🔌 Power Up Your Testing Game! Rugged design ensures reliability in demanding environments. Offers 5 insulation test voltages (50V to 1000V) for diverse applications. Easily fits into your toolkit, perfect for on-the-go professionals. Automatically computes Polarization Index and Dielectric Absorption Ratio for quick assessments. A must-have for electrical contractors and industrial electricians alike. 5 test voltages compact design rugged durability The Fluke Insulation Resistance Tester 1507 is a robust, compact device designed for electrical contractors and industrial electricians, offering multiple insulation test voltages and smart calculation features to enhance efficiency and reliability in electrical assessments.