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Field Service Test Equipment

Fluke 381 Remote Display True-RMS AC/DC Clamp Meter with iFlex

The Fluke 381 is the first clamp meter with a detachable, remote display and iFlex™ flexible current probe for easier, faster, safer measurements.

The new Fluke 381 does everything you would expect from a clamp meter, and then lets you remove the display for even more flexibility. Now one technician can do jobs that used to require two people. Clamp the Fluke 381 around a conductor, remove the display and walk across the room to operate controls or remove protective equipment, all while watching real-time readings.

The new iFlex flexible current probe (included) expands the measurement range to 2500 A ac while providing increased display flexibility, ability to measure awkward sized conductors and improved wire access.

Safety Conformance IEC/EN 61010-1:2001, 1000V CAT III, 600V CAT IV

  • Wireless technology allows the display to be carried up to 30 ft. away from the point of measurement for added flexibility without interference with measurement accuracy
  • The removable magnetic display can be conveniently mounted where it is easily seen
  • iFlex flexible current probe expands the measurement range to 2500 A ac
  • CAT IV 600 V, CAT III 1000 V
  • Integrated low pass filter and state of the art signal processing allows for use in noisy electrical environments while providing stable readings
  • Proprietary inrush measurement technology to filter out noise and capture motor starting current exactly as the circuit protection sees it
  • Ergonomic design fits in your hand and can be used while wearing protective equipment
  • Radio transmitter automatically sets the correct measurement range so you do not need to change the switch positions while taking a measurement
  • Three-year warranty
  • Soft carrying case

Fluke 381 RangeResolutionAccuracy
AC current via jaw999.9 A0.1 A2 % ± 5 digits
AC current via iFlex™2500 A0.1 A3 % ± 5 digits
DC current999.9 A0.1 A2 % ± 5 digits
AC voltage1000 V0.1 V1.5 % ± 5 digits
DC voltage1000 V0.1 V1 % ± 5 digits
Resistance60,000 Ω0.1 Ω1 % ± 5 digits
Frequency500 Hz0.1 Hz0.5 % ± 5 digits
Low pass filter*  
Removable wireless display*  
18 inch iFlex™ Flexible Current ProbeIncluded  
Wire capacity750 MCM or 2-500 MCM  
Safety ratingCAT III 1000V, CAT IV 600V 
Fluke 381 Remote Display True-RMS AC/DC Clamp Meter with iFlex
Item #: 37239
Weight: 3 lbs.

Last Update: 24th March 2018
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