Pushbutton sensor 3 Basis, 2-gang for KNX pure white glossy Features: Mounting on bus coupler 3. Disassembly safeguard by screw connection. Rocker function: Switching, dimming, blind, value transmitter 1-byte, and scene auxiliary unit. Two blue status LEDs per operating surface. White operating LED. Operating LED and status LED function can be parameterised. Notes : Professional labelling with the Gira Inscription Service www.marking.gira.com.