Analog Gas Sensor MQ3 SKU SEN0128

SKU:SEN0128

Analog Alcohol Sensor

Introduction

The analog gas sensor - MQ3 is suitable for detecting alcohol, this sensor can be used in a Breathalyser.It has a high sensitivity to alcohol and small sensitivity to Benzine. The sensitivity can be adjusted by the potentiometer.

Specification

  • Power supply needs: 5V
  • Interface type: Analog
  • High sensitivity to alcohol and small sensitivity to Benzine
  • Fast response and High sensitivity
  • Simple drive circuit
  • Stable and long life
  • Size: 36.4x26.6mm

Connecting Diagram

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);
}

Version history

Analog Gas Sensor(MQ3) V1

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