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Wireless Security System Overview

By: Alastair Lydeard

Have you ever watched a horror film where the villain snips the wires to a telephone or home alarm? The scariest part is realizing that, despite your home's security system, it could happen to you. In order to truly protect your home and family against the threat of break-ins, you need to invest in a wireless security system.

These wireless burglar alarms use radio waves to communicate with other components instead of using wires. The potential burglar cannot figure out how to cut wires to disable the system, so gives up.

The two main types of wireless burglar alarms are unmonitored and monitored. If an intruder is detected, unmonitored systems sound a loud alarm that is audible in the home and for a short distance outside. If you live in the countryside, these systems are not ideal, because if you are not at home, neighbors may not be able to hear the alarm, so no one will know about the break in. Monitored services, on the other hand, detect a break-in and then send a signal to security company staff, who determine whether it is a real burglary, and then call the police.

The control panel is the brains of all wireless security systems. It is usually found in the basement or in a closet. The control panel is where all wireless signals are sent from the various motion sensors and magnetic switches placed throughout the home. If a suspicious movement signal or entry is detected, the control panel sounds an alarm, or phones the security company's monitoring service.

Throughout the home, inconspicuous magnetic contacts and switches are attached to doors and windows. These consist of two parts: a magnet on the door or window, and a switch placed on the door jam or window sill. They simply detect movement by noting an increase in the distance between the switch and the magnet, which only occurs if a door or window is opened or forced open. The switch sends a wireless signal to the control panel, which sets off the alarm.

Large open spaces such as hallways can be equipped with wireless body sensors or motion detectors. Infrared motion or body heat changes are detected and a signal is sent to the main control panel. The panel gauges whether the movement is a person, and then sounds the alarm or alerts the monitoring station staff.

Each wireless security system includes a keypad, which homeowners use to turn the system on or off. Normally, keypads are installed beside the main entry door, so that it is convenient to arm the alarm when leaving, or to deactivate it when returning home. Some systems also include remote devices, similar to a car alarm, which can operate several features. Homeowners can also switch lights on or off from a distance using the remote controller, to give the illusion that the home is occupied.

Some wireless security systems also come with cameras, which can be all mounted or hidden. The cameras connect to a control panel and a recording device, such as a VCR. If an intruder is detected, the cameras record the home scene automatically. Some packages also include camera monitoring by security staff at the alarm system company.

There is no doubt that any home security system can offer a certain degree of protection for your property, or even your life. However, for the highest level of protection, a wireless security system is your best choice.

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Author Alastair Lydeard is a columnist for various well-known online ezines, on family vacation and diesel truck part issues.
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