MQ4 High Sensitivity Gas Methane CNG Detector Sensor Module is a simple to use MQ-4 High Sensitivity Gas Methane (CNG) Detector Sensor Module which can sense the presence of Compressed Natural Gas(CNG), methane(CH4), etc in the air. The module uses our MQ-4 sensor. It simplifies the interface to the odd pin spacing of the sensor and provides the interface through standard 4 x 0.1″ header pins. It provides an analog output corresponding to the concentration of the gases in the air and an easy to use digital output. The onboard potentiometer can be used to set the maximum gas concentration beyond which the digital output gets triggered. Just power the module with 5V set the threshold and you can start getting the gas concentration of the air around the sensor! An onboard LED signals the presence of any gas.

The digital output can be easily interfaced to microcontrollers and other circuits. The analog output can be hooked up to an ADC of a microcontroller to get a wide range of sensor reading.This is a simple-to-use compressed natural gas (CNG) sensor, suitable for sensing natural gas (composed of mostly Methane [CH4]) concentrations in the air. The MQ-4 can detect natural gas concentrations anywhere from 200 to 10000ppm.

Package Includes:

1 x MQ4 High Sensitivity Gas Methane (CNG) Detector Sensor Module

Specifications and Features:

  1. Model NO.: MQ-4 sensor
  2. Chipset: LM393
  3. Working voltage: DC 3~5V
  4. Detecting range: 300~10000ppm
  5. Signal output indicator
  6. Dual Signals output (analog output and TTL output)
  7. TTL output signal is low level, allows to connect with SCM directly
  8. Analog output 0~5V voltage
  9. High sensitivity
  10. Long working lifetime and stable performance
  11. Quick response and recovery

Attachments and Links:

MQ4 Datasheet:

Package includes:

1 x MQ4 High Sensitivity Gas Methane CNG Detector Sensor Module

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Additional information

Weight 0.1 kg


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