Alcohol Gas Sensor MQ-3

(1) 5 out of 5 stars Write reviewReport bug
  • Part No :
  • SEN-1297
  • Availability:
  • In Stock
  • Shipping :
  • Same Day
  • Weight:
  • 0.03Kg
  • Mfr.Part.No:
  • MQ-3
  • Quality Rank:
  • 100/100
Rs 275
(Tax Excl.)
Quantity :
Description: 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.

Please review the datasheet for conversions to ppm then for BAC.

  • 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
Sort by: Recently  /  Helpful Write review

Excellent sensor

By vivek from N/A on June 29, 2016
simple interface
good tutorial
thank you rhydolabz
Was this review helpful to you?   Yes   No

There are currently no any question about this product.

Ask a question about Alcohol Gas Sensor MQ-3

Report issue about the Alcohol Gas Sensor MQ-3

Ask a question about the Alcohol Gas Sensor MQ-3

Report issue about the Alcohol Gas Sensor MQ-3

Request price match for the Alcohol Gas Sensor MQ-3

Found this item with same quality and at a lower price but prefer to buy from

Please submit the url of the better price you saw. We will lauch an immediate investigation and try our best to beat the price, if it proves to be the same product. We will notify you the result by email. Thanks a lot for helping us to maintain competitive prices.

Alcohol Gas Sensor MQ-3