The Gira Pushbutton Sensor 3 Basis, 2-gang (5112 00) provides a two-gang wall control interface for KNX room automation. When commissioned in ETS, its operating surfaces can be assigned supported functions such as switching, dimming, blind control, value transmission and scene extension. This allows the same sensor family to serve different room-control requirements across residential and commercial projects. The device communicates through KNX TP and requires a compatible Gira Bus Coupler 3. Status indicators and an illuminated label field support operation and identification. Published dimensions refer to the sensor cover only, excluding the bus coupler, fastening brackets and design frame. Check the official application and accessory requirements before specifying.