The MEL-3520-DD direct drive lock is reliable, easy to fit and has a full VdS Class II certificate.

The lock with Basic software (MEL-3520-DD) has a Master code, a User code and Time Delay, all programmed from the keypad.
The lock with MLS software (MEL-3550-DD) has a Master code and 9 User codes, dual control, time delay and a simple 100-transaction audit trail (no time and date). A Dallas key entry is also available.

The lock has a standard footprint and can be mounted in any direction, or reversed for a left-handed installation.
The cable from the keypad is run down a slot in the U-shaped spindle and through the back of the lock, so making installation much simpler and virtually eliminating any possibility of the cable snagging.

The Alpha 1 keypad (KP-A1-2030) has raised keys, an external battery box and either a black or chrome rim. Available in either metal or ABS.
The Delta keypad (KP-DL-2030) has a low profile and requires a separate battery box. It comes with a black or chrome rim.

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