The installation needs a new exclusive key. …. Unless it is a copy of an existing key, it might be IMPOSSIBLE to manufacture an exclusive key for a new user with limited combinations. TESA-HOTEL accepts 65,000 users per installation. …. And not only that ¬– users are forced to carry several sets of keys. With TESA-HOTEL, users only need one single card compatible with other equipments such as vending… …. The mounting only depends on the supplier’s manufacturing time. With TESA-HOTEL you can do it yourself.