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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.

​Arnold (/ˈɑːr.nəld/) is a market town[3][4] and unparished area[2] in the ceremonial county of Nottinghamshire in the East Midlands of England. It is situated to the north-east of Nottingham's city boundary. Arnold's town centre is the largest in the Borough of Gedling[5] and the most important in the northeastern part of the Greater Nottingham conurbation.[5] Gedling Borough Council is headquartered in Arnold.[6] Since 1968 Arnold has had a market, and the town used to have numerous factories associated with the hosiery industry. Nottinghamshire Police have been headquartered in Arnold[7] since 1979.[8] At the time of the 2011 census, Arnold had a population of 37,768.[1]

Areas within Arnold include Daybrook, Woodthorpe, Redhill, Warren Hill, Killisick and Dorket Head.

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