FeatureGood sensitivity to a wide range of combustible gases,High sensitivity to Natural gas,Long life and low cost.
Supply TypeManufacturer, Exporter, Supplier
Preferred Buyer Location
All over the world
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 sensors conductivity rises proportionally with the amount of CNG.