... dual display with high brightness True RMS AC voltage and current measurements, frequency up to 100KHz 12 measurement functions ... conduction, dBm, etc Parameters AC+DC, AC+Hz, Readout+%, and Readout+dBm synchronously displayed Measurement speed up to 15 times ... according to set accuracy ComparatorTo judge HI, IN, LO and display, with ALARM at HI/LO(selectable) Communication interface RS232C, SCPI ...