UNI-T UT256 True-RMS Fork Clamp Meter

Overview

The UT256 is a True-RMS fork (open-jaw) clamp meter for tight spaces. The 15 mm open fork slips onto a conductor from the side — no need to thread a closed jaw around it — to measure AC and DC current up to 60 A. It's rated CAT III 600 V and True-RMS, so readings stay accurate on distorted waveforms.

Non-contact voltage detection, relative and zero modes, a backlit display, and a 1 m drop rating make it a quick, one-handed tool for crowded panels and junction boxes. It's backed by UNI-T's nearly 40 years of test-meter manufacturing.

Key Features

• Open fork jaw (15 mm) for current access in tight spaces
• AC and DC current up to 60 A, ±(2%+5)
• True-RMS measurement
• Non-contact voltage (NCV) detection
• Relative and zero modes
• Backlit display; auto power-off (~30 min)
• CAT III 600 V; 1 m drop protection

UT256 Details

Open-Fork Current Access

The 15 mm open fork measures current without closing a jaw around the conductor, so you can take a reading on a wire in a crowded panel or junction box with one hand — where a conventional clamp won't fit.

AC and DC to 60 A

The UT256 reads both AC and DC current to 60 A at ±(2%+5), with True-RMS sensing that keeps AC accurate on the distorted waveforms common around electronic loads.

Quick-Work Features

Non-contact voltage detection flags live conductors, a zero mode nulls DC offset, and relative mode references a reading — the basics for fast field checks. A backlit display and auto power-off round it out.

Applications

Current checks in crowded panels and junction boxes; HVAC and appliance service; quick troubleshooting where a closed clamp won't fit; and general electrical maintenance needing AC and DC current.

Frequently Asked Questions