The new Fluke 1555 and 1550C insulation testers enable insulation testing with voltages up to 10 kV for testing high voltage systems such as switchgear, motors, generators and cables. With these new insulation testers, the user can now work with all test voltages specified in IEEE 43-2000. In addition, Fluke offers a three-year warranty and the CAT IV 600 V safety rating. With measurement data storage and PC interface, the Fluke 1555 and Fluke 1550C are perfect for predictive and preventive maintenance programs to detect potential failures before they occur.