The Extech 380396 High Voltage Digital Insulation Tester (220V) features a wide Range Measurement up to 5kV (test voltages of 500V, 1000V, 2500V, and 5000V) with Insulation Resistance to 60GOhm. Featuring polarization Index measurement (PI), Dielectric Absorption Ratio measurement (DAR), AC/DC Voltage measurement to 600V with Min/Max, Peak and Relative functions, and 1 to 15 minute timer function for IR measurements.