Video level meter:PEAK ,SYNC signal level, color burst chroma level measurement; RJ45 cable TDR test:testcable pairstatus, length, attenuation, reflectivity, impedance, skew etc. measurement range is 180M. UTP cable test:Test UTP cable connection status and display on the screen. Read the number on the screen; Cable tracer:search BNC cable, network cable and telephone cable from the mess cable; Zoom Image:4x zoom, to enlarge image, Screen snapshot, record ,save ,view and record and pl, Manufacturer: ZXZZAS