UNI-T UT139C Pro – True RMS Smart Multimeter with NCV, Temperature Sensor & Full-Range AC/DC Measurement

Take your electrical diagnostics to the next level with the UNI-T UT139C Pro, a highly reliable and intelligent True RMS digital multimeter designed for accuracy, durability, and versatile functionality. Whether you're a professional electrician, an HVAC technician, or a DIY enthusiast, this compact handheld tool delivers dependable performance in every scenario—from basic voltage checks to advanced temperature testing and frequency analysis.

? Why Choose the UT139C Pro?

Unlike standard multimeters, the UT139C Pro uses advanced True RMS technology, which means it measures both pure and distorted AC waveforms accurately, making it perfect for modern electrical environments with variable frequency drives, switching power supplies, or complex AC signals.

The auto-ranging capability lets the device automatically select the best range for measurement, eliminating guesswork and speeding up your workflow. It also includes a high-contrast backlit LCD screen, bar graph display, and quick-response sampling for smooth real-time data.

? Core Functions & Features:

✅ 1. True RMS AC/DC Measurement

• Provides accurate readings for voltage (up to 600V) and current (up to 10A) even on nonlinear loads.

• Ideal for troubleshooting modern electronics, industrial systems, and variable power circuits.

✅ 2. NCV (Non-Contact Voltage) Detection

• Built-in NCV sensor detects live wires or energized circuits without making physical contact—enhancing safety during high-voltage work.

✅ 3. Integrated Temperature Measurement (°C/°F)

• Comes with a temperature probe to measure the heat levels of components, HVAC outputs, or thermal-sensitive systems.

• Perfect for checking motors, transformers, and heating/cooling systems.

✅ 4. Frequency, Capacitance, and Resistance Testing

• Includes full support for measuring resistance, capacitance, frequency, diode status, and continuity.

• Easily switch between modes using the tactile rotary dial.

✅ 5. Large Backlit Display & Analog Bar Graph

• High-resolution screen with bright backlight ensures excellent visibility in dimly lit or outdoor environments.

• Analog bar graph for real-time signal fluctuations.

✅ 6. Safety & Durability

• Rated CAT III 600V for professional-grade safety.

• Features input protection, anti-burn fuse, and rubberized protective casing for drop resistance.

✅ 7. Data Logging and Hold Functions

• Includes MAX/MIN capture, data hold, auto power-off, and low battery indicator.

• Save your readings or monitor voltage fluctuations with ease.

? Technical Specifications at a Glance:

?️ Ideal Applications:

• ⚡ Electrical Installation & Maintenance

• ?️ HVAC System Diagnostics

• ? Lab Testing & Electronics Prototyping

• ? Automotive Electrical Work

• ? Home Appliance Repair

• ? Power Supply and Inverter Troubleshooting