Gas Sensor Board – MQ-3

Detects alcohol in exhaled breath like a breathalyzer, with analog and digital output and a threshold trimmer; power supply from 2.5 to 5 Vdc.
Gas Sensor Board - MQ-3 - Image 1
Gas Sensor Board - MQ-3 - Image 3
Gas Sensor Board - MQ-3 - Image 4
Gas Sensor Board - MQ-3 - Image 5

SKU 2850-MQ3GASEAN 8219671076050Item type: Assembled,

Description

Compact board based on the MQ-3 sensor. Featuring high sensitivity and a very fast response time, this sensor can detect blood alcohol concentration through breath, just like a common breathalyzer. The sensor provides an output resistance value based on alcohol concentration. It has a digital output, an analog output, a trimmer for sensitivity adjustment, and status LEDs for power and output signal. Power supply: 2.5 to 5 Vdc, dimensions (mm): 40×21. Can be used with Arduino or other microcontrollers.

Technical specifications

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