Butane LPG Gas Sensor

MQ-6 sensor is used in gas leakage detecting equipment in house and industry, are suitable for detecting of  iso-butane, propane, LNG, LPG. MQ-6 sensor requires 5V AC or DC. Two pins are for heater coil, and other four are for fetching signals. Output of MQ6 is analog. Higher the gas concentration, higher the output voltage at signal pins.