Make your insulation tests easier to read with the Extech 380320 from FIR, a high-voltage insulation resistance tester with a large analog display. With it's perfectly clear backlit needle display and wide detection range of 0 to 500 megohms, this analog tester makes cable maintenance duties easier.
The Extech 380320 sports 250, 500, and 1000V testing voltages. A live circuit warning lets you know when a cable is currently carrying a load and displays the actual AC voltage measurement. An automatic discharge circuit ensures your meter is fully discharged after every test. For extended testing times, the power lock on feature lets you keep the megohmmeter powered for the full duration of any length test. The Extech 380320 includes heavy-duty testing leads, an alligator clip testing lead, a hanging strap, six AA batteries, and a hard carrying case.