tester Sensor for Home HT66
$39.95 Save $12.00 RRP: $51.95
Infrared Carbon Dioxide Sensor, 5000ppm CO2 Concentration Detection, Air Quality Monitor for Smart Home, RV, HAVC
$31.95 Save $9.00 RRP: $40.95
WT8820 Portable Combustible Gas Detector Natural Gas Leak Detector Alarm High Sensitivity Test
$48.95 Save $15.05 RRP: $64.00
CO2 Meter CO2 Temperature and Humidity Sensor ndir CO2 Detector Air Quality Meter HG
$159.00 Save $80.00 RRP: $239.00
Bside Gas Leak Detector Combustible Natural Co2 Flammable Alcohol Lpg Methane Analyzer Rechargeable Buzzer Alarm Ppm Lel Tester
$38.95 Save $30.05 RRP: $69.00