09/14/2010 Motion detectors are a very important part of a home or business
alarm security system. Among motion detectors there are several
different types available and one of the most common are the Passive
Infrared Motion Detectors.
Passive Infrared Motion Detectors or PIR detectors use "passive
infrared" technology. The device is mounted on a wall or somewhere in
the corner of a room. continues to It sends invisible beams out into the
covered area in the form of layers. The top most layer goes the
furthest and averages almost 60 feet straight ahead and 35 feet on the
sides.
The center layer of beams spreads the area around mid way and the
bottom layer sweeps the room nearest to the detector. These beams
independanty measure the infrared temperature of anythind on which they
land on and continuously look for a clash of temperature against that
point.
For example if a beam lands on your table and knows what temperature
it is, when anything else or a person comes in front of the couch its
temperature is different and causes a violation so the alarm is
triggered. These motion detectors are very hard to compromise.
Passive motion detectors have a microchip in them that will adjust
the device for slow and methodical temperature changes. This way as your
room warms up and cools down during an armed alarm period, you will not
get a false alarm.
Some motion detectors are designed to be mounted in the ceiling and
spread a 360-degree cone downward. Some are recessed to replicate an
electric outlet and various other combinations are available for the
James Bond like clients. Most often the device is an aesthetically
pleasing small device that is mounted 5-7 feet high in the corner of a
room.
But obviously these motion detectors cannot protect every inch of
your home or business unless you use many of them to cover all the area.
So you should place them carefully and intelligently to secure the
sensitive area.
Visit our website for more: http://www.elementsecurity.com.au
With ever rising crime rates, securing your home or business from theft, burglary or vandalism has never been more important. It gives you peace of mind at times when your premises are unattended. Element Security is an owner operated business servicing the Illawara , Sydney, Southcoast, So…
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