The Fluke 1550C KIT is the industry’s most advanced insulation tester, offering unmatched accuracy, reliability, and safety. With its patented GUARD technology, the 1550C KIT eliminates the effects of surface leakage currents, providing accurate readings even in high-noise environments. The 1550C KIT also features a built-in digital multimeter, making it a versatile tool for a wide range of electrical testing applications.