True RMS Multimeter with 50,000/500,000 count LCD The Extech MM560A-NIST is a high accuracy full range multimeter that functions with 0.03% basic DCV accuracy and up to 20kHz True RMS ACV bandwidth. 4 to 20mA, displayed as 0-100% for process current measurements. Capacitance, Frequency, Resistance, Continuity, Duty cycle and Diode tests with 600V input protection on all functions (1000V on Voltage). Max/Min recording with auto ranging, Auto Power off, Relative & Hold, Peak function captures transient pulses. Optional Windows compatible PC communication software and optically isolated cable. With NIST Calibration.