The ZMD-DD-SAN4 is a 4 channel security DVR is a fully integrated, real time and hardware-based digital video recorder. With video/audio input/output, motion detection, 3G live view, network access, PTZ camera control and USB2.0 backup, this 4CH security DVR is perfect for the home or small business.
This DVR provides you with real-time D1 resolution, the highest resolution available to DVRs! At 120 FPS (30 FPS Per Channel), recorded video will appear smooth and fluid. D1 gives you 4-times the image size, detail and clarity of conventional CIF quality. Its larger image and added detail makes it easier for you to identify people and objects.