Features:This clamp meter can measure AC/DC voltage, AC current, resistance, capacitance, NCV, as well as continuity and diode test.UT213B UT213C have the function of Max Min value and temperature measurement.Only UT213A have the Hz% button for voltage-frequency switching (at voltage gear position) or frequency-duty switching(at frequency gear position). Only UT213C can measure DC current.LCD display with backlight, convenient to operate and read.Data hold function, low battery indication.Flashlight function is available.Suitable for electrical equipment testing and maintenance.