Kyoritsu KEW 5000 V High Voltage Insulation Tester, 3125, can measure the index of polarization and dielectric absorption ratio (DAR). Kew 3125a is a high voltage insulation tester that is capable of testing the insulation resistance up to 5 kV. Kyoritsu insulation tester has a large digital display with backlight within the system. It has a live voltage warning for safety and auto power off to preserve battery consumption. This high voltage insulation tester works as a guard terminal that eliminates the leakage currents for more accurate testing and is suitable for multipurpose use. Some of its features include dust and drip-proof construction. Kyoritsu kew 3125a is extremely compact and lightweight. Also, the device has an automatic discharge of circuit capacitance.