AHD, TVI, CVI, HD-SDI, EX-SDI are different prevailed HD-over-coaxial technologies in today’s analog surveillance market. In this article, we want to introduce you the Hikvision DS-2CC12D9T-A, which is a HD-TVI outdoor IR bullet camera that delivers 2-megapixel HDTVI video supported wide dynamic range and auto focus function. This 2-megapixel HD-TVI camera keeps the consistent design of Hikvision bullet camera; IP66 rated weatherproof housing, ivory white color, included with sun-shield. Equipped with Infrared illuminators, bracket adopts cable conceal design, which supports 3-axis installation.