Description & main functions: 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.Modify zone content (chinese 70 words, english 140 letters ) 9.Send sms to 5 preset mobile phone numbers while alarming 10.Auto-dial 5 preset phone numbers while alarming and monitor the sound at site. 11.Record function: maximum recording time:1 min 12.Voice function: support play the user record voice 13.With wired mic interface and siren interface 14.Inquiry hosts status and alarm events through sms 15.Inquiry zones name and arm/disarm status through sms 16.Digital inputs are adopted cal-coupled isolators, which can prevent external high voltage from destroying internal. 17.Gsm network wireless communication for alarm, no pstn cable, not fear cable cut 18.Temper device: arming while the control panel removing or shaking. 19.Connect with alarm center through gsm network 20.With rohs/ce/fcc certifications, conform to 3c safety standard and gb12663-2001 government standard Main technical parameters , gsm frequency band:850/900/1800/1900mhz(quad band) , fixed code wireless signal frequency:315mhz/433mhz , wireless distance: 100-200m , response time�?�8s(gsm network normal) , fixed code zones:40 , working conditions: Operating temperature:-45~+60 humidity 95% no condensation , standby current :5ma , alarm current: