The MQ8 sensor is a simple hydrogen gas sensor, convenient for detecting hydrogen concentrations in the air. Thus, the MQ8 sensor can detect hydrogen gas concentrations anywhere in the range from 100 to 10000ppm. Because of its low cost, and it is suitable for air quality monitoring applications
When there is hydrogen gas exists in the surroundings, the conductivity of the sensor gets higher when the concentration of the gas rises. One can convert the change of conductivity to the output signal of gas concentration with the help of a simple circuit using a microcontroller.
Features
High sensitivity to Hydrogen (H2) Small sensitivity to alcohol, LPG, cooking fumes Stable and long life
Specifications
Operating Voltage: 5V DC Detects H2 Gas concentration in air Resistant to LPG, smoke, alcohol Heater power consumption: < 800mW Can detect H2 gas in the concentration range of 100 to 1000ppm