Electric strike, the video is normally closed type - the door opens after the power supply. When there isn't any Power, doors stay closed.
Electric strike is used common in inside building entry and intercom building system, such as office door, room door work with knob or level lock, as the cheap cost and easy installation and multiple function option.
Furthermore, it’s also a great choice for security system upgrade, only need replacing small case of mechanical lock by electric strike, then this door can be monitored by system, opened by electric pushbutton/access control keypad and still keep mechanical open for backup in case of emergency.
More info, please contact Toplock Industry Co., Ltd
Email: sales02@top-lock.com
