Seeed Studio Studio Grove MQ3 Alcohol Gas Sensor Module - Analog Output
The Seeed Studio Studio Grove MQ3 is an electrochemical alcohol gas sensor module designed for easy integration with Arduino, Raspberry Pi, and other 3.3V/5V microcontroller platforms via its analog output interface. It provides a reliable solution for detecting alcohol vapor, LPG, benzene, and other combustible gases.
Features
- Electrochemical MQ3 sensor with high sensitivity to alcohol vapor
- Wide operating voltage range from 3.3V to 5V DC
- Analog voltage output for direct ADC connection
- On-board potentiometer for sensitivity adjustment
- Pre-wired with a 50cm Grove cable for plug-and-play connectivity
Out of stock
The Grove MQ3 module utilizes a metal-oxide-semiconductor (MOS) electrochemical sensing element. When exposed to target gases like alcohol, the sensor’s conductivity changes proportionally to the gas concentration, which is then converted into an analog voltage signal. This signal can be read directly by a microcontroller’s ADC pin for threshold detection or trend monitoring.
Designed for stability and a long operational life, the module includes a simple conditioning circuit and a potentiometer for calibrating the sensor’s response threshold. It is important to note that the output provides a relative indication of gas presence and trend, not a precise PPM concentration measurement, making it ideal for qualitative detection applications.
Additional Information
| Weight | 0.012 kg |
|---|---|
| Dimensions | 4 × 2 cm |
