The Fluke 1503 Insulation Tester is compact, rugged, reliable, and easy to use. With its multiple test voltages, it is ideal for many troubleshooting, commissioning, and preventative maintenance applications. Additional features, like the remote probe on this tool save both time and money when performing tests. Features: Insulation test range 0.1 M? to 2000 M? Insulation test voltages 500 V, 1000 V Repetitive or hard-to-reach testing is easy with the remote test probe Live circuit detection prevents insulation test if voltage > 30 V is detected for added user protection Auto-discharge of capacitive voltage for added user protection AC/DC voltage: 0.1 V to 600 V 200 mA Continuity Resistance: 0.01 ? to 20.00 k? Save battery power with auto power off Read measurements easily with large, backlit display CAT IV 600 V overvoltage category rating for added user protection Remote probe, test leads, probes and alligator clips included with each tester Accepts optional Fluke TPAK magnetic hanging system to free your hands for other work Four AA alkaline batteries (NEDA 15 A or IEC LR6) for at least 1000 insulation tests