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Shop the best prices on 7,892 great value gas detectors. Shopping for gas detectors is easy with Fruugo, with SALE discounts, offers and savings on Viewleaf, GreenZech, Habicare and more. Buy gas detectors online safely with Fruugo, with secure payment and fast shipping to Canada.

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2,785 - 2,816 of 3,200
Formaldehyde Detector TVOC Sensor CO2 PM2.5 Temperature Humidity Air Quality Tester 5 in 1 Black
$44.95 Save $19.05 RRP: $64.00
ANENG SZ309 Smart Multimeter 1999 Count High Precision Electrical Tester LCD Backlight AC/DC Voltmeter Ammeter Electrician Tools
$32.95 Save $18.00 RRP: $50.95
Impedance Amplifier for Radio Intercom High Low Impedance Conversion Device 1MΩ to 50Ω Built in Battery
$50.95 Save $18.05 RRP: $69.00
Breath Alcohol Tester High Accuracy Quick Response Wireless Portable Drunk Analyzer DC 5C White
$33.95 Save $18.00 RRP: $51.95
Black CO2 Carbon Dioxide Detector LCD TVOC HCHO Temperature Humidity Air Quality Monitor Meter
$41.95 Save $17.05 RRP: $59.00
Handheld Air Quality Detector, Meter Monitor Portable Rechargeable TVOC HCHO Tester
$46.95 Save $17.05 RRP: $64.00
4 in 1 Gas Detector LCD Display Compound Gas Measurement Detector Sound Light Vibration Alarm Data Record Combustible Gas Detector
$179.00 Save $60.00 RRP: $239.00
High-Precision Gas Tester Rechargeable Portable HCHO Alarm Trending TVOC Air Quality Formaldehyde Detector
$129.00
Tuya Smart Oxygen Concentration Air Detector CO Meter
$114.00 Save $35.00 RRP: $149.00
Electrochemical CH2O Formaldehyde Sensor Gas HCHO Sensor Module Smart Home Devices
$15.95 Save $8.00 RRP: $23.95
MQ138 Formaldehyde Gas Detection Sensor Formaldehyde Sensor Module Gas Sensor High Sensitivity 4.5-5.5V 10A TTL
$26.95 Save $13.00 RRP: $39.95
Portable Radon Detector Digital Domestic Radon Monitor Gas Monitoring Instrument Highly Sensitive Radon Gas Detector
$159.00 Save $80.00 RRP: $239.00
3X MH-Z19 MH-Z19E IR Infrared CO2 Sensor Module Carbon Dioxide Gas Sensor NDIR for CO2 Monitor 400-5000Ppm UART PWM(A)
$69.00 Save $35.00 RRP: $104.00
TVOC Sensor Air Quality Transmitter 485 High-Precision Harmful Gas Monitoring Wall-Mounted Tvoc Detector
$41.95 Save $22.05 RRP: $64.00
NDIR Carbon Dioxide CO2 Sensor Module MH-Z14A Serial Port PWM Analog Output 0-5000ppm
$59.00 Save $15.00 RRP: $74.00
NOYAFA NF-604 Halogen Gas Detector Air Conditioning Fluorine Leakage Detector, Automobile Refrigerant Snow Species Leak Detection Freon Halogen Instru
$74.00 Save $20.00 RRP: $94.00
Freon Leak Detector Halogen Gas Analyzer Air Conditioning Gas Detector Refrigerant Leak R134a CFCs HCFCs HFCs Meter
$64.00 Save $35.00 RRP: $99.00
Chlorine Gas Detector 050ppm Precision Fixed Gas Alarm with Sound and Light for Water Treatment
$1,599.00 Save $800.00 RRP: $2,399.00
Wired Headphones with Microphone
$359.00 Save $90.00 RRP: $449.00
Smart CO2 Detector - Real-Time Air Quality Monitor, Temp & Humidity Analyzer, Tuya App
$109.00
Smart Combustible Gas Leak Detector with 85dB Alarm, LCD Display, and Tuya Connectivity
$69.00
High Sensitivity Gas Leak Detector Alarm: Detects Natural Gas and LPG with 85dB Alert
$41.95
Gas Leak Detector with Display - Methane, Propane, Butane Alarm & Easy Installation
$54.00
Air Quality Phone App Monitor Co2 Formaldehyde Tovc Carbon Dioxide Temperature
$31.95 Save $16.00 RRP: $47.95
Natural Gas Leak Detector: Loud 85dB Alarm, High Sensitivity, Easy Ceiling Installation
$39.95
Jq-200 Jq-300 Intelligent Wireless Home Air Quality Monitor Co2 Tvoc Formaldehyde Pm2.5(jq-300) Temperature Humidity Detector
$74.00
Co2 Monitor Detector[metal Case] 4-in-1 Indoor With Co2 & Temperature & Humidity Meter Co2 Carbon D
$189.00
Combustible Gas Leak Detector Rechargeable Gas Detector Sniffer,Handheld Natural Gas Detector Locat
$89.00 Save $70.00 RRP: $159.00
Gas-Leak Detector，Handheld Portable Gas-Leak Detector with Audible Visual Alarm Alarm Combustible Gas-Leak Detector
$64.00 Save $30.00 RRP: $94.00
Détecteur de fuite de gaz halogène CFC HFC réfrigérant R134a R410a R22a Vérification CVC
$45.95 Save $13.05 RRP: $59.00
ST9700 Testeur de monoxyde de carbone portable, testeur de gaz CO, moniteur de qualité de l'air, détecteur de jauge
$69.00 Save $20.00 RRP: $89.00
Détecteur de CO2, moniteur de qualité de l'air à semi-conducteur, capteur de température et d'humidité H8 Plus ZNAZGG01
$31.95 Save $9.00 RRP: $40.95