MQ-8 Hydrogen H2 Gas Sensor Module

Hydrogen Gas Sensor MQ8 for measuring the concentration of Hydrogen (H2) in the air. Suitable for measuring concentrations from 100 to 10,000 ppm. Easy to implement heater drive and measuring circuit. This sensor is designed for long life and stable output.

 

Sensitive material of MQ-8 gas sensor is SnO2, which with lower conductivity in clean air. When hydrogen gas exists, the sensor’s conductivity gets higher along with the gas concentration rising. Users can convert the change of conductivity to correspond output

signal of gas concentration through a simple circuit. MQ-8 gas sensor has high sensitivity to hydrogen gas, also has anti-interference to other gases. This sensor can detect hydrogen, especially city gas. It is a kind of low-cost sensor for kinds of applications.

 

 

Sensitivity                High

Detection Range      100-10,000 ppm

Heater voltage         5V

Diameter                 18mm

Pins                        6mm High

 

It is widely used in domestic gas leakage alarm, industrial flammable gas alarm and portable gas detector.