MQ4 Gas Sensor Description:
This semiconductor gas sensor detects the presence of methane (CNG) gas at concentrations from 200 ppm to 10,000 ppm, a range suitable for detecting gas leaks. When the target combustible gas exist, The sensor’s conductivity is more higher along with the gas concentration rising. The sensor’s simple analog voltage interface requires only one analog input pin from your microcontroller.
The sensor can operate at temperatures from -10 to 50°C and consumes less than 150 mA at 5 V. The sensor could be used to detect different combustible gas, especially Methane, it is with low cost and suitable for different application.
MQ4 Sensor Features:
Good sensitivity to Combustible gas in wide range
High sensitivity to Natural gas
Long life and low cost
Simple drive circuit
MQ4 Sensor Application:
Domestic gas leakage detector
Industrial Combustible gas detector
Portable gas detector
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