Surface-mounted device for KNX 4-channel annual time switch 6144/40. LED reception display. A 2-core shielded cable (max. 200 m) can be used for connection. Up to 10 time switches can be connected in parallel to this antenna. Time and date are automatically read into the time switch. Summer time changeover via the DCF telegram. Easy installation, housing can be rotated in the mounting bracket. For wall mounting.