Gravity: Analog Alcohol Sensor (MQ3) For Arduino - DFRobot

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Board Overview of Gravity: Analog Alcohol Sensor (MQ3)Front view of arduino alcohol sensor detecting ethanol concentration with MQ3 probeSide shot showing MQ3 sensor used in Arduino alcohol detection system for ethanol concentration monitoring.Angled shot of person using MQ3 sensor to detect alcohol leaks in a roomDetail of MQ3 alcohol sensor with Arduino interface for ethanol detection in air.Dimension of Gravity: Analog Alcohol Sensor (MQ3)Back of Gravity: Analog Alcohol Sensor (MQ3)Shpping List of Gravity: Analog Alcohol Sensor (MQ3)Detail of Gravity: Analog Alcohol Sensor (MQ3) Gravity: Analog Alcohol Sensor (MQ3) $6.90 SKU: SEN0128 - + An adjustable alcohol sensor using MQ3 probe for Arduino, with high sensitivity to alcohol, less to Benzine. Includes analog cable and supports plug-and-play. Purchase this product and earn 69 reward points, which are tied to VIP membership program. Learn More >
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IntroductionFeaturesSpecificationDocumentsShipping List Resource

Introduction

This is an Arduino Alcohol sensor. It uses a MQ3 probe which can be used in a Breathalyser. It has a high sensitivity to alcohol and less sensitivity to Benzine.

The sensitivity is able to be adjusted by the potentiometer. The output is proportional to the density of gas. You can use analog reading to read the data from this sensor.

To ease the difficulty of using this sensor,  a Gravity Interface is adapted to allow plug&play.  The Arduino IO expansion shield is the best match for this sensor connecting to your Arduino microcontrollers.

Features

  • Standard assembling structure (Times-of-5mm Center distance between four 3mm(0.12") mounting holes)
  • Easily recognitive interfaces of sensors ("A" for analog and "D" for digital)
  • Icons to simply illustrate sensor function 
  • High quality connector & potentiometer
  • Immersion gold surface

Specification

  • Power supply: 5V
  • Interface type: Analog
  • High sensitivity to alcohol and small sensitivity to Benzine
  • Fast response and High sensitivity
  • Stable and long life
  • Simple drive circuit
  • Size: 36.4x26.6mm(1.43"x1.05")

Documents

  • Wiki Doc          
  • Schematic
  • MQ-3 datasheet

Shipping List

  • Arduino Alcohol Sensor (MQ3) x1
  • Analog Cable x1

Resource

AllProjectsBlogTutorialCourseMedia DFRobot Gas Sensor Selection Guide

Blog DFRobot Gas Sensor Selection Guide

DFRobot Jun 26, 2022 GravityMore Gravity ProjectsGravity Projects Gravity: Analog Alcohol Sensor (MQ3) $0.00 Add to Cart Shop Now

Tag » Arduino Mq3 Sensor