The weather unit WZ/S is used to detect and process weather data from the weather sensor. The weather sensor is providing data for twilight, brightness in 3 directions, rain, temperature, information on day/night, wind speed, date and time. 4 value memory stands for order, per value memory can 24 values be stored. The weather unit can only be used with the weather sensor WES/A. An integrated power supply is supplying the voltage for the weather sensor. The device can be operated with a suppy voltage of 115 to 230 V, 50/60 Hz.