Ks0041 keyestudio Analog Alcohol Sensor

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Introduction

This analog gas sensor - MQ3 is suitable for detecting alcohol. It can be used in a Breath analyzer. It has good selectivity because it has higher sensitivity to alcohol and lower sensitivity to Benzine. The sensitivity can be adjusted by A potentiometer. 
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Specification

  • Power Supply: 5V
  • Interface Type: Analog
  • Quick response and High sensitivity
  • Simple drive circuit
  • Stable and long service life
  • Size: 49.7*20mm
  • Weight: 6g

Connection Diagram


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Sample Code

///Arduino Sample Code
void setup()
{
  Serial.begin(9600); //Set serial baud rate to 9600 bps
}
void loop()
{
int val;
val=analogRead(0);//Read Gas value from analog 0
Serial.println(val,DEC);//Print the value to serial port
delay(100);
}

Resources

Video

http://www.keyestudio.com/wp/2016/05/ks0040-keyestudio-mq2-analog-gas-sensor-module/

PDF

https://drive.google.com/open?id=1h-RmEhi0Oa3r0YZvg7Dsg1MxgrYWdTQ_

Buy from

Official Website

http://www.keyestudio.com/keyestudio-analog-alcohol-sensor-for-arduino.html