Analog_Gas_Sensor(MQ3)_SKU_SEN0128

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 shopping analog gas sensor(mq3)_sku:sen0128 category: Product Manual category: SEN Series category: Sensor

category: Diagram category: DFRobot