Uni T UT139C True RMS Digital Multimeter

Uni-T UT139C is a True RMS digital multimeter manufactured by Uni-Trend Technology (UNI-T). This multimeter is designed to measure various electrical parameters in industrial and household applications.

(1 customer review)

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Uni T UT139C True RMS Digital Multimeter

Uni-T UT139C digital multimeter is a True RMS digital multimeter manufactured by Uni-Trend Technology (UNI-T). This multimeter is designed to measure various electrical parameters in industrial and household applications.

The UT139 series is a CAT III 600V digital multimeter designed for electricians. Its NCV function can effectively check the electrical condition by measuring the EM field strength. The new UT139E/S models include special features such as LoZ (ACV) for “virtual” voltage measurement.

The Uni-T UT139C True RMS Digital Multimeter is a reliable and adaptable tool that provides a wide variety of measuring functions. It is made to give precise readings for testing the diode, resistance, capacitance, frequency, temperature, AC/DC current, and AC/DC voltage.

The Uni-T UT139C comes with features like data hold, relative measurement, and auto power-off for increased convenience. It also has a big LCD display for simple reading.

Its integrated 31-segment analog stick also provides electricians with better visual visibility of measurement results. The UT139S is built with a black EBTN display and it is a perfect gauge for working in dark environments.

To buy uni t ut139c and get more specifications about this product you can contact us through MME.Also, you can get more information about Uni t UT139C’s price and its delivery service in the same way.

Related Products

The Uni-T UT139S and Uni-T UT890C are related products in the Uni-T UT series, with the Uni T UT139C Digital Multimeter being the predecessor that serves as the common foundation for these devices. Each of these multimeters is designed to meet the needs of professionals and hobbyists working in electrical and electronic fields.

UT139C Introduction

Uni T UT 139C Features

  • MAX/MIN/REL modes
  • Data hold, LED backlight, auto power off
  • Full range protection (600V)
  • True RMS
  • NCV
  • Auto/manual ranges selectable

Applications of Uni T UT139C

  • Frequency measurement
  • NCV measurement
  • Resistance measurement
  • Voltage measurement

Uni-T UT 139 C Specifications

  • DC voltage (V) 600V ±(0.5%+2)
  • AC voltage (V) 600V ±(0.8%+3)
  • DC current (A) 10A ±(0.7%+2)
  • AC current (A) 10A ±(1%+3)
  • Resistance (Ω) 60MΩ ±(0.8%+2)
  • Capacitance (F) ±(4%+5)
  • Frequency (Hz) ±(0.1%+4)
  • Temperature (°C) ±(1%+3)
  • Temperature (°F) ±(1.5%+5)


  • Display count 6000
  • Auto range/Manual range /True RMS √
  • Bandwidth (Hz) 45Hz~1kHz
  • NCV/Continuity buzzer √
  • Duty cycle √
  • Diode Around 3V


  • Power 1.5V battery (R6) x 2
  • Display 58mm x 36mm
  • Product color Red and grey
  • Product net weight UT139A/B/C: 354g; UT139S: 345g
  • Product size 170mm x 80mm x 48mm
  • Standard accessories UT139A/B: Batteries, test leads;
  • UT139C/S: Batteries, test leads, temperature probe
  • Standard individual packing Gift box, English manual
  • Standard quantity per carton 20pcs
  • Standard carton measurement 450mm x 330mm x 340mm
  • Standard carton gross weight 12.2kg
  • Optional accessory UT139C: Current sensor AC/DC 40A
1 review

1 review for Uni T UT139C True RMS Digital Multimeter

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  1. thomas dillon

    The Uni-T UT139C is a fantastic multimeter for professionals. It has a wide range of measurement functions, including voltage (AC/DC), current (AC/DC), resistance, capacitance, frequency, temperature, and diode testing.

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Uni-Trend Technology (China) Co., Ltd. is one of the well-known measurement and testing solution providers in Asia. Uni-Trend is an ISO9001 and ISO14001 certified company, with T&M products meeting certifications such as CE, ETL, UL, GS, etc.

Design and development

With the rapid technological advancements of today's society, Uni-Trend maintains its goal of producing the highest quality standard products through continuous research and development.

Uni-Trend's team of R&D engineers and technical experts is focused on creating high-quality, diverse, and competitive products. During product development, Uni-Trend emphasizes innovation and safety, to ensure that all new products meet customer needs and meet safety standards from a Global.

Quality and Management

Uni-Trend uses the PDCA model for planning, continuous improvement, and active implementation of its quality management system, which is also based on the ISO 9001 international quality standard system. Uni-Trend's applied and effective management has had a positive impact on product quality and works through close and effective supervision.

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Uni-T offers a wide range of high-quality testing and measurement instruments to cater to diverse needs. Here are some of Uni-T's popular products:

more information

Looking for the Best Place to Buy Uni-T Products in Dubai? When it comes to purchasing top-quality Uni-T brand testing equipment in Dubai, MME-AE is your ultimate destination. With its extensive range of Uni-T products and a reputation for excellence, MME-AE is the go-to source for professionals and enthusiasts alike. Uni-T is renowned worldwide for its reliable and innovative testing instruments. From multimeters to thermal imagers, Uni-T products are trusted for their accuracy, durability, and user-friendly features. Whether you're an electrician, engineer, or hobbyist, Uni-T offers the perfect tools to meet your testing needs. At MME-AE, you can find an impressive selection of Uni-T products, all conveniently located in Dubai. As an authorized distributor of Uni-T, MME-AE ensures that you have access to genuine products that meet the highest standards of quality and performance. When you choose MME-AE, you can enjoy several benefits. Their knowledgeable staff can assist you in selecting the right Uni-T products for your specific requirements. They provide reliable customer service and technical support, ensuring a smooth buying experience from start to finish. Dubai is a bustling hub for trade and innovation, and MME-AE stands out as a trusted supplier of Uni-T testing equipment. With its extensive inventory and competitive prices, MME-AE offers unbeatable value for your investment. Don't miss out on the opportunity to purchase Uni-T products in Dubai. Visit MME-AE today and experience the excellence of Uni-T's testing equipment firsthand. Trust MME-AE as your reliable partner in obtaining the high-quality instruments you need for your projects.
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Electrical Specifications
AC voltage range/resolution/accuracy

DC voltage range/resolution/Accuracy

AC current range/resolution/Accuracy

DC current range/resolution/Accuracy

10A / ±(0.7%rdg+2dgt)

Resistance Range/resolution/Accuracy

60MΩ / ±(0.8%rdg+2dgt)

Capacitance Range/resolution/Accuracy

99.99mF / ±(4%rdg+5dgt)

Frequency range/resolution/Accuracy

10Hz~10MHz / ±(0.1%rdg+4dgt)

Temperature range/resolution/ Accuracy

-40°C to 1000°C / ±(1%rdg+3dgt)

Mechanical and General Specifications

170mm x 80mm x 48mm




1.5V battery (R6) x 2


Batteries, temperature probe, test leads

Auto range

Continuity test

Diode test


Duty cycle


True RMS


6000 counts