.Data hold, MAX/MIN relative measurement .Storage data display/recall .True RMS for AC voltage and current .RS232C interfa FEATURES :• Display: Digital and analog display, 3999 counts and 42 segments bar graph, digit is 18mm high • Autorange and manual range • Data hold, MAX/MIN relative measurement • Storage data display/recall • True RMS for AC voltage and current • Back light • ADP measurement ...