personal alert system
DetectorsBut more importantly, it is not the alarms but how they
are triggered. For burglar alarms, homeowners can also
ask their contractors to wire their house in such a way that when the wires are tripped or cut in any way, the alarm will go off. However, it is more typical to see motion detectors now since technology has improved alarm systems. These motion detectors act much like wires but they use infrared beams instead of wires. Once these beams are crossed or disturbed in any way by some object, the alarms will go off. Motion detectors are not to be used in a house that is full of pets.