MQ2 Gas Sensor is useful for gas leakage detecting(in home and industry). It can detect LPG, i-butane, methane, alcohol, Hydrogen,

This is a very easy to use low cost semiconductor Gas sensor Module with analog and digital output. This module

MQ4 GAS Sensor is suitable for sensing natural gas, Methane (CH4). MQ4 gas sensor is composed of micro AL2O3 ceramic

This is a very easy to use low cost semiconductor Gas sensor Module with analog and digital output. This module

The MQ-6 LPG – Isobutane – Propane Gas Sensor is a semiconductor gas sensor that detects the presence of LPG,

This is a very easy to use low cost semiconductor Gas sensor Module with analog and digital output. This module

MQ8 gas sensor is suitable for sensing Hydrogen Gas which with lower conductivity in clean air. When hydrogen gas exists,

This sensor module has an MQ-8 as the sensor component and has a protection resistor and an adjustable resistor on-board.