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11:33 28 Oct 23

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15:50 24 Dec 21

Very good Robotics and electronics products , I have purchased 28 kits of Robotics and some electronics products ,all the products were very good. One thing is very nice that the owner of Ercoms is very supportive. Thank you Ercoms Robotics team for support us.Some images of Robotics after assembling are....

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14:13 10 Feb 21

A very good place for buying electronic itemsRecently boughtArduino unoUltrasonic sensorBO motorWheelscastor wheelL293DServo motorBattery holderBreadboardjumper wiresThe shopkeeper is very knowledgeable...

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MQ3-Alcohol Detector Gas Sensor Module

Name: MQ3-Alcohol Detector Gas Sensor Module
SKU: 62-ERMQS002
Availability: InStock
Rating: 4.50 (6 reviews)

Rated 4.50 out of 5 based on 6 customer ratings

(6 customer reviews)

Original price was: ₹ 149.00.Current price is: ₹ 144.00.

Quick Review:

Power Supply: 5V DC
Sensitivity Range: 25 ppm to 500 ppm (alcohol)
Preheat Time: Requires around 24 hours of preheating for the most accurate results.
Temperature Range: Operates between -10°C and 50°C
Output Types:
- Analog voltage output (A0) for real-time concentration measurement
- Digital output (D0) with adjustable threshold

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The MQ3 Alcohol Detector Gas Sensor Module is a highly sensitive sensor specifically designed for detecting alcohol vapors in the air. This module is ideal for creating breathalyzers, vehicle safety systems, and various applications requiring alcohol detection. Thanks to its ease of use and compatibility with microcontrollers, the MQ3 sensor is popular in both DIY electronics projects and professional safety systems.

Key Features:

Alcohol Vapor Detection: Specially designed to detect alcohol vapors, making it ideal for breathalyzers and alcohol monitoring.
Dual Output Options:
- Analog Output: Provides a variable voltage output proportional to the alcohol concentration, allowing real-time monitoring.
- Digital Output: Outputs a HIGH or LOW signal when the alcohol concentration exceeds a set threshold, which can be adjusted using an onboard potentiometer.
Fast Response and High Sensitivity: Quickly detects alcohol vapors with high sensitivity, making it suitable for a range of real-time monitoring applications.
Wide Detection Range: Can detect alcohol levels from approximately 25 ppm to 500 ppm.
Operating Voltage: Works on 5V DC, making it compatible with common microcontrollers such as Arduino, Raspberry Pi, and other development boards.

Technical Specifications:

Power Supply: 5V DC
Sensitivity Range: 25 ppm to 500 ppm (alcohol)
Preheat Time: Requires around 24 hours of preheating for the most accurate results.
Temperature Range: Operates between -10°C and 50°C
Output Types:
- Analog voltage output (A0) for real-time concentration measurement
- Digital output (D0) with adjustable threshold
Size: Compact and mountable on PCB boards for easy integration

How It Works:

The MQ3 sensor module utilizes a tin dioxide (SnO₂) semiconductor material that reacts to alcohol vapors. When exposed to alcohol, the sensor’s resistance decreases, which causes a change in output voltage. This change can be read by a microcontroller to determine the alcohol concentration in the air.

Integration and Usage:

Connecting the MQ3 module to microcontrollers is straightforward, with both analog and digital output options to suit various application needs. It provides reliable, stable measurements, making it a practical solution for developers and DIY enthusiasts alike.

Applications:

Breathalyzers: Widely used in personal and law enforcement breathalyzers to detect blood alcohol levels.
Automobile Safety Systems: Used in vehicles to detect alcohol in the air inside the cabin, helping reduce the risk of drunk driving.
Workplace Safety Systems: Monitors alcohol levels in sensitive areas of workplaces where the presence of alcohol may be hazardous.
Industrial Monitoring: Ensures compliance with safety regulations by preventing alcohol exposure in designated areas.
Drunk Driver detection system
Portable alcohol detector.

Important Notes:

Calibration: For the best accuracy, calibrate the sensor in a clean-air environment before use.
Warm-Up Period: Allow the sensor to preheat for at least 24 hours to stabilize for precise measurements.
Ventilation: Proper airflow around the sensor ensures more accurate readings.

The MQ3 Alcohol Detector Gas Sensor Module is a practical, reliable, and affordable solution for any project requiring alcohol detection, offering versatile applications in safety, automotive, and IoT projects.

Package Includes:

1Piece-MQ3-Alcohol Detector Gas Sensor Module

Shipping & Delivery

We try our best to reach each and every corner of India using a few of the best courier services running in the Country such as Delhivery, DTDC, BlueDart, XpressBees, Ecom Express, etc. as per the feedback for the courier partner at the customer’s location. A few of the interior parts of India which are not covered by these courier services are covered by India-Post by us. We apply our best effort on daily basis to dispatch the order the same day it is ordered or within the next 24 hours of the order placed. Most of the orders that are placed before 1 PM are dispatched and shipped the same day. The orders placed post that is scheduled for next day shipment. The same effort is applied throughout the week including weekdays and sometimes weekends and public holidays as well. We facilitate local pickup (self-pickup for the local customers) on the weekdays and partially on weekends also.

Ercoms Warranty

All electronic items are imported, therefore, they do not come with a warranty or guarantee. Rest assured, We meticulously inspect each product before dispatch. In the rare event of any defects, replacements will be provided after a thorough examination.

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Ercoms customers from any kind of manufacturing defects. Reimbursement or replacement will be done against manufacturing defects only.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

**Note: Shipping Charges Applied When Need Replacement or Refund.

Other Info

Country of origin: China
Brand/Manufacturer: Generic
Packer/ Importer: Ercoms Robotics Lab
No Warranty/Guarantee Of Chinese Goods.

6 reviews for MQ3-Alcohol Detector Gas Sensor Module

Rated 4 out of 5

Rudra (verified owner) – June 1, 2017

The product is firmly packed.
Rated 5 out of 5

Divyansh (verified owner) – September 19, 2018

Very fast delivery.
Rated 5 out of 5

Riaan (verified owner) – November 14, 2018

Good service.
Rated 4 out of 5

Rahul (verified owner) – April 7, 2019

Very fast delivery.
Rated 5 out of 5

Arjun (verified owner) – July 21, 2019

Very fast delivery.
Rated 4 out of 5

Siddharth (verified owner) – November 7, 2020

Good quality.

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Google Review

MQ3-Alcohol Detector Gas Sensor Module

Quick Review:

Key Features:

Technical Specifications:

How It Works:

Integration and Usage:

Applications:

Important Notes:

Package Includes:

Shipping & Delivery

Ercoms Warranty

What voids warranty:

Other Info

6 reviews for MQ3-Alcohol Detector Gas Sensor Module

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