... cameras. 3.OSD edit menu, CCTV Tester, PTZ testerDescription CCTV Tester, PTZ testerPortable tester with monitor and PTZ control function together. ... line is good or not.Support audio test function.Support battery recharge.OSD edit menu, can adjust Pan controls parameter, ... .Working style:DC9V,2A power supply and 2x1400MAH Li battery.Auto screen protected and saving electricity pattern.Auto recharge ...