I did not know you had a burglar alarm, else I would have rung it.
The burglars walked in one night and carried off the burglar alarm!
With the safe in this room I looked upon them as a burglar alarm.
But who would think of putting a burglar alarm on an air-duct?
I'll have a burglar alarm put in at once and a telephone, too.
We will set the burglar alarm wires, which I have neglected for some time, as I fancied everything would be secure here.
True, the burglar alarm had given notice of the presence of the men, but Tom and Ned had not acted quite quickly enough.
It was at this point that her mind would awake like a burglar alarm suddenly set off.
"Now I guess they see what use the burglar alarm is," Tom found a chance to whisper to Harry.
It must have been about midnight when they were both awakened by hearing the burglar alarm go off.