please see following what our alarm system can do for you: ( except SN2800) 1. Completely compatible with Ademco Contact ID 2.LCD display everything you want to know 3. as many as 85 Event Log, with all the information about arming, disarming, and alarming with time stamp 4.Auto dial preset numbers 5.Remote access by phone 6.Listen in 7.Speak 8.Timed auto-arming/disarming 9.main fall alarm and alarm priority 10.All our products have got CE certificate and so on and on... Besides, as all the programs of the alarm systems are designed and manufactureed by ourselves, so it is very easy for us to make any change specially for you. We can also provide customized service, e.g. change the display English language to your local language. OEM/ODM service is most welcome!!! If you are interested in, please do not hesitate let us know. Our website is: /en/ we are looking forward to hearing from you. Thanks and Best regards Miss Sober If you have msn or skype, please add me as below: MSN: Skype: soan-sober