Brief Introduction
The basic function of the DVR can be summarized as: DVS=CCTV+DVR, that is to say, when moving object appears, the camera can shoot and record automatically/ manually and keep the record in internal memory or SD card; besides, the user can watch the records on TV (monitor) or computer (install SD card reader) at any moment and also can transfer the records to computer. DVR can be widely used in house, office, supermarket, etc