The Metrel MD9226 TRMS AC/DC Current Clamp Meter is a professional DC and TRMS AC current clamp meter capable of measuring capacitance and frequency. It is equipped with a built-in VFD feature that makes the instrument capable of measuring the true values in accordance with frequency. The MD 9226 has a wide range of extra features, including peak value, data and MAX hold functions, auto power off, auto-ranging and a relative zero function. It uses state-of-the-art measurement technology and is housed in a sturdy industrial-grade case.