... cable test,Video signal generation cctv Tester CCTV Tester 2.5" TFT-LCD , 960 ... (H)×240(V)resolution.Video Test,UTP cable test,Video signal generation,RS485 ... LCD PTZ RS485 UTP Portable cctv tester,cctv camera tester,function of cctv tester, portable tester,PTZ TesterFeature2 ... , and work 5 hoursSpecification: ModelCCTV tester JE-MKM310Signal modeNTSC/PAL Auto suitableDisplay2.5 ...