KNX push button sensor 3 basic 1-way system 55, with commissioning rockerFeatures: Installation on bus coupler 3. Dismantling protection through screwing. Rocker function: switching, dimming, blinds, 1-byte value transmitter and scene extension. White operating LED. Two red status LEDs per control surface. Label field illumination for rocker sets with label field. Function of the label field illumination and the status LED can be parameterized.Notes: Professional labeling via the Gira labeling service www.beschriftung.gira.de. The push button sensor is supplied with a program-neutral commissioning rocker. The matching rocker set for the switch range must be ordered separately.