MQ5 Methane LPG Liquid Propane Gas Sensor Module


MQ-5 Methane LPG Liquid Propane Gas Sensor Module are widely used in gas leakage detecting equipment in family and industry are suitable for detecting of LPG, natural gas, town gas, avoid the noise of alcohol and cooking fumes and cigarette smoke The MQ5 ( MQ-5 ) is used in gas leakage detecting equipment in consumer and industry applications, this sensor is suitable for detecting LPG, natural gas, coal gas. Avoid the noise of alcohol, cooking fumes, and cigarette smoke. The sensitivity can be adjusted by the potentiometer. The sensitive material of the MQ-5 gas sensor is SnO2, which with lower conductivity in clean air. When the target combustible gas exists, The sensor’s conductivity is higher along with the gas concentration rising. Please use a simple electro circuit, Convert the change of conductivity to correspond output signal of gas concentration


  • Simple Drive Circuit
  • Highly Sensitive to LPG, Natural Gas
  • Small Sensitivity to Alcohol, Smoke
  • Fast Response
  • Stable and Long life


Pin NamePin Description
VccUsed to power the sensor, Generally, the operating voltage is +5V.
GroundUsed to connect the module to the system ground.
Digital OutYou can also use this sensor to get digital output from this pin, by setting a threshold value using the potentiometer.
Analog OutThis pin outputs 0-5V analog voltage based on the intensity of the gas.


The Power Supply Needs5V
Interface typeAnalog
Pin Definition1-Output 2-GND 3-VCC
Simple Drive Circuit and Heater Voltage5.0V


  • Natural gas leak detection: The MQ5 Methane Gas Sensor is commonly used for detecting methane gas leaks in residential, commercial, or industrial settings. It provides an early warning system for potential gas leaks, helping to prevent accidents or hazards.
  • Gas monitoring in kitchens: The module can be installed in kitchens or cooking areas that use natural gas or methane as a fuel source. It can detect gas leaks and trigger alarms or shut off gas supplies when methane levels exceed safe thresholds, ensuring kitchen safety.
  • Industrial safety: The MQ5 sensor module is employed in industrial environments to monitor methane gas levels. It can be integrated into safety systems that protect workers from exposure to methane gas in factories, refineries, or chemical plants.


Download the Datasheet of MQ5 Methane Gas Sensor from the link given below.