The Klein Tools ET600 is a multi-function insulation resistance tester (megohmmeter) designed for installation, troubleshooting, and preventive maintenance of electrical wiring and equipment. It provides 125V, 250V, 500V, and 1000V DC test voltages for insulation resistance testing.
For insulation testing, the ET600 supports measurements up to 4000 MΩ. It also measures AC/DC voltage up to 1000V with automatic ranging True RMS (TRMS) technology, and includes resistance and continuity functions.
For operation and visibility, the tester features test and lock buttons for hands-free insulation testing, a warning alarm with a high voltage icon, and a backlit display with bar graph plus Auto-Power Off, High Voltage, Max/Min, and Hold indicators. A built-in stand supports hands-free use, with an optional magnetic hanger available.
The ET600 includes CAT III/CAT IV safety rated test leads and heavy-duty alligator clip test leads, along with batteries, a carrying case, and an instruction manual. It is safety rated CAT IV 600V and CAT III 1000V.