The UT281E+ uses a flexible coil instead of a rigid jaw, so it wraps around large or awkward conductors — busbars, cable bundles, tight gear — to measure AC current up to 9.99 kA. It's rated CAT III 1000 V / CAT IV 600 V and True-RMS, with inrush-current capture for motor and transformer start-up.
A dual display shows two values at once, voltage and resistance round out the electrical set, and 999 result sets store on-board. The 1000 mm flexible coil and AA-battery power keep it practical for utility and industrial feeder work. It's backed by UNI-T's nearly 40 years of test-meter manufacturing.
Key Features
Flexible 1000 mm coil for large and awkward conductors
AC current up to 9.99 kA (10 Hz–1000 Hz)
True-RMS measurement
Inrush-current capture for motor and transformer start-up
AC/DC voltage to 1000 V; resistance to 60 MΩ; continuity
Dual display; 999-set data storage
CAT III 1000 V / CAT IV 600 V; AA battery power
UT281E+ Details
Flexible-Coil Current Measurement
A flexible coil wraps around conductors a rigid clamp can't reach — large busbars, cable bundles, and crowded switchgear — and measures AC current up to 9.99 kA, opening up high-current work in tight or oversized installations.
Inrush Capture & True-RMS
Inrush-current capture records the surge when motors and transformers start, and True-RMS sensing keeps AC accurate on distorted waveforms across the 10 Hz–1000 Hz measurement band.
Working Set & Storage
A dual display shows two readings at once, AC/DC voltage to 1000 V and resistance round out the electrical measurements, and 999 result sets store on-board for later review.
Compare the UT281 Series
UT281E+
UT281F
Max AC current
9.99 kA
10 kA
Inrush current
Yes
—
Power measurement
—
Active / apparent / reactive, PF, phase
Connectivity
—
Bluetooth 5.0
Data storage
999 sets
1050 sets
Jaw opening
1000 mm
1100 mm
Applications
High-current feeder and busbar measurement; motor and transformer start-up (inrush) testing; utility and industrial maintenance on large or awkward conductors; and switchgear work where a flexible coil reaches what a clamp cannot.
Frequently Asked Questions
Why a flexible coil instead of a clamp jaw?
A flexible coil wraps around large busbars, cable bundles, and conductors in tight gear that a rigid jaw can't fit around.
How much current can it measure?
AC current up to 9.99 kA.
How does it compare to the UT281F?
The UT281E+ measures current with inrush capture; the UT281F adds active/apparent/reactive power, power factor, and Bluetooth.
⚠️ WARNING (California Proposition 65): This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, please visit www.P65Warnings.ca.gov.
