The Extech EX613-NIST is a versatile digital multimeter with dual Type K thermocouple inputs, capable of precise temperature measurements for superheat analysis. It features a built-in non-contact AC voltage detector, True RMS for accurate readings in noisy waveforms, and a DC current mode suitable for automotive and marine applications. The device includes functions for DC voltage, resistance, capacitance, and frequency, along with microampere measurement for HVAC flame rods. With a 40,000 count display, data and peak hold, and capability to measure motor capacitors up to 40,000µF, it offers comprehensive testing tools.