Vaisala HMP240 Humidity Transducer

For PEM Fuel Cell Reactant Gas Humidity Measurements Relative humidity, dewpoint, and reactant gas temperature become trivial measurements with Vaisala's heated humidity transducer. Operate at 100% RH in pressurized reactant gas streams, suitable for hydrogen, reformate blends, oxygen, and air. Use the humidity sensor as a near-real time analysis of the state of hydration in your PEM fuel cell. Humidity sensor accuracy does not degrade should water happen to form and evaporate from the sensor.