This auto ranging True RMS clamp meter is capable of measuring AC/DC current and voltage, resistance, frequency, capacitance, duty cycle, contact temperature and up to 3000A AC with optional 18in flexible current probe R5065. Featuring a 6,000 count backlit LCD display with a 31-segment analog bargraph and double molded plastic housing. The R5055 keeps track of min/max readings and includes low pass filter and Low impedance LoZ mode. This product includes an ISO Certificate with full Data and Uncertainties.