• ID: mq8
• Name: MQ8 Flammable (Hydrogen) Gas Sensor
• Category: gaseous
• Manufacturer: dfrobot
• Connection: analog
• Link: https://www.dfrobot.com/wiki/index.php/Hydrogen_Gas_Sensor(MQ8)_(SKU:SEN0133)

The MQ8 Gas Sensor module is useful for detecting Hydrogen gas concentrations in the air. It has a detection range of 100-10000 ppm.
For optimum use, it requires calibration after a pre-heat time of at least 24 hours. See the datasheet for details.