Exit Control Designs
Many exit control locks are based on magnetic locks, which release if there is a fire alarm or power failure, but otherwise these locks hold the exit doors shut.
Exit control systems can include a "request to exit detector" such as a pushbutton that opens the exit if exit requests are enabled.
In other facilities, entrance as well as exit requires authentication such as by a card reader. If an intruder slips by the entrance controls of a building, they will be able to be detained for questioning.
Read more about this topic: Exit Control Lock
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