Gravity: Analog CH4 Gas Sensor (MQ4)

SKU: SEN0129

The MQ4 Gas Detection Sensor is designed for identifying gas leaks in both consumer and industrial markets, specifically targeting methane (CH4), natural gas, and LNG. Its sensitivity can be precisely adjusted using a potentiometer, making it adaptable for various applications while avoiding false readings from alcohol, cooking fumes, and cigarette smoke.

Angled shot of the back of Arduino MQ4 gas sensor module with gold connectors and CH4 gas detection.-DFRobot product sku:SEN0129 image.

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  • Specification

    Parameter Details
    Power supply needs 5V
    Interface type Analog
    Size 40x20mm

    Pinout

    Num Label Description
    1 Output Signal Output
    2 5V Power
    3 GND GND

    Analog Sensor Pin Definition

    FAQ

    • What is the analog output range of the sensor?

      It does, but it is not recommended to work in a high humidity environment for a long time

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