Insulation test range: 1507: 0.01 M? to 10M? Includes auto-discharge of capacitive voltage for added user protection Provides lo-ohms earth-bond continuity (200 mA) Simplifies repetitive or hard-to-reach testing with the remote test probe Insulation test voltages: 1507: 50 V; 100 V; 250 V; 500 V; 1000 V Save both time and money with Automatic calculation of Polarization Index and Dielectric Absorption Ratio Make repetitive tests simple and easy with the 1507"s Compare (Pass/Fail) function Includes live circuit detection to prevent insulation test if voltage >30 V is detected