A security alarm is a system designed to detect intrusion – unauthorized entry – into a building or area. Security alarms are used in residential, commercial, industrial, and military properties for protection against burglary (theft) or property damage, as well as personal protection against intruders.
Some alarm systems serve a single purpose of burglary protection; combination systems provide both fire and intrusion protection.
Some Types of Security Alarm systems :
1. Burglar Alarm – A burglar alarm is a wall-mounted object that can be bought in buy mode to automatically alert the police that a burglar is on the property. It has turned out to be standard gear in stores and different organizations, and they're turning out to be progressively normal in private homes also.
2. Fire Alarm – A fire alarm system is number of devices working together to detect and alert people through visual and audio appliances when smoke/fire is present. These alarms may be activated from smoke detectors, and heat detectors.
3. Car Alarm – A car alarm is an electronic device installed in a vehicle in an attempt to discourage theft of the vehicle itself, its contents, or both. Car alarm work by discharging high-volume sound (more often than not a siren, klaxon, pre-recorded verbal cautioning, the vehicle's own particular horn, or a mix thereof) when the conditions vital for activating are met, and also by blazing a portion of the vehicle's lights, and (alternatively) telling the auto's proprietor through a paging framework and hindering different electrical circuits vital for the auto to begin.