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Gravity: Analog CH4 Gas Sensor (MQ4) - module with a methane sensor

Module with an analog MQ4 methane sensor. It is powered with the voltage of 5 V and has an analog output. DFRobot SEN0129

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ID: 581624

7,35€ gross (23% VAT)
5,97€ net

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Module with an analog MQ4 methane sensor. Methane (CH4) is a gas that is colorless and odorless. The mixture of methane and air in a volume concentration of 4.5–15% is explosive. The formation of this mixture as a result of methane entering closed rooms (e.g. in hard coal mines) may cause an explosion. Due to its properties, methane is difficult to detect without a specialized device. Using the module with the MQ4 sensor, it is possible to build a detector that will detect CH4 in our environment. The module is powered with 5 V and has an analog output (Gravity connector) proportional to the measured concentration. The sensor is characterized by high sensitivity adjustable with a potentiometer and can measure the concentration of methane in the range from 200 to 10,000 ppm. The Wiki page contains the manual and sample programs.


  • Measurement range: from 200 to 10000 ppm
  • Analog interface
  • Quick reaction
  • Adjustable sensitivity by potentiometer
  • Stable performance
  • Simple connection via the Gravity connector
  • Power supply: 5V
  • Size: 40 x 20mm