A master key is a very special type of key in the field of locking technology. It allows its holder to open all or many different cylinders within the same locking system.

These specially manufactured master keys are often issued to property managers of residential complexes, caretakers, or security personnel responsible for protecting a building. A master key—also known as a main key within a locking system—grants access to all or most rooms that are fitted with cylinders belonging to that system.

If a master key is lost, for example for the locking system of an apartment building, kindergarten, or school, the resulting damage can be significant. For this reason, it is advisable to arrange a spare key in advance and consider liability insurance that covers the often costly loss of a master key.

By the way, Amper Ausfperrdienst also stocks key blanks from a wide range of brands and manufacturers. Duplicate keys, new cylinders, or complete locking systems—all available from a single source at Amper Ausfperrdienst!