intruder alarm
Burglar detection system
An intruder alarm is a security system designed to detect unauthorized entry into a building or area.
Sensors on doors, windows, or motion detectors trigger an audible alarm or alert to a monitoring service when activated: The intruder alarm went off when someone tried the back door.
Also called a burglar alarm.
- burglarOne who breaks in
- sirenWailing alert device
- sensorInput-detecting device
- motion sensorDevice detecting nearby activity
- motionChange in position
security · security system · breach · alert · trespasser · wail · detector · night vision · panic · break-in · break and enter · home invasion · triggered · armed · disarmed · keypad · entry · perimeter
- alert soundsbeep, buzzer, chime, doorbell, ringtone
- sensorsbiosensors, temperature sensor, pressure sensors, heat sensor, ammeter
security function
intruder alarmwelcome mat
Rug at the entrance
open door policy · lock · deadbolt · security door · barricade
intruder, alarm, intrude, intrudes, intruded, intruding, intrusion, intrusions, intrusive