Supply Of Digital High Voltage Insulation Tester, Rated Voltage- 250v, 500v, 1000v, 2500v, 5000v, Output Voltage Accuracy- 5%-10% +/- 10v, Insulation Resistance Range-0.50mohm - 2.00tohm, Output Short Circuit Current- Max- 5ma, Power Supply-rechargeable Lithium Battery Pack 5.2ah..