Greisinger ebht 2r humidity temperature module greisinger ebht 2r p the greisinger ebht 2r is a humidity temperature module used for long term monitoring indoor climate monitoring and monitoring of storage rooms p p the easybus sensor module ebht 2r measures the temperature and relative humidity in air or non corrosive non ionizing gases p p humidity and temperature are measured by a capacitive polymer humidity sensor and a pt1000 sensor the measuring values and min max values ca