u::Lux Switch dS AddOn motion detector and temperature and humidity measuring module. Immediately after connection, a wide range of standard functions can be operated via the u::Lux Switch dS. These can be individually configured using the digitalSTROM u::Lux Server app. The u::Lux AddOn MD+RH+TEMP is a humidity and temperature measuring module with motion detector including cover panel and fastening material. A 25cm long 4-pin cable (included in delivery) is connected directly to the lower part of the u::Lux Switch. A double frame is required for the switch set including AddOn.