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Shop the best prices on 7,802 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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993 - 1,024 of 7,802
Portable Air Quality Monitor Temperature Humidity Monitor Infrared Ndir Co2 Detector Indoor Co2 Det
$309.00 Save $160.00 RRP: $469.00
CO2 Carbon Dioxide Detector with Precise Sensor | Formaldehyde Tvoz Air Quality Monitor for Indoor
$129.00 Save $60.00 RRP: $189.00
Ozonanalysator O3 Luftqualitätsmonitor Tragbarer Handheld Ozongasdetektor Mit Intelligenter Sensor Technologie, Ideale Gaserkennung M Set
$189.00 Save $90.00 RRP: $279.00
WJL-6000 Freon Leak Detector Halogen Leak Detector R22 R410A R134A R1234YF Refrigerant Gas HVAC Air Conditioner Tester Tool
$99.00 Save $20.00 RRP: $119.00
MQ137 Ammonia Gas Detection Sensor Module NH3 Gas Sensor Module
$16.95 Save $2.00 RRP: $18.95
5 PCS Formic Acid Dispenser Formic Acid Beekeeping High Efficient Professional Formic Acid Evaporator for Beekeeping
$26.95 Save $16.00 RRP: $42.95
GN807 Combustible Gas Detector Alarm Digital Combustible Gas Detection 50-10000PPM Methane Gas Test
$34.95 Save $10.00 RRP: $44.95
Carbon Dioxide Detector 5-in-1 CO2 Temperature Humidity Formaldehyde TVOC Monitor - White
$31.95 Save $47.05 RRP: $79.00
3-In-1 CO Carbon Monoxide Monitor CO Temperature and Humidity Detector CO Air Quality Monitor HD LED Screen Gray
$54.00
NDIR CO2 Sensor Infrared Carbon Dioxide Sensor Module with Serial Port PWM Analog Output CO2 Gas Detector Module MH-Z14A
$54.00
WiFi Smart Air Quality Monitor CO2 Meter TVOC HCHO PM2.5 Tester Digital CO2 Sensor Formaldehyde Gas Detector Tuya APP B
$79.00
Oxygen Sensor AO-02 Gas Detector Compatible with AO2 AA428-210 AO2PTB-18.10
$89.00
Semiconductor CO2 Gas Sensor Carbon Dioxide Gas Sensor Air Quality Sensor Module UART Output JW01-CO2
$10.95
TPM-200A Carbon Monoxide Sensor Module Interference- High-Precision CO Air Quality Detection Sensor Module
$11.95
SW-743A Refrigerant Leak Detector High Sensitivity LCD Display DC4.5V Freon Tester for AC Car Fridge
$69.00
OCS-3F2.1 Ultrasonic Oxygen Sensor Oxygen Concentrator for Detects Purity and Flow 21-95.6% 0-20L, 0-2.5V Analog
$41.95
Tuya CO2 Dioxide Detector WIFI CO2 Monitor Meter Co2 Sensor Indoor Agricultural Greenhouse Air Humiture Sensor Monitor
$74.00
Tuya WiFi 15 in 1 Air Quality Detector Household Portable PM0.3 PM1.0 PM2.5 PM10 CO CO2 TVOC HCHO Tester WithMount,B
$54.00
Gas Leak Detector Combustible Propane Methane Leak Warning EU Plug Combustible Gas Alarm Sensor for Home Security
$17.95
SCD40 Gas Sensor Module Detector CO2 Carbon Dioxide Temperature and Humidity Sensor I2C Communication Gas Sensor Module
$59.00
Indoor Air Quality Detector High-Precision Real-Time Portable 10-in-1 Monitor with Alarm Air Quality Tester Indoor B
$47.95
-6000UV Halogen Leak Detector Freon Leak Detector R22 R410A R134A R1234YF Refrigerant Gas Air Conditioner Tester Tool
$40.95
NDIR CO2 Sensor Infrared Carbon Dioxide Sensor Module with Serial Port PWM Analog Output CO2 Gas Detector Module MH-Z14B
$54.00
12 in 1 Air Quality Monitor CO2 Monitor with Time/ Date Display WIFI PM2.5 PM10 CO CO2 TVOC HCHO Tester,White
$54.00
Tuya Wifi Gas Leak Detector Combustible Gas Alarm Color Screen Display Temperature for Kitchen Villa
$59.00 Save $5.00 RRP: $64.00
Air Quality Sensor with Real Time Data Recording CO CO2 HCHO AQI TVOC Detector
$89.00 Save $30.00 RRP: $119.00
Gas Detector HT66, Natural Methane Leak Detector 50-1000 PPM, Sound Alarm for Home Safety, Portable and Reliable
$119.00 Save $60.00 RRP: $179.00
Portable Turbidity Meter 0-1000 NTU Handheld Water Quality Tester
$169.00 Save $20.00 RRP: $189.00
Oxygen Sensor AO-02 Gas Detector Compatible with AO2 AA428-210 AO2PTB-18.10
$28.95 Save $6.00 RRP: $34.95
Carbon Dioxide Controller Single Channel Split Probe CO2 Monitor CO2 Pressure Reducer Valve for Greenhouse US Plug A
$229.00 Save $110.00 RRP: $339.00
Carbon Dioxide Detector, CO2 Alarm, Temperature and Humidity Detector
$54.00 Save $10.00 RRP: $64.00
Refrigerant & Combustible Gas-Leak Detector, PPM Freon Leak Detector
$59.00 Save $10.00 RRP: $69.00