KNX Shutter Push-button Smart 55 4 gang, with colour display, Black matt. Version with 4 Push-buttons and an integrated time switch. 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. Display brightness adjustable over brightness- and day/night object. Display of height, slats and wind-/rain-/frost alarm. Up/down Push-button for manual operation. Innovative group control with long/extra long button press. Time switch with 8 switching times, power reserve. Daily-/weekly-/astro switch function. Automatic bank holiday calculation. Switching times adjustable over the ETS and Push-buttons. Control of height and slats via the time switch. Manual activation of the time switch and automatic sun shading. Output object for Date and Time (Master). Date and time adjustable over the KNX Bus (Slave). 8 logic blocks each with 4 inputs. No additional power supply required. Integrated Bus coupler. 3 year warranty.