Burglar alarm
01
防犯アラーム, セキュリティアラームシステム
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
例
The burglar alarm went off, scaring away the intruders.
盗難警報機が作動し、侵入者を驚かせて追い払った。
02
盗難警報機, 防犯アラーム
a loud warning signal produced by a burglar alarm



























