A new tool in the arsenal. I recently was doing some work with Leakage Current for medical equipment. The Hioki 3283 Clamp-on Leak Current meter was very useful. With a selectable high frequency filter, a MIN / MAX hold feature, a sufficiently wide jaw diameter, and 10 uA resolution, it was great to measure both ground currents as well as net currents across the phases and neutral. Highly recommended.