1.measuring change: Analog output sensor for measuring changes in H2, LPG, CH4, CO, Alcohol, Smoke or Propane
2.Simply supply power and connect the A0 pin to an analog input pin on your Arduino, ESP8266, Raspberry Pi, etc.
3.Operating voltage of 5VDC: adjustable sensitivity using the onboard potentiometer,
4.Easy to use: Easy to use on a breadboard with the included 4-pin header.
5.Module Applications:Gas may be used in homes and factories leakage monitoring device suitable for the detection of gas, butane , propane , methane , smoke , etc.GAS SENSOR CARRIER BOARD