DFRobot Gravity Analog CH4 Gas Sensor MQ4 for Arduino - Module Only
The DFRobot Gravity Analog CH4 Gas Sensor (MQ4) is a 5V-compatible module designed for detecting methane (CH4) and natural gas concentrations. It provides a simple analog voltage output for easy integration with Arduino, Raspberry Pi, and other microcontroller platforms.
Features
- High sensitivity to methane (CH4) and natural gas (LNG)
- 5V DC power supply with simple analog voltage output interface
- Compact Gravity-series form factor for plug-and-play wiring
- Onboard potentiometer for sensitivity adjustment and calibration
- Stable long-life performance with fast response time
Out of stock
The MQ4 sensor utilizes a tin dioxide (SnO2) semiconductor sensing element. When exposed to combustible gases like methane, the sensor’s conductivity increases proportionally to the gas concentration. This change is converted into an analog voltage signal by the onboard signal conditioning circuit.
Designed for integration into gas leak detection systems, this module operates on a simple 5V DC supply and outputs a 0-5V analog signal. The included potentiometer allows for threshold calibration to minimize cross-sensitivity to common interferents like alcohol and smoke. Its compact form factor and standardized Gravity 3-pin connector make it ideal for prototyping and educational applications.
Additional Information
| Weight | 0.004 kg |
|---|---|
| Dimensions | 4 × 2 cm |
