Armored door Dierre SINGLE with ten locking points and innovative cash lock Lock Trap System or secret lock with special protection against breakage of the cartridge – Lock Blocking System. Lock Trap System – additional mechanical lock in the lock, does not allow its manipulation with a dowel. When trying to break in, „Lock Trap“ locks the lock and prevents the door from unlocking. After removing the used burglary tool, it is enough to turn the key in the lock and the lock will unlock. Dierre’s patented MIA cash lock system allows the lock to be recoded countless times. In case of loss or theft of a key, you can quickly and easily change the confidentiality