"Measures insulation\/low impedance resistance and discharge current. Measures equipotential bonding conductors or earthing conductors by low impedance. Voltage and frequency measurement. Reading memory can be read from PC . Extremely robust housing. Clear, intuitive menu guidance with help functions. Simple, fast operation with 5 softkeys. Phase tester includedTester Type = Insulation Resistance TesterMinimum Test Voltage = 50VMaximum Test Voltage = 1000VMaximum Insulation Resistance Measurement = 100GOhmsDisplay Type = LCD - Dot MatrixTest Current = 200mABattery Life = 1000 Tests (NiCd), 1600 Tests (Alkaline)Minimum Operating Temperature = -10°CMaximum Operating Temperature = +50°CPower Source = Battery"