Fluke 1577 Insulation MultimeterThe Fluke 1587 and 1577 Insulation Multimeters combine a digital insulation testerwith a full-featured, true RMS digital multimeter in a single, compact, handheld unit, which provides maximum versatility for both troubleshooting and preventative maintenance. Whether you work on motors, generators, cables, or switch gear, the Fluke 1587/1577 Insulation Multimeters are ideally suited to help you with your tasks and at a cost that is far less than buying the two products.Feature15871577Insulation test voltages 50V, 100V, 250V, 500V, 1000V?Insulation test voltages 500V, 1000V?Insulation test: 0.01 M? to 2.0 G??Insulation test: 0.1 M? to 600 M??Auto discharge of capacitive voltage??Insulation test smoothing reading?Frequency?Capacitance?Diode test?Temperature?Min/Max?Low pass filter (for work on VSD's)?AC/DC Voltage??DC millivolts??AC/DC milliamps??Resistance (0.1 ? to 50 M?)??Continuity??Three-year warranty??Remote probe, test leads, alligator clips??K-type thermocouple?Rugged, utility hard case??Auto power off to save battery power??True-rms??Large display with backlight??Live circuit detection prevents insulation test if voltage > 30 V is detected for added user protection??CAT III 1000V, CAT IV 600V measurement category??Accepts optional Fluke TPAKTMmagnetic hanging system to free your hands for other work??