"From Fluke, the 1550C insulation resistance tester offers digital insulation testing up to 5 kV. This means it is ideal for testing a wide range of high voltage equipment, such as switchgear, motors, generators and cables. The Fluke 1550 C insulation tester can conduct the entire range of test voltages specified in IEEE 43-2000 with a best in class and CAT IV 600 V safety rating. Featuring measurement storage and PC interface, the 1550C is the perfect tool for preventative or predictive maintenance programs designed to identify potential equipment failures before they occur. The 1550 model is supplied with an IP67 hard case, NIST traceable certificate of calibration and additional ruggedized crocodile clips.Tester Type = Insulation Resistance TesterMinimum Test Voltage = 250VMaximum Test Voltage = 5000VMaximum Insulation Resistance Measurement = 1TOhmsDisplay Type = LCDTest Current = 1 nA - 2 mABattery Life = 750 TestsMinimum Operating Temperature = -20°CMaximum Operating Temperature = +50°CPower Source = Battery"