Security Alarm System Motion Detectors




Article by: Matthew Francis

Passive Infrared Motion Detectors- These detectors are also known as PIR detectors. The technology they utilize is "passive infrared"Âť. The device is mounted on a wall , Security Systems or in the corner of a room. , Keep Your Family Safe from Home and Holiday Fire Hazards It sends invisible fingers out into the covered area in several layers. The top layer goes the furthest and averages about 60 feet straight ahead and 35 feet on the sides.

The center layer of beams spreads the area about mid way and the bottom layer sweeps the room , Tips To Avoid Carjacking closest to the detector. These beams individually measure the infrared temperature , Wireless Home Security Systems of what ever they land on and look for a clash of temperature , 5 Basic Steps to Safeguard Your Home and Property against that point. For example if a beam lands on your couch and knows what temperature , Alarm Systems & Automobile Tires? it is, when you walk in front of the couch your temperature , Hurricane Evacuation is different and causes a violation. You would be hard pressed to match the temperature , A Trap Set by Law - Beware not to Fall into it! of everything in your home , Turn Your Into A Fortress as you walk about and that makes motion detectors hard to compromise.

Passive motion detectors have a microchip in them that will adjust the device for slow and methodical temperature , How Not To Be A Crime Victim changes. This way as your room , Turn Your Home Into A Fortress warms up and cools down during an armed alarm , Texas Governor Wants Webcam Images Fed Live period, you will not get a false alarm. , Is a Dummy Home Security Camera Economical?

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 , Tips To Avoid Carjacking 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. , Phone Taps That Allow You to Listen to Both Ends of the Conversation

Passive infrared motion detectors will not see through walls , Tips To Avoid Carjacking or windows , Where Does Safety & Security Begin? Security Expert Explains as they will consider touching one of them as their final destination and begin calculating the temperature. , Keeping Your Emergency Information Secure and Available The beams project forward only and will not bend around corners. If your device is placed where a beam can go into an area with an opened door, , Magnetic Locks it will protect the interior , Where Does Safety & Security Begin? Security Expert Explains of that area as well. Once the door , The Necessity of Spy Electronics is closed the beam will terminate on that door. , Body Worn Cameras You’d Never Guess

Motion detectors are not going to protect every square inch of your home , Turn Your Into A Fortress or business unless you invest in many of them to accomplish that. Instead you should intelligently place , Home Security Alarm - Have Peace of Mind them as an interior , Fire Alarms Save You From Disasters trap in an area or areas most likely to be violated by the creep or creeps that want to take your belongings or worst off violate you personally. Usually one placed properly on the main floor , Alarm System: Contacts (Window & Door Switches) and one on the lower level if you have one, will serve as good traps. Stairways are often a good thing to consider when placing the device, due to the fact that you will prevent unauthorized passage from one floor , Phone Taps That Allow You to Listen to Both Ends of the Conversation to the next.

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An alarm , Safety Alert! - All the Predators Come Out After Dark installer should always place , Security Systems a device where it will best serve the user and achieve the most coverage. Many an installer has elected to forgo this concept so that they can install the device in an area that is easier to get to with the wires. Insist on discussing all placement options with your installer before they place , Estate and Mega-Yacht Security Systems and Safe Rooms each motion detector. You can bet that your interests will be prioritized when they see your involvement in the decision process.

Dual Technology PIR- Dual means two technologies are used in one device. Both technologies must be violated to cause an alarm. , The Necessity of Spy Electronics These devices are used in harsh environments , Home Security Systems - Best Way To Keep Your House Safe such as a garage , Home Security: How To Deal With Bogus Callers or sun- room. , Alarm Systems & Automobile Tires? The first technology is passive infrared and works as explained above. The second technology is most often Doppler and looks for the invisible movement of air. , Home Security Advice If you walk into a room , Home Security - The Role of Hidden Cameras the air , Handling Weather Emergencies: Part 1 - Forward Planning Makes The Difference has to move as your body mass pushes it along. The reason you would want a dual technology device is clear when you apply common sense to the desired area of protection. For example let's say you pull your car in to a cool garage, , Body Worn Cameras You’d Never Guess go in the house , Home Security, Car Security, and Personal Security Basics and turn the alarm , Body Worn Cameras You’d Never Guess on for the night. Your motion detector that you put in your garage , Handling Weather Emergencies: Part 1 - Forward Planning Makes The Difference will see a dramatic temperature , The Necessity of Spy Electronics change as the heat , Security Systems from your engine radiates into the cool air. , Safe And Sound, Wherever You Are If you had a duel technology motion detector it would not see the air , Disaster Planning is Essential for Your Family and Your Business moving because your car is still, so it will refuse to go into an alarm , Body Worn Cameras You’d Never Guess condition.

Pet Immune Motion detector- This is a wonderful advancement in motion detection that may work for you if your pet free- roams your house , Turn Your Home Into A Fortress while you are away and have your motion detectors on. Before the introduction of this technology the pet owner had to either confine their pets from the protected area or bypass the motion detector rendering it useless unless the pet was out of the home , Security - The Role of Hidden Cameras with them. The technology is the same as the regular passive infrared detectors. On the pet immune version there are two sets of beams that are offset from each other. Your pet must hit two pre- assigned beams simultaneously in order to violate the detector. Pets under a certain amount of weight (up to 85 pounds) are not long enough to hit both beams so it does not see them. A human torso is designed much differently as per a weight to length ratio causing them to violate either a horizontal or vertical pair of beams, depending on their favorite burglarizing posture.

On the pet immune detectors the middle and lower span of beams are pet immune but the top layer is not, due to the distance of separation between the farthest-reaching beams. Care must be taken on the placement of these devices restricting the high beams from stairways and high ledges your cat may get up on. (6-7 feet high) A good technician will mask only the beams that hit these trouble spots expanding your coverage options.

Remember that even though your device is technically restricted for use by weight of your pet, two or more small animals will have an opportunity to hit the two proper beams while playing with each other. I do not recommend that you use these devices with two or more pets no matter how small they are, unless one of them is rarely moving about. Also one free flying bird , Protect Your Home with Spy Camera will look like a dinosaur entered the room , Alarm Systems & Automobile Tires? if it flies close to the detector. (They have yet to design , Home Security Alarm - Have Peace of Mind the "Dinosaur Immune Detector"Âť)

If your pets do not fall , Home Security System Considerations for Your New Home into the allowances for using a pet immune motion detector then you should consider other options for creating interior , Home Security Systems - Best Way To Keep Your House Safe traps. The well- designed system protects your perimeter as well as possible and creates interior , Wireless Home Security Systems traps in case the perimeter is circumvented.
EzineArticles Expert Author Matthew Francis
Matthew Francis Alarms@expertsknow.com

22 year veteran of the alarm , How Not To Be A Crime Victim industry
Installer, salesman, licensed alarm , Where Does Safety & Security Begin? Security Expert Explains company owner, monitoring station designer, , How Jimmy Got His Stolen Property Replaced promotions and marketing director with one of the worlds largest security , Home , Car Security, and Personal Security Basics dealers. He now works as a consumer advocate, teaching consumers how to , The Necessity of Spy Electronics buy or get systems for free (without being taken). He is committed to being unbiased. His web , Keep Your Family Safe from Home and Holiday Fire Hazards site is http://www.expertsknow.com

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