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.
Farnborough is a town in northeast Hampshire, England, part of the borough of Rushmoor and the Farnborough/Aldershot Built-up Area. Farnborough was founded in Saxon times and is mentioned in the Domesday Book of 1086. The name is formed from Ferneberga which means "fern hill". According to the UK-wide 2011 Census, the population of Farnborough is 57,486.
The town is probably best known for its association with aviation, with the Farnborough Airshow, Farnborough Airport, Royal Aircraft Establishment, and the Air Accidents Investigation Branch.