CISA 57.785.HR.A Lock. Double-system lever-cylinder

The Cisa 57.785.HR.A lock combines a reversible latch, lever, and cylinder mechanisms simultaneously. The cylinder part blocks the lever part using a special metal curtain that prevents manipulation with lock picks or a turning tool. Furthermore, the lever part is equipped with the ANTIPICKING system. This is a protection system against opening with lock picks, which prevents the lock code from being identified. During a forced break-in by pushing out the lock bolts, the protective mechanism is triggered. All levers abut a hardened pin and resist breaking-in.

Expert Review

By using this lock in our armored doors, we were convinced that it is worth attention. The combined system of the lever and cylinder parts with interlock neutralizes both intellectual and forced breaking-in methods very well. We were pleased with the blocking system. When the lock is closed on the cylinder, there is no access to the lever part. It is closed by a protective plate. Manufacturing quality is, as always, excellent. We recommend this lock for all armored doors.