MQ3 Alcohol Gas Sensor Module

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This semiconductor gas sensor detects the presence of alcohol gas at concentrations from 0.04 mg/L to 4 mg/L, a range suitable for making a breathalyser. The sensor’s simple analog voltage interface requires only one analog input pin from your microcontroller.

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Frequently Bought Together

MQ3 Alcohol Gas Sensor Main+Arduino Nano R3 Main+400 Tie Point Breadboard Top+Usb_Main
Price for all:   187.00 EGP

Description

MQ3 alcohol gas sensor detects the concentration of alcohol gas in the air and ouputs its reading as an analog voltage. The concentration sensing range of 0.04 mg/L to 4 mg/L is suitable for breathalysers (the legal limit of breath alcohol concentration, or BrAC, in most US states is 0.08 grams per 210 liters, or 0.38 mg/L). The sensor can operate at temperatures from -10 to 50°C and consumes less than 150 mA at 5 V. Please read the datasheet for more information about the sensor.

MQ3 Alcohol Gas Sensor Module Features

  • 5V DC or AC circuit
  • Requires heater voltage
  • Operation Temperature: -10 to 70 degrees C
  • Heater consumption: less than 750mW

Data Sheet

Additional information

Weight18 g

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