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Enhance Measurement Experience with the FLUKE 381 Clamp Meter


Are you tired of crouching in cramped spaces to take voltage readings? The FLUKE 381 clamp meter offers a solution with its removable wireless display, allowing you to analyze real-time data from up to 10 meters away without interference. This device is designed to make your job easier and safer.

Fluke 381



Key Features

Versatile Voltage and Current Measurement

The FLUKE 381 can measure both AC and DC voltage up to 1000V and current up to 1000A. For an extended current measuring range up to 2500A, use the included iFlex® Flexible Current Probe. Simply clamp the FLUKE 381 around a conductor, remove the display, and walk across the room to handle controls or remove protective equipment while still monitoring real-time measurements.


True RMS Response for Accuracy

The True RMS response guarantees precise measurements, even with non-linear inputs, ensuring pinpoint accuracy. This is particularly useful for capturing accurate readings in complex electrical environments.


Ergonomic Design

Its ergonomic design makes it easy to use even with gloves, which is ideal when you’re wearing protective gear. The FLUKE 381 is built for comfort and ease of use, no matter the conditions.


iFlex® Flexible Current Probe

The iFlex® Flexible Current Probe extends the measurement range to 2500 A AC while improving display flexibility. With a 6-foot cord, you can easily measure in tight spaces, around awkwardly sized conductors, and among disorganized wires. This flexibility allows for more convenient and versatile measurements in various environments.


Highlights of the FLUKE 381

  • Detachable, Remote Display: The first clamp meter with a detachable, remote display for easier, quicker, and safer measurements.
  • High Current Measurement: Measures 1000 A AC and DC current with a fixed jaw; 2500 A AC current with the iFlex flexible current probe.
  • Voltage Measurement: Measures up to 1000 volts AC and DC.
  • True RMS Measurements: Accurate measurements of nonlinear signals using true-RMS AC voltage and current.
  • Frequency Measurement: Measures frequency up to 500 Hz using both jaw and iFlex.
  • Resistance Measurement: Measures up to 60 kΩ with continuous detection.
  • Recording Capabilities: Automatically captures fluctuations with minimum, maximum, average, and inrush recording.
  • Wireless Technology: Allows the display to be transported up to 30 ft. away from the place of measurement without compromising accuracy.
  • Noise Handling: Integrated low pass filter and advanced signal processing enable use in noisy electrical environments while offering steady readings.
  • Safety Ratings: CAT IV 600V, CAT III 1000V safety rating.


Detailed Measurement Capabilities

  • Current Measurement: Measure up to 1000 A AC and DC with a fixed jaw, and up to 2500 A AC using the iFlex™ flexible current probe.
  • Voltage Measurement: Measure up to 1000 V AC and DC.
  • True RMS Accuracy: Accurately measure non-linear signals with true-RMS AC voltage and current.
  • Frequency Measurement: Up to 500 Hz using both jaw and iFlex™.
  • Resistance Measurement: Up to 60 kΩ with continuous detection.
  • Recording Functions: Record minimum, maximum, average, and inrush values to capture variations automatically.


Wireless Display Module

The display module can work independently of the meter base thanks to low-power 802.15.4 wireless technology. Various meter functions (Hold, MIN MAX AVG, and Backlight) can be controlled remotely, although the display module does not provide complete control over the meter.

  • No Interference: The wireless radio signal does not interfere with meter measurements.
  • Synchronization: The display module is synchronized with the meter base when docked and powered on. A single meter base can sync with several display modules, but only one display module can be synchronized at a time.


Experience the convenience and precision of the FLUKE 381 clamp meter for all your electrical measurement needs. Its innovative design and advanced features make it an essential tool for professionals in the field.