INTELLIKEY© provides electronic key and replacement cylinder systems.
As the name suggests, this is an Intelligent lock system, with reprogrammable
keys and cylinders that can be easily fitted to existing doors.

Controlled Access is assured when using the INTELLIKEY© system. The key
automatically knows when it's being inserted into the wrong lock and the user
has the option of automatically disabling unauthorized keys in high security
areas.  If you find yourself re-keying frequently, than this is your answer
to the high costs of re-keying.  To re-key the INTELLIKEY© system, you 
simply insert a re-programmed key into the lock. No need to replace any hardware
and each key and controller can be re-programmed, over and over !