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Wired or wireless security alarms can be designed to warn intrusions through windows, using sensors like glass break detectors and contact magnetic sensors [5] [6] Security lighting (including those systems with automatic light switch and timers) is useful to make evident an attempt of unauthorized access [7]
Roll shutters on windows. Security roller shutters in a dead mall. A roller shutter, security shutter, coiling door, roller door or sectional overhead door is a specialized type of door or window shutter consisting of multiple horizontal slats, bars, or web systems interconnected through hinges. The mechanism involves lifting the door to open ...
A muntin (US), muntin bar, glazing bar (UK), or sash bar is a strip of wood or metal separating and holding panes of glass in a window. [1] Muntins can be found in doors, windows, and furniture, typically in Western styles of architecture. Muntins divide a single window sash or casement into a grid system of small panes of glass, called "lights ...
Interior shutters are typically divided into narrow units hinged accordion-style so that two or more units cover each side of a window opening when closed. Operable louvered shutters have louvers (or louvres in British usage), or slats, controlled by a tilt bar or rod to adjust the louver position and keep them in a uniform position, to control ...
Security lighting to prevent intrusions may be counter-productive. Turning off lights halved the number of thefts and burglary in Övertorneå Sweden. [2] [3] A test in West Sussex UK showed that adding all-night lighting in some areas made people there feel safer, although crime rates increased 55% in those areas compared to control areas and to the county as a whole.
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 ...