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