The Components of a Home Security System

Control Panel

• The control panel is the brain of the home-security system. It should have a continuous source of power. While it’s possible to set the control panel in a convenient location, many home-security companies recommend installing it in the back of a closet or in the garage to make it less likely a criminal can easily access it and shut off the entire system. The control panel connects to other security-system components via a telephone landline. Some control panels have special features, such as those that turn lights on and off at specified times to create a crime deterrent.

Touchpads

• Access to the control panel can be done from a number of locations throughout the house via strategically placed electronic keypads. Situated just inside an entryway, the keypad allows for easy activation and deactivation of the security system. Additional keypads in the master bedroom and other locations allow the owner to signal the alarm company if an intruder is in the house. The keypads may be wireless, or may require wiring into the house's electrical system.

Motion Detectors

• Motion detectors are a common component of most home security systems. Using passive infrared technology, the motion detectors sound an alarm whenever anyone passes by them. Typical installation for motion detectors is near doors and windows. Similar to motion detectors are glass-break sensors that sound an alarm when a window breaks. Along with alarms set off by motion detectors, strobe lights can also serve as a deterrent to anyone trying to enter the home illegally.

Cameras

• Not all home-security systems provide cameras, but they are an increasingly popular option. Wired and wireless versions are available. Some cameras have infrared vision capabilities. There are even inexpensive “fake” cameras designed to make would-be intruders think they were on camera.