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.
Redditch is a town, and local government district in north-east Worcestershire, England, approximately 15 miles (24 km) south of Birmingham. The district has a population of 85,000 as of 2019. In the 19th century it became the international centre for the needle and fishing tackle industry. At one point 90% of the world's needles were manufactured in the town and its neighbourhoods. In the 1960s it became a model for modern new town planning.