Security-systems Londonderry

A security system is any system which put measure in place for the protection of people, property , devices or software. Security systems can range from home security systems, to CCTV security systems and web security systems providing physical security and computer security Home security often involves burglar alarms as well as fire alarm systems and intruder alarm systems, and devices which guard against accidents, espionage or attack. An electronic security system provides access systems such s card readers and electronic door access systems for entry into a room or building.