Zeta 20 Insulation Tester - Analog Digital Insulation & continuity tester for measure of 10Kohm-2Gohm with selectable test voltage up to 1000V. LR measurement from 0.01-99.9 ohm & up to 600V AC/DC. Storage of Min, Max & last 50 readings. Pre selectable measurement time, stopwatch, fuse blow, auto power off