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Shop the best prices on 8,068 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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1,249 - 1,280 of 3,200
6in1 Digital Air Quality Monitor Detector Formaldehyde TVOC White
$31.95 Save $8.00 RRP: $39.95
CO Gas Sensor Carbon Monoxide Sensor UART Digital Output SC16B-CO
$24.95 Save $3.00 RRP: $27.95
PH Probe Sensor Waterproof Accurate Measurement Quick Response PH Electrode for Q9 BNC Plugs 1.9m
$41.95 Save $17.05 RRP: $59.00
Gas Detector Portable Gas Leak Locat Determine Er Lcd Display Sound- Alarm Gas Yzer
$129.00
K5C Mini Carbon Dioxide Detector CO Tester Air Quality Portable Monitor LED Screen USB Typc-C Charging Indoor B
$74.00 Save $5.00 RRP: $79.00
Professional Smart Sensor St8990 Monitor Rechargeable 4in1 O₂ Lel Co H₂s Gas Detector Tester Sensor With Backlight Alarm
$289.00
6 In 1 Pm2.5 Pm10 Hcho Tvoc Detector Co Co2 Formaldehyde Monitor Home Office Air Quality Tester,white
$209.00
Smart Sensor As5750 Portable Refrigerant Gas Leakage Detector Halogen Gas Detector
$139.00
Car Fuel Leak Detector for , 9818707580
$59.00
3-In-1 CO Carbon Monoxide Monitor CO Temperature and Humidity Detector CO Air Quality Monitor HD LED Screen Gray
$45.95 Save $13.05 RRP: $59.00
BSIDE G1 Combustible Gas Detector Ambient Temperature Natural Gas Methane Propane Gasoline Leak Tester
$48.95 Save $20.05 RRP: $69.00
O2 Gas Detector Oxygen Detector Intelligent SENSOR AR8100 Oxygen Detector Rechargeable LCD O2 Gas Meter Oxygen Monitor
$139.00 Save $70.00 RRP: $209.00
ETCR-1860 1kV-500kV High Voltage Detector Wrist Mounted High Voltage Alarm for Power Maintenance
$46.95 Save $17.05 RRP: $64.00
Carbon Dioxide Controller Single Channel Split Probe CO2 Monitor CO2 Pressure Reducer Valve for Greenhouse EU Plug B
$229.00 Save $120.00 RRP: $349.00
USB Charging Carbon Dioxide Air Quality Detector Temperature Humidity Environment Monitor CO2 Gas C
$69.00 Save $10.00 RRP: $79.00
Stainless Steel FOB Detector Foam on Beer Detector Beer Foam Detection Equipment Accessories
$119.00 Save $90.00 RRP: $209.00
9 in 1 Air Quality Monitor CO2 Meter Carbon Dioxide Detector CO2 CO TVOC HCHO PM2.5 PM1.0 PM10 Tempe
$74.00 Save $15.00 RRP: $89.00
Tuya WiFi 15in1 Air Quality Detector Household Portable PM0.3 PM1.0 PM2.5 PM10 CO CO2 TVOC HCHO Tester White
$89.00 Save $30.00 RRP: $119.00
SCD41 Gas Sensor Module Detects CO2 Carbon Dioxide Temperature C
$37.95 Save $12.00 RRP: $49.95
MS1100 gas sensor module, high-precision TVOC and CO2 detection
$11.95 Save $6.00 RRP: $17.95
Mini Carbon Monoxide Detector CO Air Quality Monitor HD LED Screen
$48.95 Save $30.05 RRP: $79.00
WiFi Smart Carbon Monoxide Alarm,WiFi CO Gas Detector with Tuya
$35.95 Save $5.00 RRP: $40.95
MQ137 Ammonia Gas Detection Sensor Module NH3 Gas Sensor Module Household Appliance Accessories Ana
$19.95
Electrochemical NH3 Ammonia Gas Sensor Indoor Air Quality Environmental Monitoring SC05-NH3 Random Colors
$47.95
SCD41 Gas Sensor Module Detects CO2 Carbon Dioxide Temperature A
$40.95 Save $18.05 RRP: $59.00
SCD41 Gas Sensor Module Detects CO2 Carbon Dioxide Temperature D
$41.95 Save $17.05 RRP: $59.00
Air Quality Monitor 5 in 1 Air Quality Detector C02 Detector White
$24.95 Save $10.00 RRP: $34.95
Rosin Atomizing Pen Short Circuit Detector,for Motherboard Repair
$21.95 Save $8.00 RRP: $29.95
ANENG GN803 Gas Leak Detector Methane Combustible Gas Testers
$31.95 Save $13.00 RRP: $44.95
Portable Carbon Dioxide Detector Air Quality Tester CO2 Meter
$52.95 Save $21.05 RRP: $74.00
CO2 Detector CO2 Monitor Carbon Dioxide Temperature Humidity Meter
$59.00 Save $20.00 RRP: $79.00
Mini Smart WIFI Mini CO Detector Indoor Air Quality Monitor CO Tester
$48.95 Save $20.05 RRP: $69.00