Fluke 381

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

Overview

The Fluke 381 lets one technician make measurements around a conductor, remove the display and monitor readings from a distance. It includes a flexible current probe (iFlex) to extend the AC current range, and supports AC/DC voltage and current, inrush capture, resistance, frequency functions. Designed for safety and flexibility in noisy or awkward environments with rugged build and strong performance.

Key Features

• Removable magnetic display that can be placed 30 feet away for safer, more flexible readings

• iFlex flexible current probe included to extend AC current measurement up to 2500 A

• True-RMS AC and DC voltage and current for accurate results under non-linear loads

• Integrated low-pass filter for stable readings in noisy electrical environments

• Inrush recording to capture motor startup current exactly as protection sees it

• Min, max, average record functions

• Resistance measurement with continuity detection

• AC/DC voltage to 1000 V through fixed jaw and leads

• Frequency measurement up to 500 Hz via jaw or iFlex

• Safety rating CAT IV 600 V / CAT III 1000 V

Technical Specifications

• Model: 381

• AC Current via Jaw: up to 999.9 A; resolution 0.1 A; accuracy 2 % ± 5 digits (10-100 Hz), 5 % ± 5 digits (100-500 Hz) (Fluke)

• AC Current via iFlex Probe: up to 2500 A AC (45-500 Hz); resolution 0.1 A / 1 A depending on current; accuracy 3 % ± 5 digits (Fluke)

• DC Current: range up to 999.9 A; resolution 0.1 A; accuracy ~2 % ± 5 digits (Fluke)

• AC Voltage: up to 1000 V; resolution 0.1 V / 1 V; accuracy ~1.5 % ± 5 digits (20-500 Hz) (Fluke)

• DC Voltage: up to 1000 V; resolution 0.1 V / 1 V; accuracy ~1 % ± 5 digits (Fluke)

• Frequency (via jaw): 5.0 Hz to 500.0 Hz; resolution 0.1 Hz; accuracy 0.5 % ± 5 digits (Fluke)

• Frequency (via iFlex): 5.0 Hz to 500.0 Hz; resolution 0.1 Hz; accuracy 0.5 % ± 5 digits with trigger thresholds depending on current level (Fluke)

• Resistance: up to 60,000 Ω; resolution 0.1 Ω / 1 Ω / 10 Ω depending on range; accuracy ~1 % ± 5 digits (Fluke)

• Jaw Opening: 34 mm (Fluke)

• Flexible Probe Diameter: ~7.5 mm; cable length from head to electronics ~1.8 m (Fluke)

• Size (L × W × H): 277 × 88 × 43 mm (remote display unit ~55 mm) (Fluke)

• Weight: ~350 g (Fluke)

• Operating Temperature: -10 °C to +50 °C (Fluke)

• Storage Temperature: -40 °C to +60 °C (Fluke)

• Operating Humidity: non-condensing; up to 90 % RH at 10-30 °C, lower % at higher temps (Fluke)

• Altitude (Operating): up to 2000 m; Storage Altitude: up to 12,000 m (Fluke)

Applications

• Measuring current in large conductors or cables where size or layout makes fixed jaw difficult

• Remote monitoring of panel circuits or controls while working under protective equipment

• Capturing inrush current events in motors, HVAC equipment or machine startups

• Field verification of voltage, resistance, frequency in industrial or commercial systems

Why Choose the Fluke 381

• Remote display adds safety and convenience

• Very high current range with iFlex for hard-to-reach or overloaded conductors

• True RMS and filters help in noisy or non-linear electrical environments

• Rugged build with strong safety ratings for heavy use

Order Now

The Fluke 381 is part of Fluke’s remote display clamp meter family. Available for purchase. Ships worldwide.

Original Manufacturer Packaging

These products are industrial surplus items preserved in the original manufacturer box. Learn More

DDPARTSSOLUTION Packaging

These products are industrial surplus items shipped in secure DDPARTSSOLUTION protective packaging. Learn More

Refurbished

These products have been previously installed or may show cosmetic signs of prior handling. Learn More