Digital multimeter measures voltage, current, resistance, capacitance, frequency, duty cycles, and temperature True RMS (root mean square) meter provides accurate readings when measuring linear or nonlinear loads where the current or voltage has an undistorted or distorted waveform K-type thermocouple probe provides temperature measurements Measures duty cycles to 99.90%, indicating the percent of time a circuit is on Meets International Electrotechnical Commission (IEC) safety standard 61010 and is certified for Category III installations up to 1,000V and Category IV installations up to 600V