With keyboard, In-built battery, voice module, wireless receiver module; CONTACT.ID、ADEMCO4+2 communicating agreement; 3 alarm ways: alarm center, telephone number, warning sign; 5 guarding ways: left guarding, perimeter guarding, single guarding area guarding, delay guarding and remote guarding; 4 kinds of off guarding way: code keyboard off guarding, wireless remote control off guarding, remote off guarding and accept call off guarding; 2 group of 6 numbers of user code, 6 numbers can be modified by users; There could be 4 groups of police calling number(cellar or mobile), one group of center police calling number; recorder, monitor, remote control, guard area control, telephone line checking and its relative parameter, they could be set by the system keyboard; 220VDC power，can connect with monitor, 12V7AH battery，can be with 4 keyboards at most.