SEN25 MQ-8 Hydrogen Gas Sensor

This is a simple-to-use hydrogen gas sensor, suitable for sensing hydrogen concentrations in the air. The mq-8 can detect hydrogen gas concentrations anywhere from 100-10000ppm. This sensor has a high sensitivity and fast response time. The sensor's output is an analog resistance. The drive circuit is very simple, all you need to do is power the heater coil with 5v, add a load resistance and connect the output to an adc. This sensor comes in a package similar to our mq-3 alcohol sensor and can be used with the breakout board. Features: High sensitivity to lpg, iso-butane, propane. Small sensitivity to alcohol, smoke. Detection range: 100 - 10, 000 ppm iso-butane propane. Fast response time: <10s>