MQ3 Alcohol Gas Sensor Module


This is a very easy to use low cost semiconductor Gas sensor Module with analog and digital output. This module uses MQ3 Alcohol gas sensor as a alcohol gas sensing element. It requires no external components just plug in Vcc & ground pins and you are ready to go.

For Digital output the threshold value can be easily set by an on-board potentiometer. Using this module you can easily interface MQ3 Alcohol sensor to any Microcontroller, Arduino or even Raspberry Pi.

Since this Gas Sensor module is sensitive to alcohol it can be used in breathalyser. MQ3 Sensor also has small sensitivity to Benzine

3 in stock


Technical Specifications:

1)Detection of gas: Ethanol, Alcohol , Benzine 2)Main chip: LM393, ZYMQ-3 gas detector
3)Working Voltage: DC 5V
4)Two-way signal output (TTL level output and analog output).
5)TTL output effectively signal for low level(when the output low level signal lights, can directly connected microcomputer).
6)Analog output 0 ~ 5v voltage, the higher the concentration, the higher the voltage.
7)Has a high sensitivity and good selectivity.
8)Has long service life and reliable stability.
9)Rapid response recovery features.

Product Dimensions LxWxH (mm):

32mm x 22mm x 27mm

Package Includes:

1x MQ3 module


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