Traditionally code changing on mechanical locks has required the lock to be removed from the door, the CL600 launch is the first mechanical lock where on door code changes can be made in seconds! The locks can be used as the primary lock on most doors, particularly in high traffic situations. The CL600 lock range has varying functions available. The locks allow for various ways of managing entry by code, by key and by Code Free operation of the lever handle on the CL605, CL615 and CL625 models. Throwing the deadbolt of the CL620 and CL625 lock models will lock out the code users when appropriate. A safety feature ensures that the inside lever handle will retract the deadbolt so avoiding accidentally locking a person in the room. The key can be used to retract the latchbolt and so may be issued for cleaning and security staff use.