burglar alarm
Plural
burglar alarms
1
an electronic security device that, when activated, emits a loud noise to deter and alert about unauthorized entry into a house, building, or other premises
A burglar alarm is a security system designed to detect unauthorized entry into a building and alert the occupants or authorities. It typically consists of sensors placed on doors, windows, and other entry points, along with a control panel that triggers an alarm when the sensors detect movement or forced entry. Some burglar alarms are connected to a monitoring service, which can contact the police or security personnel if the alarm goes off. These systems help protect homes and businesses from theft or break-ins by providing an early warning and deterring potential intruders.
- The burglar alarm went off, scaring away the intruders.
- She installed a new burglar alarm to enhance the security of her home.
- The loud noise of the burglar alarm alerted the neighbors to the attempted break-in.
- The burglar alarm system is designed to protect the building from unauthorized entry.
- He activated the burglar alarm before leaving the house for the weekend.
2
a loud warning signal produced by a burglar alarm