MQ-3 Alcohol detector sensor Module for Ethanol and Breath Analyze
The Grove - Gas Sensor(MQ3) module is useful for gas leakage detection (in home and industry). It is suitable for detecting Alcohol, Benzine, CH4, Hexane, LPG, CO. Due to its high sensitivity and fast response time, measurements can be taken as soon as possible. The MQ-3 Gas Sensor Module is a high-sensitivity alcohol vapor sensor that detects the presence of ethanol, benzine, and alcohol fumes. It outputs both analog and digital signals, making it ideal for Arduino, ESP32, Raspberry Pi, and other microcontroller platforms for breathalyzer, driver safety, and air quality projects.
₹ 130
₹ 199
| : | |
| Made In : | India |
The MQ-3 Alcohol Sensor Module is specifically designed to detect ethanol (alcohol) vapors in the air, making it ideal for breath analysis and alcohol detection systems. It offers high sensitivity to alcohol while minimizing interference from other gases. With both analog and digital outputs, the MQ-3 module can be easily interfaced with Arduino, ESP32, and other microcontrollers for real-time monitoring and alert systems.
Key Features
- High sensitivity to alcohol (ethanol) vapors
- Suitable for breath alcohol detection
- Dual output: Analog (A0) and Digital (D0)
- Adjustable sensitivity via onboard potentiometer
- Fast response and recovery time
- Onboard comparator (LM393) for digital output
- LED indicators for power and detection
- Easy integration with Arduino and IoT platforms
Technical Specifications
| Parameter | Specification |
|---|---|
| Sensor Type | MQ-3 Gas Sensor |
| Detectable Gas | Alcohol (Ethanol) |
| Operating Voltage | 5V DC |
| Output Type | Analog + Digital |
| Preheat Time | ~20 seconds (recommended longer for stability) |
| Sensitivity | Adjustable |
| Interface | 4-pin (VCC, GND, A0, D0) |
| Comparator IC | LM393 |
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