High Security Key Control is a good way to control who has keys to your place of business.
ASSA provides a full line of mortise cylinders designed to retrofit into most leading lock manufacturers' locksets and exit devices including Sargent, Arrow, Schlage, Yale, Corbin-Russwin, Best, and Von Duprin. Mortise cylinders are offered in lengths ranging from 1-1/8" to 2" and BHMA finishes 625, 626, 605, 606, 612, and 624. ASSA mortise and rim cylinders are available in removable core for quick and easy rekeying capabilities.
ASSA Cliq
Dorma SKC Registered Key System: Serialized Key Control
Encore Key System: Interchangeable core used between locking systems: mortise & rim housings, knob locks, lever locks, padlocks, and deadlocks.
Master Key Systems can give you convenience to enter any door or building with one key. Available in all key ways including restricted and high security.