This lockset uses a roller catch to hold the door closed when unlocked and is keyed on both sides. It features a highly ligature-resistant handle that is typically used in areas where manual dexterity is not a concern. The handle and lockset are mounted separately on a radius-cut plate. In the event of a barricade, the staff key can quickly override the internal turn/pull.
The lockset also has four emergency override methods to overcome determined barricades.
This lockset is tested to Level A4 TS001 Grade.