CCTV tester - The CCTV tester is a professional tool for CCTV installation or troubleshooting. This tester can be used by any professional installer or by a novice do it yourselfer. It has a 2.8 inch TFT-LCD display with backlight brightness adjustment to make the screen easy to see in any application. It features display brightness and contrast, color saturation adjustment, video format display, video signal strength meter, works on both NTSC and PAL, PTZ control, PTZ test for signal and data, built in network cable tester, RS485 communication address scan it has a DC12V 1 amp output for camera power, lithium battery for more about 15 hours of operation, audio test function, multi lingual display. Includes: wall charger, RS232 cable, BNC extender cable, RS485 cable, DC power cable, Audio in cable, Lanyard, carrying case.