Methane Gas Sensor

Product ID: 1289 MQ-4 Sensor Description: Sensitive material MQ-4 gas sensor is used to clean the air in the lower conductivity of tin dioxide (SnO2). When there is the environment in which the combustible gas sensor, conductivity sensor with increasing concentration of combustible gases in air increases. MQ-4 gas sensor of high sensitivity for methane, propane, butane and has a good sensitivity. This sensor can detect a variety of combustible gases, especially natural gas, is a low-cost sensor for a variety of applications. Electrical properties: Input voltage : DC5V Power consumption ( current ): 150mA DO output : TTL digital 0 and 1 ( 0.1 and 5V) AO output :0.1-0 .3 V ( relative to pollution ) , the maximum concentration of a voltage of about 4V Special note: After the sensor is powered , needs to warm up around 20S, measured data was stable , heat sensor is a normal phenomenon , because the internal heating wire , if hot is not normal .