... structure, high reliability;128 preset positions, 4-way cruise lines, two pattern scan head orientation, multiples camera display, ... four-time setup tasks function;EnglishOSD menu, bootautomatically with auto identifycameras function;level360-degreecontinuous rotation of220 degrees/ sec ... NTSC:768(H)×494(V)Signal system:PAL/NTSCHorizontal resolution:540TV linesBuilt-in Lens:30X, 3.3-99mmMinimum ...