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A master key system enables various persons with different access authorizations to open all relevant doors with only one key.
Your advantages:
- Security with only a few keys.
- Comfort, since there is only one key for all relevant doors.
- Organization is simplyfied.
- You can exactly determine, which persons have access for which rooms.
- All cylinder locks and types (main entrance, internal doors, garage doors, ...) can be opened with one key.
Example: Grand Master Key System for an office building used by two companies.
GMK:
General Master Key opens all doors (e.g. for security guard).
MK 1:
Master Key 1 opens all doors for Messrs. Smith (e.g. for Director Smith).
SMK 1:
Submaster Key 1 opens the main entrance and all adjoining rooms (lavatory, kitchen, store room, ...)
SMK 2:
Submaster Key 2 opens main entrance, adjoining rooms and all secretary doors (e.g. key for secretary of director Smith).
MK 2:
Master Key 2 opens all doors for Messrs. Berger.
2 SMK 1:
This submaster opens only the doors of the purchasing and sales area, the main entrance and adjoining doors (e.g. key for all commercial clerks).
2 SMK 2:
This submaster opens main entrance, adjoining rooms and secretary doors (key for secretary of Messrs. Berger.
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