The Fluke 301C Clamp Meter has a lightweight and compact body, which allows you to carry it around in your pocket. The slim and thin jaw can easily clamp onto tightly packed wires. The Fluke 301C tests current, voltage, resistance, continuity, frequency (voltage and current), capacitance, and diode, etc.. You can handle more test needs with it. With the True-rms function, you can test complex signals more accurately, such as frequency conversion signals.