FES Sensor Technology Hydrogen-Sensor H2-CNI I2C

H2-CNI I2C is a calorimetric hydrogen sensor with a catalytically highly active and siloxane-resistant sensor element and is based on a non-isothermal calorimetric operation principle. It contains a digital temperature sensor and an EEPROM for an advanced control of sensor characteristics in a wide temperature range of -40 to +90°C.


  • Detection of hydrogen levels up to 100% LEL with 0.25 % resolution in air
  • No sensitivity against typical catalyst poisons such as volatile siloxanes and carbon monoxide
  • Fast response and recovery times
  • No humidity-induced base line drift
  • Applicable in relative humidity (rh) between 0 % to 100 %
  • Industrial temperature range from -40 °C to +90 °C
  • Linear output up to 100 % LEL
  • On-board digital temperature sensor and EEPROM with I2C®bus connectivity

Documents & downloads

Specification Sheet H2-CNI I2C Rev. 1.0


Christian Kallen
Christian Kallen
Account Manager
cka@alders.de +49 2152 8955-230