KNX Push Button Smart 55 4 gang, with colour display, Black matt. Version with 4 Push-buttons. Suitable for 55 mm switch ranges e.g. MDT assortment 55, GIRA Standard 55, E2, E22, Event, Esprit, BERKER S1, B3, B7, JUNG A 500, A PLUS, A CREATION, AS 500, A 550, A FLOW or MERTEN 1M, M-Smart, M-Plan, M-Pure. Active colour display for function and status indication. Selectable background colour and brightness of the display (white or black). Display brightness adjustable over brightness- and day/night object. Display of inside-/outside temperature and time of day. Multitouch-function, sends up to 4 values on the same or different objects. Innovative group control with long/extra long button press. Singular and double Push-button operation for switching, dimming, shutters, values. Adjustable symbols and texts for each button/function. Short/Long button press with 2 objects. Installation in an installation box using the included installation frame. Recommended installation height: 1.05 … 1.20 m. Integrated Bus coupler. No additional power supply required. 3 year warranty.