Photoelectric in sulated RS485 controlling mode,strong anti-jamming and long-distance trasmission (Max 1.5km) Control up to 128 units, each unit can be set 1-255 addresses Variable speed orperation can be applied to the built-in Pan/tilt of camera Easy to set and run the preset positions and tour group Easy to set the left and right limiting positions and run the scan between them. Home (default) position can be set up, activated and closed by the controller. LCD display, as man-machine interface, LCD display board is more intuitionist, convenient, each to understand, plentiful information. Communication: RS-485 Protocol: Pelco-D, Pelco-P Baud Rate: 1200 / 2400 / 4800 / 9600 / 19200 Communication Distance: 1500M (4900ft) twisted-pair control functionup,down,left,right,zoom in,zoom out Max controllable Cameras: 128 units Camera ID from: 1 - 255 Ambient Temperature: -10°C ~ 60°C Relative Humidity: 90% RH Power Supply Adaptor Input: 100 - 240V AC Output: DC 12V, 200mA Plug Type: US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the United States, the Philippines and so on. Plug Type :EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Colour:Black Material:plastic Voltage: 110-220V Package Contents: 1 x Keyboard Controller 1 x Power Supply Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!