Modul 1000 series consists of interchangeable cylinders for 1000 possible different key changes, which are arranged in turn in intervals of 200 codes managed by a master key. The series is also divided in 2 blocks, from 1 to 600 and from 601 to 1000, managed by 2 General master keys, ideal in case of large installations.

The cylinders can be installed directly in the locks of Modul 1000 series or inside one of the available knobs, which are installed in turn in the locks. 

Every BMB lock is supplied together with a rosette. In case of special needs, additional rosettes with different shapes and sizes are available.