Alcohol Gas Sensor – MQ3 ,

 28.0

Product ID: 17869 SKU: Sen-17869 Categories: , Tags: ,

This alcohol sensor is suitable for detecting alcohol concentration on your breath, just like your common breathalyzer. It has a high sensitivity and fast response time. Sensor provides an analog resistive output based on alcohol concentration. The drive circuit is very simple, all it needs is one resistor. A simple interface could be a 0-3.3V ADC.

This sensor has a high sensitivity and fast response time. The sensor’s output is an analog resistance. The drive circuit is very simple; all you need to do is power the heater coil with 5V, add a load resistance, and connect the output to an ADC.

FEATURES:

  • 5V DC or AC circuit
  • Requires heater voltage
  • Operation Temperature: -10 to 70 degrees C
  • Heater consumption: less than 750mW* 16.8mm diameter
  • 9.3 mm height without the pins

Technical Data

  • Concentration : 0.05 mg/L ~ 10 mg/L Alcohol
  • Operating Voltage : 5V ±0.1
  • Current Consumption : 150mA
  • Operation Temperature : -10°C ~ 70°C

Pin Out

  • VCC – Input Power Supply
  • GND – Supply Ground
  • DO – Digital Output
  • AO – Analog Output

DOCUMENTS:

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