Constant Speed Dome IP Camera, Indoor MPEG-4, SONY 1/4" CCD, 420TVL,D/N, remote control zooming and PTZ through internet, 0?15?s horizontal shift, 0?356?pan movement, 90簐ertical rotation, Auto continuous rotation, 64 preset positions, 7" (9") dome, 0篊~40篊 operating temperature. With night vision function, its picture is colorful in the daytime and black in the nigh