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the more reflective the surface is
Low profile 3
Rated at 200V
Shutdown input with pullup and LED-follows-shutdown circuitry
SparkFun Hydrogen Gas Sensor - MQ-8 Biometrics Replacement Parts the more reflective the surfaceThis 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 sensors 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
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