Uni-T UT221 is a professional digital True RMS clamp meter for accurate measurement of AC/DC current up to 2000 A with a large jaw opening of 63 mm. It offers automatic range selection, a clear analog bar graph, and wide measurement capabilities including voltage, resistance, frequency, and duty cycle – ideal for demanding service and industrial applications.
The Uni-T UT221 clamp meter from the UT220 series is designed for situations where you need to safely and conveniently measure high currents without disconnecting the circuit. Thanks to True RMS mode, it provides more accurate results even for non-sinusoidal waveforms, and with a maximum display count of 6000 it offers better readability of measured data.
In practice, you will also appreciate functions for quick diagnostics and installation checks, such as Data Hold, MAX, relative mode, inrush current measurement, or a low-pass filter. The integrated 66-segment analog bar graph makes it easier to monitor dynamic changes during measurement.
Package contents:
- Clamp meter
- Battery (1×)
- Test leads
- Output cable
- Carrying case
- User manual
Specifications
- Manufacturer
- Uni-T
- Model
- UT221
- Type
- True RMS clamp meter
- AC current
- 2000 A ±(2.5% + 5)
- DC current
- 2000 A ±(2.5% + 5)
- AC voltage
- 750 V ±(1.2% + 5)
- DC voltage
- 1000 V ±(0.8% + 1)
- Resistance
- 66 MΩ ±(1% + 2)
- Frequency
- 20 MHz ±(0.1% + 3)
- Duty cycle
- 10% ~ 90%
- Maximum display count
- 6000
- Functions
- True RMS, diode test, continuity test, Data Hold, MAX, relative mode, low-pass filter, inrush current measurement, analog bar graph, automatic range selection, low battery indicator
- Jaw opening
- 63 mm
- Power supply
- 9V battery (6F22)
- Display
- 43 × 30 mm
- Dimensions
- 298 × 107 × 47 mm
- Weight
- 726 g
- Certifications
- CE, UKCA, cETLus
