MQ-4 Natural Gas sensor Module

MQ-4 Natural Gas sensor Module

SKU: TES00186


MQ-4 Natural Gas sensor Module

This is a simple-to-use compressed natural gas (CNG)sensor, suitable for sensing natural gas concentrations in the air. The MQ-4 can detect natural gas concentrations anywhere from 200 to 10000ppm.It has high sensitivity and fast response time. 

  • The sensor’s output is an analog resistance. The drive circuit is very simple; all you need to do is power the heater coil with 5V, add a load resistance, and connect the output to an ADC.
  • The sensitive material of the MQ-4 gas sensor is SnO2 which has lower conductivity in clean air, in the presence on CNG, the conductivity of the sensor rises proportionally with the amount of CNG. 
  • The Sensitive material of MQ-4 gas sensor is SnO2, which with lower conductivity in clean air. When the target combustible gas exist, the sensor’s conductivity is more higher along with the gas concentration rising.MQ-4 gas sensor has high sensitivity to Methane, also to Propane and Butane.
  • The sensor could be used to detect different combustible gas, especially Methane, it is with low cost and suitable for different application.

Package Includes:

  • 1 x MQ4 Gas Sensor Module

MQ4 gas Sensor Modules Specifications


Model  MQ4 Gas Sensor Module 
IC Chip LM393
Operating Voltage  3 ~ 5V (DC) 
Detecting Range 300ppm to 10000ppm
Dimensions  3.1 x 1.9 x 2.1 cms
Weight  5 grams