MQ-3 Alcohol Gas Sensor Module

The MQ-3 Alcohol Gas Sensor Module is a high-sensitivity sensor designed to detect alcohol vapors and other gases, such as carbon monoxide (CO) and ammonia (NH₃), in the air. This sensor is widely used in breath alcohol detection systems, air quality monitoring, and various safety applications. With its reliable performance, quick response time, and ease of integration, the MQ-3 module is ideal for both professional and DIY projects requiring precise gas detection and monitoring.

Key Features:

• High Sensitivity to Alcohol Vapors: Specifically tuned to detect alcohol vapors with high accuracy, making it suitable for breathalyzers and similar applications.
• Multi-Gas Detection: Capable of detecting other gases such as carbon monoxide and ammonia, providing versatile utility in various environments.
• Wide Detection Range: Measures alcohol vapor concentrations from 10 to 1,000 ppm (parts per million).
• Analog Output: Provides an analog voltage output that is proportional to the gas concentration, facilitating easy integration with microcontrollers, Arduino, Raspberry Pi, and other electronic systems.
• Fast Response Time: Rapidly detects the presence of alcohol and other gases, enabling timely alerts and responses.
• Durable and Reliable: Designed for long-term use with consistent performance over time, ensuring reliable operation in various conditions.
• Easy to Integrate: Features a 4-pin interface, making it straightforward to connect and use in a wide range of electronic projects and applications.

Specifications:

• Gas Detected: Alcohol vapors, carbon monoxide, ammonia
• Detection Range: 10 to 1,000 ppm
• Operating Voltage: 5V DC
• Output Type: Analog (0-5V)
• Response Time: ≤10 seconds
• Preheat Time: ≥24 hours for optimal performance
• Operating Temperature: -20°C to +50°C
• Dimensions: 32mm x 22mm x 27mm (approx.)

Applications:

• Breath Alcohol Detection: Essential for breathalyzers and personal alcohol testing devices, ensuring accurate measurement of alcohol levels.
• Air Quality Monitoring: Monitors alcohol vapor and other gases in the environment, useful in various safety and industrial settings.
• Safety Systems: Integrates into safety systems to detect harmful gas concentrations and provide alerts in critical situations.
• DIY Projects: Ideal for hobbyists and engineers working on gas detection systems, air quality monitors, and smart home automation.

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