... alarm, 3g alarm, alarm, alarm system, wireless alarm,home 4ch or 8ch dvr alarm system,Campus network video alarm system,camera alarm ... control, 1 wireless siren, 1 wireless door, built-in high volume siren.2 CMS follow-me numbers, Contact ID protocol ... .Multi-level user authority, ensure system securitySupport PAL, keep high resolution image anytimeRemote programming, start-up and software upgrade via ...