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Intruder Alarm
A security alarm is a system designed to detect intrusions, such as unauthorized entry, into a building or other areas, such as a home or school. Security alarms protect against burglary (theft) or property damage, as well as against intruders. Examples include personal systems, neighborhood security alerts, car alarms, and prison alarms.
Some alarm systems serve a single purpose of burglary protection; combination systems provide fire and intrusion protection. Intrusion-alarm systems are combined with closed-circuit television surveillance (CCTV) systems to record intruders' activities and interface to access control systems for electrically locked doors. There are many types of security systems. Homeowners typically have small, self-contained noisemakers. These devices can also be complicated, multirole systems with computer monitoring and control. It may even include a two-way voice which allows communication between the panel and monitoring station.
South London is the informally defined southern part of London, England, south of the River Thames, which broadly consists of the boroughs of Bexley, Bromley, Croydon, Greenwich, Kingston, Lambeth, Lewisham, Merton, Richmond, Southwark, Sutton, and Wandsworth.
South of London in 1800. The border between Surrey and Kent is shown running south from Deptford, through Sydenham
South London originally emerged from Southwark,[1] first recorded as Suthriganaweorc,[2][3] meaning 'fort of the men of Surrey'.[2][3] From Southwark, London then extended further down into northern Surrey and western Kent.
