● High-definition video surveillance tester, built-in high-definition 4.3-inch 800 (RGB) * 480 wide viewing angle display, supports PAL/NTSC format image signal. ● PTZ control function: The video surveillance tester has built-in PTZ control protocols such as Pelco-D/P. Through the RS485 interface, it can control the up, down, left, right, zoom, and aperture of the PTZ. ● DC12V 1A power output function: The video surveillance tester specially designed a 12V 1A power output port for the power supply of the camera to provide temporary power supply for the camera. ● Voice test function: The Voice test function of the video surveillance tester can test Voice equipment such as pickups at the front end of the video surveillance. ● Enhanced network cable test function: The network cable test function can be tested through the UTP CABLE TEST port on the instrument., Manufacturer: LLOOPK