Video monitor tester built-in Pelco-D / P PTZ control protocol,etc Through its own RS485 interface, the user can control the PTZ up, down, left, right rotation, and adjust one machine zoom, aperture size DC12V 1A output power for camera The tester support DC12V (1A) power output for camera. It is helpful for demo and testing when the power supply is not available Vedio monitor tester support High-resolution 5.0 inches 800 (RGB) x480 wide viewing angle display, Manufacturer: LLOOPK