UNI-T UT121B Smart Digital Multimeters
UT121 series feature large-screen & ultra-thin multimeters and auto range and they can display two measurement results at the same time, which is convenient for home and non-professional users. They are convenient and fast electronic tools.
Features
- True RMS.
- AC 750V/DC 1000V voltage measurement.
- 60MΩ large resistance measurement.
- 60mF large capacitance measurement.
- Full-scale input protection.
- NCV/LIVE measurement.
- Large size LCD screen.
- 19mm ultra-thin body.
- 6000 counts.
- Intelligent identification gear.
Specifications
| Specifications | Range | UT121B |
| AC voltage (V): | 6.000V/60.00V/600.0V/750.0V | ±(1.5%+3) |
| AC voltage frequency (Hz): | 10Hz-1kHz | ±(0.5%+2) |
| DC voltage (V): | 6.000V/60.00V/600.0V/1000.0V | ±(1.2%+3) |
| Resistance (Ω): | 600.0Ω/6.000KΩ/60.00KΩ/600.0KΩ/60.00MΩ | ±(2%+5) |
| Capacitance (F): | 60.00nF/600.0nF~600.0μF/6000uF~60.0mF | ±(10%+5) |
| Frequency (Hz): | 10.00Hz-10.00MHz | ±(0.1%+3) |
| Temperature(℃/℉): | –40℃~1000℃/–40°F~1832°F | ±3℃/±6℉ |
| Features | ||
| Display count: | 6099 | |
| Dual display: | √ | |
| Auto range: | √ | |
| NCV detection: | √ | |
| LIVE detection: | √ | |
| Diode test: | √ | |
| Continuity buzzer: | √ | |
| LCD high voltage alert: | √ | |
| Flashlight: | √ | |
| Low battery indication: | √ | |
| Auto power off: | √ | |
| Data hold: | √ | |
| Category ratings: | CATⅢ 600V | |
| General Characteristics | ||
| Power: | 2 x AAA Battery 1.5V | |
| Display: | 52mm x 66mm | |
| Product size: | 143mm x74mm x 17mm | |
| Product net weight: | 142g | |
Applications
- Electrical Testing.
- Voltage and Current Measurement.
- Resistance Testing.
- Continuity Checking.
- Automotive Diagnostics.



Package Contents
- 1 x UNI-T UT121B Smart Digital Multimeter
- 2 x AAA Battery 1.5V (Included in UT121B Digital Multimeter Unit)
- 1 Pair x Test Lead
- 1 x K-Type Temperature Probe
- 1 x User Manual
- 1 x Carrying Bag

