Clamp Earth Resistance Tester FC 1.38 Inch Large Jaw ,Easy to Use

1. 0.025 to 1500 wide ground loop resistance range to meet all needs 2. 40 mm (1.38 in) large jaw opening for testing very thick grounding conductors and/or equipment busbars 3. 0.2 mA to 1000 mA ground leakage current measurement without breaking the loop-ideal for system fault diagnosis 4. A wide AC current range from 0.2 A to 30 A allows one instrument to be used in multiple applications 5. User-defined upper/lower alarm limits, support rapid measurement evaluation