MQ3 Alcohol Sensor Module
Product Details
The MQ3 Alcohol Sensor Module is a sensitive gas sensor specifically designed to detect alcohol concentration in the air. It is widely used in breathalyzer devices, alcohol detection systems, and safety monitoring applications. The sensor provides reliable detection of alcohol vapors, making it useful for both educational electronics projects and practical monitoring systems.
The MQ3 sensor works by measuring changes in the sensor’s internal resistance when exposed to alcohol vapors. These changes are converted into analog and digital output signals, which can be easily processed by microcontrollers such as Arduino, Raspberry Pi, ESP8266, and ESP32.
The module typically includes an onboard comparator and adjustable potentiometer, allowing users to adjust the sensitivity level and detection threshold. Its simple interface and stable performance make it a popular choice for DIY electronics, IoT projects, and embedded system development.
⚙️ Key Features:
Highly sensitive to alcohol vapors
Provides analog and digital outputs
Adjustable sensitivity using onboard potentiometer
Fast response and stable performance
Compatible with Arduino, Raspberry Pi, ESP32, and other microcontrollers
🔧 Common Applications:
Breath alcohol analyzer devices
Alcohol detection systems
Safety and monitoring systems
IoT and embedded electronics projects
Educational and research experiments
