Klein Tools Insulation Resistance Tester.
Model: ET600. Includes probes, instruction manual + storage bag.
The ET600 is a multi-function Megohmmeter capable of producing 125V, 250V, 500V, and 1000V test voltages for insulation resistance measurements up to 4000M. Also tests AC/DC voltages up to 1000V with automatic ranging True RMS technology. Convenient lock function and built-in stand for hands free operation. Dual-function backlit display monitors process.