Description of MQ6 Gas Sensor Module Butane LPG Gas Sensing They are used in gas leakage detecting equipments in family and industry, are suitable for detecting ofLPG, iso-butane, propane, LNG, avoid the noise of alcohol and cooking fumes and cigarette smoke. Applications: The domestic gas leakage detector Industrial Combustible gas detector Portable gas detector Features: Good sensitivity to Combustible gas in a wide range High sensitivity to Propane, Butane, and LPG Long life and low cost Simple drive circuit An indication of the signal output Dual signal output (analog output, and TTL level output) The TTL output signal is low. (When low output signal light, and can be connected directly to the microcontroller) 0 ~ 5V analog output voltage, the higher the concentration, the higher the voltage. High sensitivity to hydrogen. Can be resistant to ethanol steam, LPG (petroleum), smoke interference. Has a long life and reliable stability. Fast response and recovery characteristics.