Main entrance doors and apartment entrance doors are the most important interface between private living space and the world outside. They present special challenges in terms of burglar resistance, fire protection, tightness and accessibility. The GU house entrance door concept GU SECURY Automatic access controlled is based on the interaction of various harmonised components: multi-point lock, data transmission and control of the door by fingerprint scanner or code keypad. All of this is preassembled by the door fabricator at the workshop and installed as a tested unit in the house or apartment, where it is simply connected to the power supply.