With its proven construction and high-quality workmanship, the additional door lock increases security against break-ins. You can fix it on the closing side of entrance doors opening inwards: the hinge on the frame or the wall, the cylindrical part on the door. You can open it from the outside with a secure profile key and open and close it comfortably from the inside with a rotary knob, so you don’t have to search for the key in an emergency. The solid door lock is easy to install and, thanks to its double-turn latch, it protects the door against burglary from the closing side.
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