Emergency unlocking device for door, has code keypad at outer fitting of entrance door, for actuating code lock, mechanically or electronically, which operates in latch that is opened after opening code

摘要

The emergency unlocking device has a code keypad at the outer fitting of an entrance door, for actuating a code lock, mechanically or electronically, which operates in the latch. The latch is opened after opening the code electronically or with an additional lever or slide.