The HB-13 series has aluminum construction, built-in fan and heater. With horizontal 360-degree unlimited continuous rotation, maximum pan speed is 360 degrees per second. Manual control speed can be adjusted from 0.5 degrees to 250 degrees. It features a low-noise design, OSD function, 128 preset positions, 60-second self-study and multi-protocol communication. Communication serial bit rate is adjustable. It has a simple finger switch inside the dome. It supports RS485 serial control. Address of dome device is from 1 to 255. High speed is for wide-angle, low speed for long-distance. It boasts built-in surge and lightning strike protective equipment and built-in four alarm inputs and two outputs .