Master Key systems are based on several
access levels and are tailored to fit the security needs of a
With one key, business owners can open every lock in their
office, including deadbolts, mortise locks, doors, padlocks and
even electronic access control systems, while employees' keys
will only open particular locks — for example, their office
The top level key (perhaps the business owner's key) is often
referred to as the Grand Master Key and is able to open all the
doors of a business security system. The Master Key can open
groups of doors designated by the business owner, and the bottom
level usually opens only one door.
Medeco® has pioneered extremely large Master Key systems through
our exclusive use of angled cuts on our keys, and slider
combination. With millions of combinations, Medeco can
accommodate even the largest installations.
This graphic shows a master key
system with three levels of keying.