Classroom Lock -ND70PD

The outside lever is locked or unlocked by key. When unlocked the lockset works as a passage set. When the lock is locked, you must use a key from outside to unlock the lockset. The inside lever is always unlocked

Entrance Lock -ND53PD  Most popular function

Turn/push button locking; Pushing and turning button locks outside lever, requiring use of a key until button is manually unlocked.

Push-button locking; Pushing button locks outside lever until unlocked by key or by turning inside lever.

Storeroom Lock -ND80PD

Outside lever is fixed, entrance by key only. Every time the door closes this unit will lock, it cannot be left unlocked. The inside lever is always unlocked