System Overview: This alarm consists of main engine of alarm and various wireless-connected accessories. When people enter the defense region illegally the main engine will give sound of sirens and call the hosts so hosts can return home or inform neighboring relatives to cope with the instantly. Also they can monitor the sound on the spot. Features: Anti-interfere function. When someone interferes it with same frequency the control unit will activate siren to alarm. Support anti-decode with remote control 6 programmable Defense zone available with status LED. The control panel can register 99 sensors and detectors. Every defense zone can set independently arm disarm delay alarm and so on. Have the function of one-key arm. User can start Home arm or Out arm freely by keeping pressing one key on remote control to satisfy your need. Can set the reminder sound of defense zones. Will remind users of remembering arm the alarm system when going out. It stores 2 groups of monitoring center and 6 groups of user phone numbers to dial out and play the recorded message if there is an alarm. Can arm/disarm with remote control or keypad on the control panel Can arm/disarm / listen-in by calling the host phone number.(The phone numbers of control panel). Have the function of reminder for circuitry failure. For example if telephone line is cut or short the control panel will alarm. Have inbuilt backup battery and can continue to work and last for 8---10 hours when electricity is cut or in failure. With international Ademco Contact ID can work with the monitoring center Applicability Area: Applies widely to banks stores warehouses offices and home it has many kinds of protection abilities like anti-theft anti-robbery fire prevention gas leakage protection and most important emergency calls.