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.
Bedfordshire (/ˈbɛdfərdʃɪər, -ʃər/; abbreviated Beds) is a ceremonial and historic county in the East of England. It is bordered by Northamptonshire to the north, Cambridgeshire to the north-east, Hertfordshire to the south and the south-east, and Buckinghamshire to the west. The largest settlement is Luton which had a population of 225,262 in 2021.
The county has an area of 1,235 km2 (477 sq mi) and a population of 704,736 as of the 2021 census. Bedford is the county town. Market towns include Leighton Buzzard, Dunstable, and Biggleswade. Much of the county is rural. Bedfordshire consists of the unitary authority areas of the Borough of Bedford, Central Bedfordshire and Borough of Luton.
The county's highest point is 243 m (797 ft) on Dunstable Downs in the Chilterns.