50,000/500,000 count, high accuracy, wide bandwidth True RMS multimeter. Extech MM560 Features 0.03% basic DCV accuracy; 50,000 count display with 500,000 counts for DCV and Hz; True RMS combination AC+DC function; Highest resolution to 1uV, 0.01uA, 0.0001Hz, 0.01 Omega; 4 to 20mA, displayed as 0-100 percent for process current measurements; up to 20kHz True RMS ACV bandwidth; 600V input protection on all functions (1000V on Voltage); Optional Windows 95/98/NT/2000/ME/XP compatible PC communication software.