UNI-T UT121B Smart True RMS Digital Multimeter – 1000V DC, 750V AC & NCV

Description

Product Overview
The UNI-T UT121B Smart Digital Multimeter is a slim, handheld testing instrument designed to simplify routine electrical measurements. Its automatic function and range identification reduces the need for manual range selection, while the large screen supports convenient reading during troubleshooting.
The UT121B combines True RMS measurement with AC/DC voltage testing, resistance and capacitance measurement, frequency measurement, NCV detection, and live-wire identification. It is suitable for technicians, electronics users, and general electrical maintenance tasks within its specified limits.

Test & Measurement Tools and Solutions
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Key Features
– True RMS measurement: Supports RMS-based AC measurements.
– Automatic range selection: Helps simplify measurement setup.
– Dual-display screen: Displays measurement information in a convenient format.
– Wide voltage ranges: Measures DC voltage up to 1000V and AC voltage up to 750V.
– Resistance measurement: Supports readings up to 60MΩ.
– Capacitance measurement: Supports readings up to 60mF.
– NCV detection: Helps detect AC voltage without direct contact.
– Live-wire identification: Helps identify live conductors using the designated function.
– Continuity testing: Supports circuit continuity checks with an audible indication.
– Additional functions: Includes data hold, low-battery indication, automatic power-off, and a flashlight.

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Technical Specifications
Specification Details
Brand UNI-T
Model UT121B
Product type Smart True RMS digital multimeter
Display Large LCD, dual display
Display count Approximately 6000-count class; manufacturer documentation lists 6099/6199 depending on source
DC voltage Up to 1000V
AC voltage Up to 750V
Resistance Up to 60MΩ
Capacitance Up to 60mF
Frequency 10Hz–10MHz
AC voltage frequency 10Hz–1kHz
Additional functions NCV, live-wire identification, continuity, diode test, data hold
Range selection Automatic
Safety category CAT III 600V, per manufacturer series specifications
Power supply 2 × 1.5V AAA batteries
Dimensions Approximately 143 × 74 × 17mm
Net weight Approximately 142g
Specifications are based on UNI-T’s UT121 series documentation. Verify the exact revision and its safety markings before use. The safety category is not the same as the maximum voltage measurement range.

Test & Measurement Tools and Solutions
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Applications
The UNI-T UT121B can be used for:
– AC and DC voltage checks.
– Electrical circuit troubleshooting.
– Resistance and capacitance measurements.
– Continuity testing on de-energized circuits.
– Basic electronics diagnostics.
– NCV and live-wire checks using the designated functions.
– Routine electrical maintenance and technical inspections.
Buyer Guidance
Before taking a measurement, confirm the selected function and follow the manufacturer’s instructions. Never measure resistance or continuity on an energized circuit. For high-voltage work, check that the meter’s safety category and the test leads are appropriate for the electrical environment.
UAE Supply and Quotation
Dynavation Star Electrical Fittings Trading LLC supplies electronic components and test-and-measurement instruments to technicians, contractors, engineers, resellers, and commercial buyers across the UAE.
Contact Dynavation Star on WhatsApp for a quotation and current availability. Pricing and stock are confirmed directly.