munication protocol and address code displayed on nixietube for convenient setup 2.Separate fan for camera, stable and reliable outdoor running 3.Self-check after power on, current information displayed on screen 4.System can delete preset position compatibly 5.High ABS plastic construction 6. 5 inches transparent dome shield for clear image 7.Ingenious inner module, separate circuit design, smooth rotation 8.Built-in multi-cruising tracks, preset position NO. displayed on screen when cruising 9.Returning to original position when resting 10.Memory protection when power off 11.Rotation speed changed according to zoom rate 12.Control stick priority 13.Preset position alarm ( with GH-AP44) 14.Quick assemble and disassemble, plug connection, two design for video connection 15.Pan range: 360?continuous 16.Pan speed: 0.5?300?s 17.Tilt range: 0?90? 18.Tilt speed: 0.5?120?s 19.Preset position: 128 20.Scan mode: two points scan/360?continuous scan, on/off 21.Cruising track: two, on/off munication mode: RS485 23.Power supply: AC24V/50Hz, 12W (DC 12V) 24.Working temperature: 0- +50 25.Weight: about 1.4kg 26.Dimension: 140 (D) X217mm (H) 27.Support LG, Sony, Hitachi,CNB camera