Description

UNI-T UT281E Digital Flex Clamp Multimeter – Flexible, Accurate, and Built for High Current Measurement

The UNI-T UT281E Digital Flex Clamp Multimeter is a high-performance, professional-grade instrument designed for measuring large AC currents safely and efficiently. Featuring a flexible Rogowski coil sensor, this multimeter offers exceptional versatility for measuring currents up to 3000A AC — perfect for electricians, industrial engineers, and maintenance professionals who need to measure conductors in tight or hard-to-reach spaces.

Built with precision engineering and robust safety features, the UT281E combines flexibility, accuracy, and reliability, making it one of the most advanced flexible clamp meters in its class.

Advanced Flexible Coil Design

At the heart of the UT281E is its Rogowski coil design — a flexible, lightweight sensor that allows the user to measure current in thick cables, bus bars, and irregularly shaped conductors where traditional clamp meters cannot fit.

With a sensor length of 450mm, it easily wraps around large cables or multiple conductors, offering effortless access to confined spaces or complex electrical installations.

This flexible coil design not only improves convenience but also enhances measurement safety, allowing non-contact AC current detection without needing to disconnect or expose live wires.

Wide Measurement Range and High Accuracy

The UNI-T UT281E supports a wide current measurement range from 0.1A to 3000A AC, providing the versatility needed for residential, commercial, and industrial applications.

Its True RMS (Root Mean Square) technology ensures accurate readings even when measuring non-linear or distorted waveforms, such as those generated by variable frequency drives (VFDs), inverters, or switching power supplies.

The device provides multiple selectable ranges (30A, 300A, and 3000A) to maintain precision across different current levels, with a basic accuracy of ±(3% + 5).

Intelligent Display and User Interface

The UT281E features a large, backlit digital LCD display that clearly shows measurement values even in dimly lit environments. The user-friendly interface includes dedicated buttons for Data Hold, MAX/MIN recording, and Zero Adjustment, allowing quick calibration and efficient data capture during measurements.

The backlight makes the display easy to read in dark electrical cabinets or industrial sites, while the auto power-off function helps conserve battery life when the device is not in use.

Comprehensive Features for Professionals

The UT281E offers a complete range of professional functions, making it suitable for demanding electrical environments:

• AC Current Measurement: 0.1A–3000A AC

• True RMS Measurement: Accurate on non-sinusoidal waveforms

• MAX/MIN Recording: Captures current peaks and fluctuations

• Data Hold Function: Freezes the displayed value for easy reading

• Zero Adjustment: Ensures accuracy by eliminating offset drift

• Backlit Display: For working in low-light conditions

• Auto Power-Off: Extends battery life during field use

All of these features are built into a compact and ergonomic design that fits comfortably in the hand and can be easily carried in a tool bag.

Safety, Durability & Portability

The UNI-T UT281E is designed with safety as a top priority. It complies with CAT IV 600V / CAT III 1000V safety ratings, ensuring protection when working in high-energy electrical environments.

The flexible coil sensor provides non-intrusive measurement, minimizing risk during operation. Its rugged outer casing is built from impact-resistant ABS material, offering durability against drops and harsh conditions on industrial sites.

The meter is lightweight and portable, with a soft carrying case included for convenient storage and transportation. Powered by standard AAA batteries, it offers extended operation time and reliability in fieldwork situations.

Applications

The UNI-T UT281E Digital Flex Clamp Multimeter is ideal for a wide range of electrical measurement tasks, including:

• Industrial and commercial electrical maintenance

• Power distribution and switchgear systems

• Generator and motor current analysis

• HVAC system current testing

• Renewable energy systems (solar inverters, wind generators)

• Facilities management and field inspections

Its wide measurement range and flexible design make it indispensable for professionals who need precise current measurements in environments where space and access are limited.

Key Features at a Glance

• Model: UNI-T UT281E

• Measurement Type: AC Current (True RMS)

• Range: 0.1A – 3000A AC

• Sensor Type: Flexible Rogowski Coil (450mm length)

• Display: Large backlit LCD

• Functions: Data Hold, MAX/MIN, Zero Adjustment, Auto Power-Off

• Safety Rating: CAT IV 600V / CAT III 1000V

• Accuracy: ±(3% + 5 digits)

• Power Supply: 2 × 1.5V AAA batteries

• Operating Temperature: 0°C – 40°C

• Storage Temperature: –20°C – 60°C

• Weight: Approx. 170g

• Accessories: Carrying bag, batteries, user manual

Why Choose the UNI-T UT281E Digital Flex Clamp Multimeter?

When it comes to measuring high AC currents in tight spaces, the UNI-T UT281E stands out as a versatile and reliable solution. Its flexible coil design allows effortless measurement around thick or bundled conductors, while its advanced True RMS circuitry ensures accuracy in modern electrical systems.

Durable, portable, and packed with smart features, it’s the perfect tool for professionals who demand both performance and safety in every job.

Data Sheet