The RBW3x-x-L is a room control module with LCD display. Many types with graded range of functions: displaying and setting room temperature, displaying of time and date, week-based scheduler, fan control, presence key (occupied/unoccupied). Additionally models with two, four or eight extension keys are provided which can be individually assigned (e.g. light or sunblind control). The configuration is done by an LNS® 3 compatible plug-in.