CATV Meter Signal Level Meter No Doulbe channel, A/V, C/N, Average Power, Trunk line Voltage, S110/S110D Signal Level Meter is an ... routine maintenance of the CATV system. S110/S110D Signal Level Meter is compatible to both analog / digital channels, with ... high brightness backlight operating modes, with clear LCD screens, dual-channel measurement display, so it is convenient and pragmatic; besides, ...