An entry set where the deadbolt locks by a key on the outside and a turn piece on the inside of the lock. Latch is operated on the outside by a thumb piece and on the interior by a knob or lever.

An entry set where the deadbolt locks by a key on both the outside and inside of the lock. Latch is operated on the outside by a thumb piece and on the interior by a knob or lever. **Double Cylinder locks on doors used for exiting a building or a home are a life safety hazard in times of emergency and are not recommended**

Dummy Mortise Handlesets are used in double door applications. The Dummy Mortise Handleset is mounted to the inactive door while the single or double cylinder Mortise Handleset is mounted to the active door. Dummy Sets perform no function.