Complete Camera Packages based on New and Revolutionary HD TVI Technology. Capable of recording in 720p and 1080p Resolution, Real Time Video on All Channels. HD TVI System with 1080p Resolution can record in more than quadruple the resolution of a CCTV system with 700TVL Cameras, 720p HD TVI System records with resolution of more than triple the resolution of a CCTV system with 700TVL Cameras. To make it even more convinient, every HD TVI DVR will also support standard analog cameras 700TVL and less. You can mix and match HD TVI cameras with older analog cameras on one HD TVI DVR. See our demo of one of the first HD TVI systems deployed in United States.