To answer the challenge of security and life safety in today’s classroom environment, Marks USA custom lockset division has developed the “survivor series” classroom intruder function leverset with clutch design. The new Life Safety Classroom Intruder Lockset by Marks USA is designed to be locked or unlocked from the exterior, always open on the interior, but allows a teacher or administrator to secure the classroom without stepping into the hallway to lock the outside handle.

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