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  • Reliably handle a wide range of high-current applications with 2000 A AC + DC True RMS, 1400 A AC, and 2000 A DC
  • The large 58 mm (2.3 in) jaw capacity is suitable for large or multiple conductors
  • CAT IV 600 V, CAT III 1000 V rating for added user protection
  • In-rush current measurement captures ‘power-on’ surge current with accuracy and repeatability
  • High voltage measurement of 1000 V AC + DC True RMS, 600 V AC, and 1000 V DC allows the user to perform multiple tests with only one tool
  • Resistance to 400K ohms coupled with a continuity beeper provide the convenience of a multimeter in a clamp meter.
  • Accurately measure frequency up to 1 kHz for optimum troubleshooting
  • Quickly analyze readings using the MIN, MAX, and AVG functions
  • A large backlit display allows for easy visibility in low-lit areas
  • Use the display hold feature to capture readings even when the display cannot be viewed
  • Use the low-pass filter to smooth out noisy loads and stabilize readings


  • Quickly configure, start and stop tests on the 1555 remotely, a safe distance away from any operating, energized equipment, using Fluke Connect® and a smart phone
  • Real time trending gives you easy-to-see visual cues, rather than hard to read, rapidly changing values
  • Report creation using Fluke Connect desktop saves time and makes test results easier to understand
  • Fluke Connect saves test results to the cloud for analysis and preventive maintenance


  • Powerful loop calibrator that provides a very cost effective, integrated solution for calibration, repair, and maintenance of milliamp loops
  • Provides simultaneous mA and % readout for quick, easy interpretation of readings.
  • Delivers mA accuracy of 0.02%
  • Features push button 25% steps for fast, easy linearity checks


  • True-rms measurements for accuracy when measuring complex, non-sinusoidal waveforms
  • 40 mm jaw opening
  • Highest resolution of 1 μA, measure up to 60 A
  • Selectable filter function removes unwanted noise
  • Max/Min/Average readings and hold function
  • Forward-facing LED worklight for use in dark wiring cabinets
  • Backlit display; auto backlight off and auto power off for extended battery life
  • CAT III 600V safety rating
  • Internal Memory Logging: up to 65,000 measurement points


Hart Scientific manufactures these Micro-Baths for calibration of thermometers and sensors that do not fit in block calibrators.