HIKVISIION DS-2DE4225IW-DE(S6) 4" 2MP 25X Powered by DarkFighter IR Network Speed Dome with bracketsHikvision DS 2DE4225IW DE(S6) 2MP 25 Network IR Speed Dome adopts 1 2. 8" progressive scan CMOS chip. With the 25 optical zoom lens, the camera offers more details over expansive areas. This series of cameras can be widely used for wide ranges of high definition, such as the rivers, roads, railways, airports, squares, parks, scenic spots, and venues, etc 1 2. 8" progressive scan CMOS High quality imaging with 2 MP resolution Excellent low light