In order to get a total security we can install on the leaf of OKEY security doors an alarm module with a built-in siren. It is equipped with two sensors: a seismic one
sensitive to vibrations, and a magnetic one against undesired openings of the door. The alarm is activated through a numerical code typed on the keypad, or through a remote control. A powerful siren starts working a few seconds after the opening, if you don’t deactivate the system. It is battery-powered.