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Shop the best prices on 5,998 great value gas detectors. Shopping for gas detectors is easy with Fruugo, with SALE discounts, offers and savings on Viewleaf, Aqara, Habicare and more. Buy gas detectors online safely with Fruugo, with secure payment and fast shipping to Canada.

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65 - 96 of 3,200
Ammonia Sensor Module 5‑500ppm Ammonia Detection Sensor Board TTL Output for Testing
$43.95 Save $15.05 RRP: $59.00
Gas Detector Multifunctional ABS Housing Dustproof IP65 Gas Monitor Meter for Oil Refining 100‑240V EU Plug
$199.00 Save $50.00 RRP: $249.00
Gas Concentration Detector Meter 3.5 Inch TFT Color Display Handheld Portable Gas Analyzer for CO O2
$1,149.00 Save $350.00 RRP: $1,499.00
CO2 Sensor Module 0‑10000ppm Carbon Dioxide Detection Sensor Board TTL Output for Testing
$59.00 Save $20.00 RRP: $79.00
High Precision Carbon Dioxide Sensor, 400-5000ppm CO2 Transmitter for Agricultural Greenhouse, 120-4~20mA Current Output
$89.00 Save $30.00 RRP: $119.00
Portable Gas Detector Made of Steel Alloy and ABS Rubber for Testing Nitrogen Purity of Automobile Tires
$469.00 Save $155.00 RRP: $624.00
Halogen Gas Leak Detector CFC HFC Refrigerant R134a R410a R22a HVAC Check
$39.95 Save $12.00 RRP: $51.95
ANENG GN801 Gas-sensitive Semi-conduct Detector 300~10000PPM Gas Leakage Analyzer Combustible Meter Environment Test Sensor Tool
$34.95 Save $11.00 RRP: $45.95
Air Quality Monitor CO2 Air Detector Carbon Dioxide Detector Temperature Humidity Sensor Real Time Reading
$51.95 Save $17.05 RRP: $69.00
MASTFUYI FY8830 Portable Gas Leak Detector Natural Gas Detector Combustible Gas Detector With ble And Visual Alarm Gas Sniffer Tool
$29.95 Save $9.00 RRP: $38.95
CO2 Air Detector Carbon Dioxide Detector Agricultural Production Greenhouse CO2 Monitor White
$39.95 Save $12.00 RRP: $51.95
WiFi Gas Alarm Plug in Combustible Gas Detector for Tuya APP Control Support Flammable Gases Methane Butane Detecting for Home RV
$34.95 Save $10.00 RRP: $44.95
ETCR-1860 1kV-500kV High Voltage Detector Wrist Mounted High Voltage Alarm for Power Maintenance
$46.95 Save $17.05 RRP: $64.00
Aquarium CO2 Carbon Dioxide Monitor Glass Drop Tester Detector
$17.95 Save $5.00 RRP: $22.95
2.8-inch LCD CO2 Concentration Tester Mini Carbon Dioxide Detector Humidity & Temperature Meter Air Quality Monitor 1200mAh Lithium Battery CO2 Meter
$37.95 Save $11.00 RRP: $48.95
Air Quality Monitor CO2 Detector 3 in 1 Accurate Tester for CO2 Temperature Humidity NDIR Sensor Carbon Dioxide Meter Concentration Tester with Alarm
$79.00 Save $20.00 RRP: $99.00
3.2inch TFT Display Carbon Dioxide Detector Portable CO2 Tester Rechargeable Air Quality Meter with Storage Box Support Generate and Export PDF File
$219.00 Save $60.00 RRP: $279.00
LS122 Portable Infrared Luminance Detector IR Rejection Detector
$64.00 Save $20.00 RRP: $84.00
Capteur de dioxyde de carbone CO2 infrarouge S8-0053 400-2000 ppm Communication série / PWM
$59.00 Save $15.00 RRP: $74.00
Détecteur de gaz d'oxyde nitrique portable USB 5 V, alarme de concentration de gaz nocifs NO 0 à 250 ppm
$359.00 Save $100.00 RRP: $459.00
BSIDE G1 Combustible Gas Detector Room Temperature Natural Gas Methane Propane Gasoline Leak Tester
$30.95 Save $10.00 RRP: $40.95
Détecteur d'oxygène dissous par fluorescence, capteur étanche pour aquaculture, 12-24 V
$189.00 Save $50.00 RRP: $239.00
Portable and sensitive pen-type gas detector, combustible gas tester, for industry and catering
$24.95 Save $8.00 RRP: $32.95
4 in 1 Gas Detector CO H2S O2 LEL Accurate Measurement Sound Light Vibration Alarm Backlit Display Gas Detector
$119.00 Save $40.00 RRP: $159.00
4 in 1 Gas Detector CO H2S O2 EX Tester Analyzer LCD Display Rechargeable Sound Light Vibration Alarm Air Quality Tester
$189.00 Save $50.00 RRP: $239.00
MCU‑811 CCS811 Digital Carbon Dioxide and Carbon Monoxide Gas Sensor Air Quality Gas Sensor
$31.95 Save $10.00 RRP: $41.95
Mini Combustible Gas Detector Methane Natural Gas Leak Tester Sensor for Home HT66
$35.95 Save $11.00 RRP: $46.95
WT8820 Portable Combustible Gas Detector Natural Gas Leak Detector Alarm High Sensitivity Test
$44.95 Save $14.05 RRP: $59.00
2X Multi Gas Detector Gas Meter O2 H2S CO LEL 4 in 1 Oxygen Hydrogen Sulfide Carbon Monoxide Combustible
$289.00 Save $120.00 RRP: $409.00
Détecteur de gaz 4 en 1 CO H2S O2 LEL Mesure précise Son Lumière Vibration Alarme Affichage rétroéclairé Détecteur de gaz
$139.00 Save $40.00 RRP: $179.00
ZG09 CO2 Gas Sensor 485 Signal Output Module CO2 Module S8 0053
$69.00 Save $30.00 RRP: $99.00
Air Quality Monitor, Ammonia Test Meter 3.5 Inch LCD NH3 Concentration Tester Ammonia Detector Ammonia Alarm Device
$139.00 Save $60.00 RRP: $199.00