UNI-T UT123D Smart Mini Multimeter – Auto Range True RMS AC/DC Voltage & Current Tester with NCV & One-Button Operation

The UNI-T UT123D Smart Mini Multimeter is a compact, intelligent, and high-performance tool designed for fast, accurate, and safe electrical measurements. Featuring True RMS technology, auto-ranging capabilities, non-contact voltage detection (NCV), and a one-button operation interface, this multimeter is ideal for homeowners, electricians, hobbyists, and professionals who demand performance without complexity.

Despite its palm-sized design, the UT123D packs advanced features typically found in larger meters—making it the perfect companion for day-to-day electrical troubleshooting, appliance testing, and low-voltage circuit diagnostics.

Key Features & Benefits

True RMS Measurement

Accurately measures both AC and DC voltage and current—even with irregular waveforms—ensuring reliable performance in all real-world applications.

Auto Range for Simplicity

Automatically detects the optimal range for voltage, current, and resistance, making measurements faster and error-free—no manual adjustment required.

NCV (Non-Contact Voltage Detection)

Quickly identify live wires or voltage presence without direct contact, enhancing user safety during home or commercial installations.

One-Button Smart Operation

Single-button interface for all key functions. Easily switch between AC/DC modes, continuity, resistance, and more with intuitive operation.

Large Backlit Display

The bright, clear digital LCD with backlight and digit bar graph ensures visibility even in dimly lit environments or tight working spaces.

Lightweight & Pocket-Friendly

Weighing less than a smartphone and small enough to fit in any pocket or toolbox, the UT123D is perfect for electricians on the go.

Safety & Durability

Rated CAT II 600V, the UT123D includes built-in overload protection, anti-burn fuses, and a durable ABS shell for safe daily use.

Technical Specifications

Ideal Use Cases

• Home appliance testing and installation

• Basic electrical maintenance and troubleshooting

• DIY electronics and circuit testing

• Quick field diagnostics for electricians

• Safety checks using NCV before installations

• Academic and training environments