1.Can connect external industrial camera, this system with own SMS,MMS, Email functions 2.8 wired zones,open/closed alarm mode is optional by self-programming 3.Fixed code: 40 wireless zones,315/433MHz(optional) 4.Digital inputs are adopted optical-coupled isolators, which can prevent external high voltage from destroying internal components. 5.Send SMS automatically to report the state of digital input when it returns normal status. 6.Wireless keyboard for setting phone No. 7.Arm/disarm remotely through GSM SMS. 8.Send SMS and auto-dial to 5 preset mobile phone numbers while alarming and monitor the sound at site. 9.Record function: Maximum recording time:1 min 10.Voice function: support play the user record voice 11.With wired Mic interface and siren interface 12.Inquiry host’s status /alarm events/zones’name and arm/disarm status through SMS 13.Digital inputs are adopted cal-coupled isolators,which can prevent external high voltage from destroying internal. 14.GSM network wireless communication for alarm,no PSTN cable,not fear cable cut 15.Connect with alarm center through GSM network -