MQ3 Alcohol Sensor Module

  1. Power requirements: 5 VDC @ ~165 mA (heater on) / ~60 mA (heater off).
  2. Current Consumption: 150mA.
  3. DO output:  0.1 and 5V.
  4. AO output: 0.1- 0.3 V (relative to pollution), the maximum concentration of a voltage of about 4V
  5. Detecting Concentration: 0.05-10mg/L Alcohol.

93.22 (Exc. GST)


MQ3 Alcohol Sensor Module


MQ3 Alcohol Sensor Module is made using Alcohol Gas Sensor MQ3. It is a low-cost semiconductor sensor which can detect the presence of alcohol gases at concentrations from 0.05 mg/L to 10 mg/L. The sensitive material used for this sensor is SnO2, whose conductivity is lower in clean air. Its conductivity increases as the concentration of alcohol gases increases. It has high sensitivity to alcohol and has a good resistance to disturbances due to smoke, vapor, and gasoline. This module provides both digital and analog outputs. MQ3 alcohol sensor module can be easily interfaced with Microcontrollers, Arduino Boards, Raspberry Pi etc.

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.

Features: MQ3 Alcohol Sensor Module

  • 5V operation
  • LEDs for output and power
  • Output sensitivity adjustable
  • Analog output 0V to 5V
  • Digital output 0V or 5V
  • Low Cost
  • Fast Response
  • Stable and Long Life
  • Good Sensitivity to Alcohol Gas
  • Both Digital and Analog Outputs

Specifications: MQ3 Alcohol Sensor Module

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

* Product Images are shown for illustrative purposes only and may differ from actual product.

SKU: TFF3-001 Categories: , Tags: , ,
Weight 0.007 kg
HSN Code


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