When used properly, a security system can be an effective tool when used in conjunction with other crime prevention measures. Entering your personal code turns the system on or off. Sirens installed inside and outside can discourage intruders and alert you and your neighbors.
Contacts detect the opening of a door or window.
Some contacts are flush-mounted, and are not visible when the door or window is closed. Sometimes, custom-made alarm screens can be used to protect windows, even when they are open. Smoke Detectors are powered by the control panel's battery. If your system is monitored, these smoke detectors can send a signal, while you are home or away, to dispatch your local fire department for help. Glass Break Detectors can provide early detection of a burglary attempt.