1)cctv tester for cctv system,cctv lcd monitor 2)2.5 ... )640*480 High limpid resolution cctv tester for cctv system,cctv lcd monitorKey FeaturePortable tester with monitor and PTZ control function ... inside,Support audio input(Only for text box)Support DC12V output,offer electricity for camera. (Only for text box)OSD edit ... .W.624g,G.W.817g New design cctv tester for cctv system,cctv lcd monitor