The MQ-3 Alcohol Gas Sensor is a highly sensitive and reliable module designed for detecting various gases, including alcohol, benzine, CH4, hexane, LPG, and CO. The sensitive material of the MQ-3 gas sensor is SnO2, which has lower conductivity in clean air, making it an ideal choice for gas detection applications. This module is perfect for use in a variety of projects, from simple gas detection systems to more complex applications such as breathalyzers and gas leak detectors.

The MQ-3 module is designed to be easy to use and integrate into your projects, with a simple interface and a range of compatible components, including MP3 modules, servo motors, and ULN2003 driver boards. Whether you're a hobbyist, student, or professional, this module is a great choice for anyone looking to add gas detection capabilities to their project.

Here are the key specifications of the MQ-3 Alcohol Gas Sensor:

• Sensitive Material: SnO2


• Detected Gases: Alcohol, Benzine, CH4, Hexane, LPG, CO


• Conductivity: Lower conductivity in clean air


• Compatibility: MP3 Module, Servo Motor, ULN2003 Driver Board

The MQ-3 Alcohol Gas Sensor has a wide range of applications, including:

• Gas Detection Systems: Use the MQ-3 module to detect gases in a variety of environments, from industrial settings to home and office spaces.


• Breathalyzers: Integrate the MQ-3 module into a breathalyzer system to detect alcohol levels in breath samples.


• Gas Leak Detectors: Use the MQ-3 module to detect gas leaks in pipelines, storage tanks, and other areas where gases are stored or transported.


• Environmental Monitoring: Use the MQ-3 module to monitor gas levels in the environment, helping to detect and prevent pollution.