New version design High Die-cast Aluminum Construction Low noise design OSD function 128 presets position 16cruising tracks, each cruising track has 8preset positions Guard Tour/8 groups Multi-protocol communication RS485 data communication AC24V input Content:  1/4"SONY Super HAD CCD,480tvline 0.7Lux(Color). 570tvline 0.002Lux(B\W) 18Optical zoom,12Digital zoom, f=4.1-73.8mm  360 Degree Continuously, Control Speed: 0.1~360/s, Preset Speed:0.1-420/s 128 presets, Character Title/128 title,Guard Tour/8 groups,Auto Tracking Group/16 groups, Muti-language OSD menu configuration with built-in Muti protocols support.  Power:AC24V, Power consumption:17W,Communication:RS-485