Established in 1993. Hengtong Digital Co., Ltd. is a professional company engaged in CCTV products.we professionally research and develop the video card DVR, the stand alone DVR, the network video server (HTDVS), access control system, etc.Especially, we have launched the embeded DVR similar with the PC and HTDVS with harddisk. Our products are widely used in some fields such as highway, public security, finance and CIQ, and popularized oversea to many countries such as France,Russia, Hungary, Poland, Turkey, etc. We have won the reputation and trust from numerous customers and kept long and steady cooperation with them.