Extech 380320: Analog Insulation Tester
Manual ranging Insulation tester with 250V, 500V, and 1000V Test Voltages
The 380320 is an Analog Insulation Tester with a large, easy to read analog display. Featuring a live circuit warning which displays the actual AC voltage measurement, Automatic discharge circuit, Lock Power On feature for extended test times, and Insulation resistance up to 400M?. Complete with heavy duty test leads, alligator clip test lead, 6 x AA batteries, hanging strap and hard carrying case.