Multi-function insulation tester with backlit dual display, double molded plastic housing and lock function for hands-free operation. REED R5600 Offers This insulation tester is capable of measuring 250V, 500V or 1000V test voltages and insulation resistance up to 2000MO. The R5600 features an easy-to-read backlit dual display, durable double molded plastic housing and lock function with hanging strap for handfree operation in the field. Features Backlit dual displays insulation resistance and test voltage simultaneously 250V, 500V or 1000V test voltages and insulation resistance up to 2000MO Lock function and hanging strap for handfree operation Lo O function for testing connections Datahold function Double molded plastic housing for added protection Low battery indicator and auto shut off Cat. III, 1000V safety rating Included Insulation Tester Test Leads Alligator Clip Hanging Strap Hard Carrying Case Batteries