4.0" TFT screen, 800 × 480 resolution · H.264/H.265 decoding display for IPC · HDCVI/AHD/TVI/CVBS video display control · Support SD and HD direct switch · 12V/2A DC power supply for the camera · Support RS–485 control, and audio test · Length and attenuation tests of the network cable · Functions of digital multimeter