We use the GSM module, send the alarm information rapidly to the user or manage center by cell phone, message or PSTN. 16 wireless defense areas, 2 wire defense areas, wireless detector automatic partner with the system host. The system host has keyboard to program, LCD to display. Power supply can automatic switch between AC and DC. The system can store 7 groups alarm numbers, cell phone numbers or BP call numbers. The system is preemptive when call the center, send the information in time. 20 seconds alarm voice record, it can be replay, the record will not be lost even if Power-down. The system can be alarm by message, remote controller, remote by PSTN under protection of password, timing setup armed/disarmed. You can choose the mode of armed with host at home or armed without host at home, you can listen in by phone to know the locale case. The system has the standard interface of detector, also has the interface of wire emergency touch, line out of the althorn. You can choose mute or alarm by the horn. Many kinds of wire or wireless detector can be equipped to the system, for example: infrared fence, smog detector, gas detector, glass crash detector, emergency touch, shake detector. The system is suitable to ADB2000 alarm center.