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A crash bar (also known as a panic exit device, panic bar, or bump bar) [1] [2] is a type of door opening mechanism which allows users to open a door by pushing a bar. While originally conceived as a way to prevent crowd crushing in an emergency, crash bars are now used as the primary door opening mechanism in many commercial buildings.
This delay reserves time for security personnel to get to the door before the door opens. The lock will also 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.
A Knox vault in an academic building A Knox KeySecure, attached inside the cab of a fire engine, holds a high-security key [broken anchor] to open KnoxBox key boxes in the area. A Knox Box is a small, wall-mounted safe that holds building keys for fire departments, emergency medical services, and sometimes police to retrieve in emergency ...
Integration allows doors to unlock when authorized. Request to exit devices - These allow free egress through an access point without triggering an alarm. Buttons, motion detectors, and other sensors are commonly used. Alarms - Unauthorized access attempts or held/forced doors can trigger audible alarms and alerts.
Fortune Brands Innovations, Inc. (or "Fortune Brands") is an American manufacturer of home and security products, headquartered in Deerfield, Illinois.Its portfolio of businesses and brands includes Moen and the House of Rohl; outdoor living and security products from Therma-Tru, Larson, Fiberon, Master Lock and SentrySafe; and MasterBrand Cabinets.
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