The room wireless transmitter EE245 is based on the IEEE 802.15.4 protocol with a transmission frequency of 2.4 GHz and measures up to three physical quantities: relative humidity, temperature and CO2.

The measurement values can be shown locally on the optional display. EE245 ca be powered either by batteries or by an external power supply. Depending on the physical cuantities measured, the sampling and transmission rate, the battery life may last up to 3 years.