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  3. Gas / PM2.5/ Alcohol - 39 items
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XD-46 MQ137 Ammonia NH3 Sensor Module Analog Level Signal Output
$ 36.08 36.08 USD
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MQ-9 Carbon Monoxide CO Alarm Combustible Gas Sensor Module for Arduino
$ 1.39 1.3900000000000001 USD
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D45 CJMCU-811 CCS811 Digital Gas Sensor
$ 7.77 7.7700000000000005 USD
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MG811 CO2 Carbon Dioxide Gas Sensor Module Detector with Analog Signal Output
$ 0.14 0.14 USD
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MQ-2 MQ2 Gas Sensor Module Smoke Methane Butane Detection for Arduino
$ 1.11 1.11 USD
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PMS7003 PM2.5 Air Particle Dust laser Sensor Module
$ 22.90 22.900000000000002 USD
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PMS5003ST PM2.5 Formaldehyde Temperature and Humidity laser Sensor Digital Module
$ 39.69 39.69 USD
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PMS5003 PM2.5 Air Particle Dust laser Sensor Digital Module
$ 16.79 16.79 USD
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MQ9 (CO) Carbon Monoxide Combustible Gas Sensor
$ 3.05 3.0500000000000003 USD
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MQ-9 Carbon Monoxide Gas Sensor
$ 1.53 1.53 USD
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MQ9 Carbon Monoxide Alarm Combustible Gas Sensor Module for Arduino
$ 1.53 1.53 USD
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MQ-8 Smoke Liquefied Flammable Methane Gas Sensor Module for Arduino Diy Starter Kit
$ 1.53 1.53 USD
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MQ-8 Hydrogen gas Sensor
$ 3.66 3.66 USD
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MQ-8 Hydrogen Gas Methane Detection Sensor
$ 0.69 0.6900000000000001 USD
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MQ-7 Carbon Monoxide Sensor
$ 0.61 0.61 USD
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MQ-7 Carbon Monoxide (CO) Sensor
$ 3.82 3.8200000000000003 USD
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MQ7 Carbon Monoxide CO Gas Sensor Detection Module for arduino
$ 1.53 1.53 USD
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MQ-6 LPG Gas Sensor Module
$ 1.37 1.37 USD
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MQ-6 LP Gas Sensor
$ 2.29 2.29 USD
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MQ-6 Combustible Gas Sensor
$ 0.92 0.92 USD
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MQ-5 LPG Gas Sensor Module
$ 1.53 1.53 USD
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MQ-5 Gas Sensor Module
$ 1.22 1.22 USD
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MQ-5 Gas Sensor
$ 0.76 0.76 USD
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MQ-4 Methane gas Sensor
$ 1.68 1.68 USD
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MQ4 Gas Methane Sensor Module
$ 1.22 1.22 USD
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MQ-4 Combustible gas sensor
$ 1.07 1.07 USD
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MQ-3 Smoke Sensor Drinking & Ethanol Vapor Detection For Alcohol
$ 1.22 1.22 USD
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MQ-3 Alcohol Ethanol Sensor Breath Gas Ethanol Detection for Arduino 51
$ 1.53 1.53 USD
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MQ-3 Alcohol decector sensor Module
$ 2.29 2.29 USD
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MQ-2 Smoke Gas Sensor Module / Liquefied Natural Gas Module
$ 1.53 1.53 USD