The Fluke 1577 Insulation Multimeters combine a digital insulation tester with a full-featured, true RMS digital multimeter in a single, compact, handheld unit, which provides maximum versatility for both troubleshooting and preventative maintenance.

• Insulation test voltages 500 V, 1000 V
• Insulation test: 0.1 M? to 600 M?
• Auto discharge of capacitive voltage
• AC/DC Voltage
• DC millivolts
• AC/DC milliamps
• Resistance (0.1 ? to 50 M?)
• Continuity
• Three-year warranty
• Remote probe, test leads, alligator clips
• 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 TPAKTM magnetic hanging system to free your hands for other work

Specifications:

• Voltage DC:
  • Maximum voltage: 1000 V
  • Accuracy: ?(0.2%+2)
  • Maximum resolution: 0.001 V
• Voltage AC:
• Maximum voltage: 1000 V
  • Accuracy: ?(2%+3)
  • Maximum resolution: 0.1 mV
• Current DC:
  • Maximum amps: 400 mA
  • Amps accuracy: ?(1.0%+2)
  • Maximum resolution: 0.01 mA
• Current AC:
  • Maximum amps: 400 mA
  • Amps accuracy: ?(2.0%+2)
  • Maximum resolution: 0.01 mA
• Resistance:
  • Maximum resistance: 50 M?
  • Accuracy: ?(1.2%+2)
  • maximum resolution: 0.1?
• Minimum test current @ 1k?/V: 1 mA
• Test voltages: 500, 1000 V
• Maximum resistance per test voltage:
  • 50 V
  • 100 V
  • 250 V
  • 500 V
  • 1000 V: 600 M?
• Maximum resolution per test voltage:
  • 50 V: 0.01 M?
  • 100 V: 0.01 M?
  • 250 V: 0.1 M?
  • 500 V:0.1 M?
  • 1000 V: 0.1 M?
• Accuracy per test voltage:
  • 50 V: ?(3% + 5)
  • 100 V: ?(3% + 5)
  • 250 V: ?(1.5% + 5)
  • 500 V: ?(2.0% + 5)
  • 1000 V: ?(2.0% + 5)
• Operating temperature: ?20?C to +55?C
• Storage temperature: -40?C to +60?C
• Humidity (without condensation):
  • 0% - 95% (10?C ? 30?C)
  • 0% - 75% (30?C ? 40?C)
  • 0% - 40% (40?C ? 55?C)
• Operating altitude: 2000 m
• Overvoltage category: Complies with ANSI/ISA 82.02.01 (61010-1) 2004, CAN/CSA-C22.2 NO. 61010-1-04, and IEC/EN 61010-1 2nd Edition for measurement CAT III 1000 V and CAT IV 600 V
• Agency approvals: 2000 m CAT III 1000 V, CAT IV 600 V; 3000 m CAT II 1000 V, CAT III 600 V
• Battery life alkaline:
  • Meter use: 1000 hours
  • Insulation test use: Meter can perform at least 1000 insulation tests with fresh alkaline batteries at room temperature. These are standard tests of 1000 V into 1 M? with a duty cycle of 5 seconds on and 25 seconds off.
• IP rating: IP40