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Free shipping !Keyestudio MQ-3 Alcohol Ethanol Sensor Detection Module for Arduino

KS0041
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KS0041 MQ-3KS0041 (2)KS0041 (7)KS0041 (8)KS0041 (6)KS0041 (4)

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.
 
Specification
  • Power supply: 5V
  • Interface type: Analog
  • Quick response and High sensitivity
  • Simple drive circuit
  • Stable and long service life

 

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);
}
 

 

 

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