Fast response gas sensor

MQ-4 gas sensor has high sensitity to Methane, also to Propane and Butane. The sensor could be used to detect different combustible gas, especially Methane, it is with low cost and suitable for different application.Model No.: MQ-4Sensor Type: SemiconductorStandard Encapsulation: Bakelite (Black Bakelite)Detection Gas: Natural gas/ MethaneConcentration: 300-10000ppm(Natural gas / Methane)Circuit Loop Voltage: Vc ≤24V DCHeater Voltage: VH 5.0V±0.2V ACorDCLoad Resistance: RL