50,000/500,000 count, high accuracy, wide bandwidth True RMS multimeter. Extech MM570 Features 0.02 percent 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 100kHz True RMS ACV bandwidth; 1000V input protection on all functions ; T1, T2 and T1-T2 dual Type K input temperature display in F or C; Optional Windows 95/98/NT/2000/ME/XP compatible PC communication software and optically isolated cable.