burglar alarm

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burglar alarm

[′bər·glər ə¦lärm]
(engineering)
An alarm in which interruption of electric current to a relay, caused, for example, by the breaking of a metallic tape placed at an entrance to a building, deenergizes the relay and causes the relay contacts to operate the alarm indicator. Also known as intrusion alarm.
References in periodicals archive ?
Nothing was taken as it appears the intruders were disturbed by the house alarm, but the owners were still left with the distress and inconvenience of having to clear up broken glass and making their home secure again.
We think the fire was started by one of the spotlights in the bathroom and luckily it tripped the house alarm and all our smoke alarms.
WORCESTER - The police chief, one of his deputies and the chief's brother chased down a breaking and entering suspect yesterday morning after the trio heard a house alarm go off while on Acton Street.
The bungling burglar entered through an insecure window while the family living there were asleep upstairs but triggered the house alarm and fled.
They are now asking people to register their house alarm with the county council.
Although Blanco told them the house alarm was not working, the robbers chose not to enter the house.
The general electrotechnical installation, A safety lighting system and a fire alarm system as a house alarm system are to be built.
Resident Sian Patrick said: "We were woken at just before 7am by beeps from our house alarm and realised the electricity had gone off.
He said Garda Olivia Hawkes was on patrol in the area when she heard an external house alarm.
Battery operated alarms may act as a deterrent but if you have a house alarm, you could have it upgraded to include your shed or garage.
Alarms I usually have a sketchy memory, but I can recall in vivid detail every single time I've been woken up by a smoke or house alarm and for each one I can feel a frown line or grey hair waiting under my baby soft skin to come forth in later life.