The number of frames per second your DVR (Digital Video Recorder) is capable of handling. A real time second of video is 30 Frames. So a recorded second or video motion that doesn't skip is 30 Frames. So when looking for a good DVR system make sure you get a system that does 30fps for each camera. We have 4, 8, 16 channel DVRs do 30fps for each camera.
The Resolution of which the DVR does display and record. It is the original dimensions in pixels of the displayed or recorded video Such as 160x120, 320x240 and 640x480 and the higher is the better.
The HDD capacity of the DVR means the number of recorded previous days of video that the DVR will keep before recycling. Most CCTV systems by default record video based on motion which means if there is no motion there is no recording because practically it will be a still image rather than video. The average for a 4 camera system is between 500GB and 1 TB and the higher the more days of recorded video (motion) your DVR system keep.
Remote capability. Now our DVRs are remote view capable. Which means you can view your cameras remotely and virtually from anywhere in the world using the internet explorer, using a remote client or iPhone.
Back up and recovery compatibility. Our DVRs give you the ability to back up desired video period. Making it easy to export video to other devices for many various reasons. for example making a copy for the police or the insurance company.