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Shop the best prices on 8,044 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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2,721 - 2,752 of 3,200
HD02 Leak Detector R22/R32/R134a Gas Detector Analyzer Rechargable Refrigerant Gas Air Conditioning Tester Tool
$37.95 Save $46.05 RRP: $84.00
CO Concentration Detection Carbon Monoxide Sensor with Alarm Portable Temp Humidity Meter for Home Indoor Use
$47.95 Save $16.05 RRP: $64.00
Portable Professional High-Accuracy Breathalyzers for with LCD Digital Display Personal Breath Dete
$18.95 Save $19.00 RRP: $37.95
Gas Leak Detector with Display - Methane, Propane, Butane Safe Alarm & Easy Installation
$59.00
C8D Dual-Channel (0-5000 Ppm) CO2 Sensor High-Precision Infrared Carbon Dioxide CO2 Concentration Detection Module
$31.95
SC8 Single-Channel (400-5000 Ppm) CO2 Sensor High-Precision Infrared CO2 Concentration Detection Module
$22.95
Semiconductor Gas Sensor Combustible Gas Unit MQ I2C Interface Air Quality Detection Module for DIY Development Kit
$28.95
Portable Breath Tester Air Blowing Drunk Detector for Traffic Security Inspection Japanese Unit
$37.95 Save $21.05 RRP: $59.00
HABOTEST HT56 Pro Pen-Type Stretchable Gas Leak Detector with ble and Visual Alarms Highly Sensitive Sniffer Natural Gas Detector to Locate
$59.00 Save $15.00 RRP: $74.00
Digital Thickness Gauge Electronic Caliper Thickness Meter 0‑20mm Range with LCD Digital Display
$44.95 Save $19.05 RRP: $64.00
Water Quality Tester Liquid PH Meter LCD Backlight Digital Display for Drinking Pool
$84.00 Save $20.00 RRP: $104.00
PEAKMETER PM8211 No contact Handheld Electric Digital Voltage Tester Multimeter
$79.00 Save $25.00 RRP: $104.00
Mini Air Ion Tester Counter, 1 PCS Mini Car Air Ion Tester with a Wrist Strap Meter Counter for Negative Air Ion Generator A3DK8
$119.00 Save $20.00 RRP: $139.00
Gas Detector High Sensitivity LCD Backlit Portable Gas Leakage Detector for Outdoor Camping Black
$54.00 Save $15.00 RRP: $69.00
Portable Breathalyzer, Breathalyzer Breath Tester Meter LED Digital Display Accurate Portable Testing Tool for Drivers Or Home Use AZMO2
$41.95 Save $17.05 RRP: $59.00
Digital Angle Gauge Magnetic Protractor Inclinometer Level Angle Finder Angle Cube Level Box With Magnes Angle Protractor
$39.95 Save $19.05 RRP: $59.00
Brix Refractometer Meter Gauge Dual Scale Handheld Measuring Tool for Sugar Brewing
$42.95 Save $21.05 RRP: $64.00
LXH‑8 1/2 Cold Water Meter Highly Sensitive Remote Water Gauge Meter Houshold Use
$99.00 Save $20.00 RRP: $119.00
CO2 Detector Air Quality Monitor Semiconductor High Resolution Adjustable Brightness CO2 Detection Sensor for Home Greenhouse Growing White
$59.00 Save $15.00 RRP: $74.00
XRCLIF‑300E Digital Infrared Thermometer Non Contact Thermometer Temperature Measurement Tool for Kitchen Industry
$51.95 Save $17.05 RRP: $69.00
TTE01502 1000x USB Digital Industrial Electronic Microscope for Phone Repair Jewelry Appraisal
$46.95 Save $17.05 RRP: $64.00
SMART SENSOR AS971 LCD Display Digital Wood Moisture Humidity Tester 0~40℃
$41.95 Save $17.05 RRP: $59.00
VOC Gas Sensor Module AGS01DB Air Quality Sensor Module for HVAC Refrigeration
$17.95 Save $18.00 RRP: $35.95
Air Quality Monitor Indoor PM2.5 Meter Mini Portable Smart Sensor Temperature Humidity Tester with Prompt Alarm
$94.00 Save $25.00 RRP: $119.00
Digital Satellite Finder TV Antenna Signal Finding Strength Meter with Compass Buzzer Alarm 13‑18VDC
$35.95 Save $18.05 RRP: $54.00
Refrigerant Leak Detector Halogen Gas CFC HFC Refrigerant Leak Detector R134a R410a R22a HVAC Checke
$51.95 Save $17.05 RRP: $69.00
Co2 Air Quality Monitor Wifi 4-in-1 Air Detector Co2 Temperature Humidity Office Grow Tent Wine Cel
$199.00
Gas Leak Detector Propane Natural Gas Alarm with LCD Screen High Decibel Battery Powered Mini Portable Combustible Gas
$32.95 Save $21.05 RRP: $54.00
Oxygen Sensor AO-02 Gas Detector Compatible with AO2 AA428-210 AO2PTB-18.10 2pcs unbrand
$64.00
MICS-5524 Air Quality Gas Sensor Module CO H2 Methane Ethanol Detection Board High Sensitivity for I2C for Arduino DIY
$15.95 Save $6.00 RRP: $21.95
Tuya Wifi Gas Leak Detector Combustible Gas Alarm Color Screen Display Temperature for Kitchen Villa Warehouse
$59.00 Save $20.00 RRP: $79.00
1PCS Formaldehyde Sensor Module MQ138 MQ-138 Sensor Module unbrand
$29.95