How Wireless Security Systems Work to Protect You
Many Hollywood films show the burglar or villain having a rather easy time of breaking into a home. They simply snip the wires leading to the home alarm system, and voila, instant entry. One of the answers to this problem is to have a system without wires — 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 central brains of a wireless security system is the control panel, which can usually be located in the basement or a closet. Here, all the wireless signal data from the various magnetic switches and motion detectors in the home is sent. If the control panel detects a suspicious movement or door or window entry, it will sound the alarm or place a phone call to the monitoring staff at the security company.
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.
If your home has large spaces such as hallways, you can equip them with a feature of the wireless security system called a body sensor, or motion detector. They use infrared motion or body heat detection to sense someone’s presence, and send a signal to the control panel. The panel will determine if the threat meets its standards and if so, will alert the monitoring station or sound the alarm.
To enter or leave your home, the wireless security system must be deactivated or activated. You simply enter the password on a keypad near the main entrance to your home, making setting the alarm easy to do. Remote control devices also come with some systems, just like car alarms, so that owners can operate some features from a distance. Some systems allow owners to switch lights off or on remotely, giving the appearance of a home that is occupied.
Some wireless security systems also have hidden or wall-mounted cameras, which connect to a video unit and recorder, such as a VCR. When movement is detected, the cameras record the scene onto the VCR. For extra fees, the cameras could also be monitored by staff of the security service.
A home security system is a good idea for protection and peace of mind. But for the highest level of security, consider a wireless system as the best choice, because of the enhanced features offered.
Alastair Lydeard on January 31st 2008 in Home