1. It wires the door to the jamming device. ···· If it is a firebreak door, it will lose its certificate. ···· The door needs to be dismantled > The whole security would be lost ···· Change of the existing lock. ···· Expensive. TESA-HOTEL is installed on standard locks previously mounted on the door – no wiring required! 2. It wires the wall to the wall reader. ···· Sometimes the wiring cannot be hidden. ···· Expensive. TESA-HOTEL includes the reader! 3. It installs and connects the control unit. ···· Sometimes the wiring cannot be hidden. TESA-HOTEL contains every electronic and jamming device… inside! 4. It connects every device. In order to install TESA-HOTEL, all you have to do is mount the electronic lock on your door.