Beijing Fengtai monitor, monitor installation Fengtai Fengtai monitoring company, Hikvision level distributors, Fengtai monitoring project to undertake, monitor maintenance, weak wiring, computer room construction, video conferencing. Products DS-7900N-E4 is a new generation of self-developed Hikvision NVR (Net Video Recoder) products, support network video access. It combines a number of patented technology, using a number of IT and high technologies, such as video and audio codec technology, embedded systems technology, storage technology, network technology and smart technology. It can work as NVR for local independent can also be networked to form a powerful security system. DS-7900N-E4 Series Network DVR can be widely applied to financial security, public security, military, telecommunications, transport, electricity, education, water and other fields.