The Fluke 1550C insulation resistance testers offer digital insulation testing up to 5kV, making them ideal for testing a wide range of high voltage equipment including switchgear, motors, generators and cables. Fluke insulation testers can now conduct the entire range of test voltages specified in IEEE 43-2000 with a best in class, 3 year warranty and CAT IV 600 V safety rating. With measurement storage and PC interface, the 1550C is a perfect tool for preventative or predictive maintenance programs designed to identify potential equipment failures before they occur.