Intended for opening of any version of Promix-SM203 or Promix-SM213 electromechanical lock using a key from outside or revolving handle from inside. The mechanism is a separate device that enables to open Promix-SM203 or Promix-SM213 lock mechanically even if it is broken down! It is mounted on door panel with thickness of 40?mm instead of strike plate from lock delivery set. It is applied when lock is installed in door frame.