HIOKI 3287 AC/DC Clamp Meter | AC/DC 10.00 A / 100.0 A, 0.01 A resolution, true RMS, φ35 mm jaw

HIOKI 3287 Precision AC/DC Clamp Meter: 10A / 100A High-Resolution True RMS Measurement

Overview

The HIOKI 3287 is a handheld AC/DC clamp meter designed for precision electrical testing and low-current diagnosis. Its core strength is two high-resolution ranges, 10.00A and 100.0A, which accurately detect small current changes that typical high-current clamp meters miss. Weighing just 170g with a 16mm-thick body and accepting conductors up to φ35mm in diameter, it is a high-accuracy diagnostic tool for maintenance staff working on industrial automation equipment, automotive electronics and precision electrical systems.

Key Specifications

High Resolution for Precision Diagnosis

• Precision low-current detection: Two ranges, 10.00A / 100.0A, with very high resolution, suited to detecting leakage current, standby current or precision motor circuits.
• True RMS: Provides accurate true readings even for waveforms distorted by harmonics (such as from inverters, computer power supplies and dimmers).
• AC/DC measurement: Full support for AC and DC current and voltage measurement, plus resistance and continuity checks (with beeper).

Portability and Ease of Use

• 16mm thin body: Accepts conductors up to φ35mm in diameter and is designed for tight spaces, easily reaching into dense wire bundles or confined distribution cabinets to quickly target the conductor under test.
• Lightweight handheld body: Weighing just 170g, its slim ergonomic design allows all functions to be switched with one hand, improving comfort during long work sessions.
• Data Hold: Built-in data hold makes it easy to read a stable value after measuring in a gap where the display cannot be seen.

Safety Rating and Stability

• Safety rating: Complies with CAT III 600 V (current), protecting the operator during industrial electrical inspection.

Source

Specifications per the HIOKI product page and clamp meter series catalog (retrieved 2026-10-20).