Various means or devices designed to guard persons and property against a broad range of hazards, including crime, fire, accidents, espionage, sabotage, subversion, and attack.
(Closed-Circuit Television) A TV system in which signals are not publicly distributed but are monitored, primarily for surveillance and security purposes. CCTV relies on strategic placement of cameras, and observation of the camera's input on monitors.
The use of one or more computers to control basic home functions and features automatically and sometimes remotely.
A system of electronic devices and equipment working together to detect and alert people through visual and audio appliances when smoke or fire is present.
The selective restriction of access to a place or other resource.
A collection of individual communications networks, transmission systems, relay stations, tributary stations, and data terminal equipment (DTE) usually capable of interconnection and interpretation to form an integrated whole.
Integrated equipment for producing amplified sound.
An electronically operated system by which patients or personnel can summon a nurse from a bedside station or from a duty station.
A movable barrier, usually on hinges, opening and closing in a fence, wall, or other enclosure. They can be controlled electronically and integrated with Security Systems.