By Robert Goldsmith
An alarm system is a great way to provide extra protection for your home. There are
plenty of options available for you to ensure your home¡¯s safety. So don¡¯t take
chances. Protect your family with a home security system that will safeguard your
most precious valuables, and the people you love.
What are they?
Motion detectors spot the movement in areas covered by the security sensors. Motion
detectors transmit high frequency radio wave signals. They give a warning that
someone is entering into your home.
Different kinds of motion detectors & how they work:
Infrared Sensors:
Motion detectors use infrared light to detect heat changes, i.e. when a person moves
across this light it detects them with the help of the infrared sensors. If a person
moves in the range of the motion sensors, the alarm is activated. Infrared sensors are
cheaper than microwave sensors and ultrasonic sensors. Infrared sensors are generally
smaller and very reliable.
Vibration Sensors:
It detects a person through vibration. Many car alarms have this feature to alert the
owner that something has bumped into their car.
Photoelectric Sensors:
Some motion detection systems use lasers and photoelectric beams. The laser is shot
across to the other side of the room or doorway. If the laser is interrupted the unit's
alarm signal is activated.
Ultrasonic sensors :
They use a frequency around 30kHz. The transmitter bounces the waves of walls,
furniture, windows and ceilings and when the room has stabilized, the alarm is armed.
Acoustic Sensors:
They can detect the energy produced by any kind of sound, including breaking glass.
In the case of breaking glass from window intrusions, the pattern of the sound
emitted is detected.
Article Source: www.ArticlesBase.com
Robert is a Freelance Writer For StopThatBurglar.com. They Specialize In All Kinds of Burglar Alarm. No Matter What Kind Of Security You Are Looking For Whether It Be A Basic Home Burglar Alarm, Or A State Of The Art Burglar Alarm System You Can Find More Information Here.
