This high voltage insulation tester is capable or testing voltages up to 5000V and measures insulation resistance up to 60G. The R5002 performs a spot insulation test by applying a regulated and stabilized voltage to measure the amount of flowing current and then calculates resistance in order to evaluate insulation integrity. Features Test Voltages of 500V, 1000V, 2500V, and 5000VMeasure Insulation Resistance to 60GLarge backlit LCD display with analog bargraphTimer function for insulation resistance measurements (1 to 15min)ACDC Voltage from 0 to 600V with MaxMin, peak and relative functionsPolarization index measurement (PI)Dielectric absorption ratio measurements (DAR)MaxMin, Peak, Relative value and Data Hold functionsCat. IV 600V safety ratingLow battery indicator and auto shut off