... 3" colour Sony CCD 4ch dvr kit home security system, 1/3" colour Sony CCD1. H ... mouse, backup, burning, upgrading5. The operation system is similar to WINDOWS, which has powerful ... DNS, DDNS, NTP, EMAIL, IP permissions, IP searches, Alarm Center, etc.) and a full Matching (WEB, Client, ... this.DVR Specification Video Compression H.264Video System NTSC / PALOperation System Linux Input / Output VideoBNC: 4 ...