This AHD test monitor features a 3.5" LCD screen, BNC video input and output, 12V DC power output and RS-485 output. Both static and PTZ cameras can be tested, the RS-485 output supports Pelco compatible PTZ cameras and the tester has an ID scanner allowing PTZ cameras on the bus to be found easily. The 12V DC output allows cameras to be powered locally from the tester in order to pinpoint interference issues. This tool is particularly helpful when focusing vari-focal cameras. The unit has a built in CAT5E network cable tester, simply plug one end of your patch lead into the tester and one end into the remote unit and your cable status will be shown on the screen alerting you to any crossovers. The tester is supplied in a stylish carry case.