"A unique device, the MJ15 combines the advantages of fast hands-free use in battery mode and device always ready operation in hand-cranked generator mode. Easy to use, tough and accurate, the MJ15 is designed particularly for producers and distributors of energy, gas, water, telecom services and rail transport. Device supplied with a soft carry-case, a set of 3 leads and 8 x LR6 type batteries.Tester Type = Insulation Resistance TesterMinimum Test Voltage = 500VMaximum Test Voltage = 5000VMaximum Insulation Resistance Measurement = 20GOhmsDisplay Type = AnalogueTest Current = 1mABattery Life = 2000 5-Second TestsMinimum Operating Temperature = -20°CMaximum Operating Temperature = +50°CPower Source = Battery"