Individual room control, silent, 400W. Solid-state relay not potential-free. Standby loss only 0.8 watts. Encrypted radio, bidirectional radio and repeater function can be switched on. For built-in installation. 45mm long, 45mm wide, 33mm deep. For a load < 1W, a GLE must be connected in parallel to the load. This heating-cooling relay evaluates the information from radio temperature controllers or sensors. Possibly supplemented by window-door contacts, motion detectors, window handle sensor FFG7B-rw and radio buttons. Encrypted sensors can be taught in from production week 11/14. Bidirectional radio and/or a repeater function can be switched on. Every function change (normal operation, setback operation, off) is confirmed with a radio telegram. This radio telegram can be taught in the GFVS software. Upper rotary switch for the operating modes. The LED accompanies the learning process in accordance with the operating instructions and indicates radio control commands during operation by flashing briefly.