This is a very easy to use low cost semiconductor Gas sensor Module with analog and digital output. This module uses MQ4 Methane gas sensor as a gas sensing element. It requires no external components just plug in Vcc & ground pins and you are ready to go.For Digital output the threshold value can be easily set by an on-board potentiometer. Using this module you can easily interface MQ-4 Methane (CNG) gas Sensor to any Microcontroller, Arduino or even Raspberry Pi.Since this Gas Sensor module is sensitive to Methane it is also small sensitivity to alcohol & smoke. Wiring Connection: VCC: positive power supply (5V) GND: power supply is negative DO: TTL switching signal output AO: analog signal output Applications: Suitable for home or factory methane gas , natural gas and other monitoring devices to test natural gas, methane 300 to 10000ppm Features: Good sensitivity to Combustible gas in a wide range High sensitivity to CH4, Natural gas Small sensitivity to alcohol and smoke On brad potentiometer to set maximum gas concentration beyond which the digital output get triggered Fast response, stable, and long life Simple drive circuit Easy to interface with any controllers Specifications: Model MQ-4 IC Chip LM393 Operating Voltage DC 3V to 5V Detecting Range 300ppm to 10000ppm Length 31mm Width 19mm Height 21mm Weight 6 gm Package Includes : 1 x MQ-4 Methane CNG Gas Sensor Module. *Product Images are shown for illustrative purposes only and may differ from actual product.
