Electronic door cylinder MKL
The MKL security lock is complete door lock whose access authorization can be configured and administered by the user himself. I.e. a change of the individual access authorization is possible at any time. As a key it is applied an iButton. This IButton is integrated together with the battery for the lock in the MKL key, i.e. the MKL lock needs no own power supply (battery) but is supplied exclusively about the MKL keys.
The operation of the system is definitely identically of the use of a mechanical lock. So you can replace an existing mechanical lock without additional electric installation with a MKL security lock.
The programming of the system takes place about a so-called master key. The master key is an iButton with an integrated EPROM. Every Masterkey is assigned the MKL security lock indissolubly. Therefore it is guaranteed, that exclusively about this master key a change of the access authorization is possible.
Generally the MKL security lock is intended for the application in bigger lock systems..
Even with loss
of a general key no change of the separate locks is necessary. Changes of the
access authorization are possible in a short time via masterkey. 
§ Mechanical dimensions like standard door lock, completely maintenance-free
§ Beginning with 25/25 in 5 mms of steps
§ The number of codes of the MKL security key around a multiple higher than mechanical keys
§ MKL security key includes iButton and battery
§ No power supply or battery for the lock, energy comes from the key.
§ Handling like an mechanical lock
§ EPROM for up to 80 keys
§ Lifetime of the battery (2 Lithium cells) up to 40.000 closings
§ Extended EPROM for up to 160 or 320 keys
Connection of the MKL security lock to the proLock control device. Therefore all extensions of the proLock control device are usable.
Different access authorization for Inside and Outside in a MKLsecurity lock are possibly.
Administration software including a iButton PC-adapter to program and admin the keys and the masterkeys