Digital multimeter Fluke 179 True RMS Multimeter.fluke-179/) Specifications and Features Measurement Type: Supports True RMS technology for measuring voltage and current accurately on irregular waveforms. Uses: Measuring voltage (AC/DC), current, resistance, frequency, capacitance, and temperature. Safety Level: Designed to withstand high voltages according to CAT IV 600V and CAT III 1000V standards. Display: Equipped with a backlight and an Analog Bar Graph indicator.