CEM DT-9810 Mini AC Leakage Current Tester 200mA 2A 200A Shielded transformer jaw opens to 1.2 100A high resolution Least affected by external magnetic  eld, providing wide measuring range from very small Designed to safety standard IEC 61010-2-032: over-voltage CAT.III, 300V and pollution Data hold function to allow for easy reading in dimly lit or hard-to-reach locations