A good way to make the most of a home security system is to understand how it works. A security system is composed of several parts, which work in unison to provide surveillance around the home.

Main Panel and Keypad
The main panel and keypad contain the main circuitry which allows the system to function. The keypad is used to activate and deactivate the system, and on some models gives the user the option to do things like program alarm settings.

Sensors and Motion Detectors
A home security system includes window and door sensors that detect when the window or door is opened. The number of sensors used will be dependent on the number of windows and doors in the home that requires surveillance.

Motion detectors are positioned in corners detect any motion in a room. Motion detectors can also function directly with a security camera. Which will start recording when they sense movement.