Die-cast high strength alloy,metal construction in housing. Built in fan and heater.

 Built-in decoder consists of multiple communications protocols,baud rate and multiple brands camera protocols . Coordinate displayed function.
 Horizontal 360°unlimited continous rotation and rotation rate can achieve 250°per second.
 Provide 128 preset postions .4 groups program visitatorial tracks.2 groups scanning tracks
 Built-in surge and lighting strike protective equipment.Memory information at power-off.
 RS485 serial control ,address of dome device is 511.