HEAT INSULATION The Extech MG500 High Voltage Insulation Tester tests voltages up to 10kV and measures Insulation Resistance to 500GΩ. Designed inside a rugged hard case and includes heavy duty test leads and alligator clips. The MG500 featuresa polarization index and a dielectric absorption ratio measurements. The Enersave limits test duration to 10 seconds to save energy. The Extech MG500 High Voltage Insulation Tester ships complete with: Features Insulation Resistance 800kΩ to 500GΩ (autoranging) Resolution 1kΩ Basic Accuracy ±5% Test Voltages 500VDC to 10kVDC (adjustable in 500V steps) Preset Buttons 1kV, 2.5kV, 5kV, 10kV Polarization index (PI) measurement Dielectric absorption ratio Voltage output warning Automatic discharge Includes MG500 High Voltage Insulation Tester, built-in heavy duty carrying case with cover, test leads, alligator clips, and 8 C batteries to save energy