Black Friday Deals: From $9.99, Save Up to 50%, Win Xiaomi A1 For Free | Tomtop


Mouse over to zoom in

UNI-T UT139C High Performance True RMS Digital Multimeters for Electrical Maintenance and Repairing

UNI-T UT139C High Performance True RMS Digital Multimeters for Electrical Maintenance and Repairing

Price on the app only:

Already have TOMTOP APP

Scan the product's code to buy directly!

Note: Please update TOMTOP App to the latest version.

Don't have TOMTOP APP

Download freely and enjoy extra offers!

Ship From:
  • China Warehouse
  • United States Warehouse
  • Germany Warehouse
Usually will be shipped in business days hours
The request failed! Please try again.
Sorry, it seems that there are no available shipping methods for your location.Please contact us for further assistance.


Ship to

United States
Stock in: china
Preorder Add To Cart Out of Stock

Arrival Notice

if the goods arrival in 90 days,we will inform you by email!


Arrival Notice

Notification Subscription Success!

if the goods arrival in 90 days,we will inform you by email!

Notification Subscription Failed!

Error appeared,Please try again later!

Arrival Notice
Add to Favorites


Key Features
UT139 Series digital multimeters are newly designed to offer users better performance and higher safety rating. Totally over-load protection and unique structural design make it new type of multimeter with high performance/ price ratio and a best choice for electricians used in electrical maintenance and repairing.
1、True RMS for the whole series;
2、Measure signals with varied frequency (VFC);
3、Measure large capacitance up to 100mF;
4、Optional AC/DC 60A current clamps in different models to measure current up to 60A(1mv=1A);
5、NCV designed for the whole series, a necessity for electricians;
6、AA1.5V*2(5#) battery, easy for users to purchase and replace;
7、Soft rubber holster is easy  to stand 2m drop;
8、Optional magnetic hanging strap offered to facilitate tests in special location;
9、Fast to replace fuse, just by opening battery cover;
10、Reliable with use of internal 2PCS fuses with high-breaking capacity;
11、Protection against 600V input/1 minute from misconnection;
12、Safety Rating: CAT III 600V.
An ideal tool for equipment testing, maintenance and repair widely needed in electronics, electric power, schools, metallurgy, communications, manufacturing, petroleum, national defense, chemical industry, etc.

Display Count: 6000
Auto Range: √  
Manual Range: √  
True RMS: √  
Bandwidth (Hz): 45Hz ~1kHz
V.F.C: √  
Duty Cycle: 0.1% ~ 99.9%
Diode: Around 3V
NCV: √  
Auto Power Off: Around 15 Minutes
Continuity Buzzer: √  
Low Battery Indication:    ≤2.5V     
Data Hold: √  
Relative Mode: √  
MAX/MIN: √  
LCD Backlight: √  
Input Protection: 600Vrms
Input Impedance for DCV: 1GΩ Max

Model: UT139C
DC Voltage (V):    60mV/600mV/6V/60V/600V     ±(0.5%+2)
AC Voltage (V):    60mV/600mV/6V/60V/600V     ±(0.8%+3)
DC Current (A):    600μA/6000μA/60mA/600mA/6A/10A ± (0.7%+2)
AC Current (A):    600μA/6000μA/60mA/600mA/6A/10A ±(1%+3)
Resistance (Ω): 600Ω/6kΩ/60kΩ/600kΩ/6MΩ/60MΩ ±(0.8%+2)
Capacitance (F): 9.999nF/99.99nF/999.9nF/9.999μF/99.99μF/999.9μF/9.999mF/99.99mF ±(4.0%+5)
Frequency (Hz):    10Hz-10MHz ±(0.1%+4)
Temperature (°C): -40 °C~1000°C ±(1.0%+3)
Temperature (°F): -40°F~1832°F ±(1.5%+5)

General Characteristics:
Power:     AA 1.5V * 2 (not included)
LCD Size: 58mm * 36 mm
Product Colour: Red and Grey
Product Net Weight: 370g
Product Size: 175mm * 81mm * 48.5 mm
Package Size: 22 * 16 * 6cm / 8.7 * 6.3 * 2.4in
Package Weight: 566g / 1.2lb

Package list:
1 * UNI-T UT139C True RMS Digital Multimeters
2 * Test Leads
1 * Temperature Probe


Post a new topic

Please note that TOMTOP Forums are a community for all communicating and getting help each other. There will be some enthusiastic friends participate in your discussions. Of course TOMTOP customer service (with tomtop customer service icon) response is guaranteed ,which is the same way you contact us at

open this forum in full page
Customer Reviews

Average Rating:


based on 18 Customer Reviews

  • 5 stars
  • 4 stars
  • 3 stars
  • 2 stars
  • 1 stars

Share your thoughts with other customers and get Tomtop Points, the first 5 reviews get DOUBLE Tomtop Points!

Write a Customer Review
  • By m***1

    January 14, 2016

    Alles ok, wie beschrieben. Danke.

    Is this helpful? (0) (0)

  • By s***5

    December 29, 2015

    good product

    Is this helpful? (0) (0)

  • By b***r

    December 23, 2015

    Super Service, Sehr schnelle Lieferung, Gerne wieder ! ..Happy X-Mas

    Is this helpful? (0) (0)

  • By o***7

    December 23, 2015

    Wunderbar blitzschnell versandt worden, vielen Dank!

    Is this helpful? (0) (0)

  • By s***n

    April 21, 2015


    Is this helpful? (0) (0)

  • By r***t

    March 11, 2015

    Fast delivery, top seller.

    Is this helpful? (0) (0)

  • By p***l

    March 11, 2015

    Alles Bestens! sagt vielen Dank!

    Is this helpful? (0) (0)

  • By j***r

    March 11, 2015

    ++++Top Ware+++Gerne wieder+++Top partner++++

    Is this helpful? (0) (0)

  • By w***y

    March 6, 2015

    Доставлен за 16 дней, товар проверен, нареканий нет !

    Is this helpful? (0) (0)

  • By b***2

    February 26, 2015

    Very Good Very Fast

    Is this helpful? (0) (0)

  • By j***h

    February 26, 2015

    Sehr schneller Versand, gute Preise, A++

    Is this helpful? (0) (0)

  • By a***0

    February 24, 2015

    Alles bestens

    Is this helpful? (0) (0)

  • By p***z

    February 17, 2015

    Alles super. Blitzversand! Gerne wieder.

    Is this helpful? (0) (0)

  • By j***r

    February 15, 2015

    Alles Tip Top, superschneller Versand, immer wieder

    Is this helpful? (0) (0)

  • By d***0

    January 20, 2015

    Great price, prompt delivery, accurate description .

    Is this helpful? (0) (0)

  • By h***s

    December 30, 2014

    Top multimeter for an unbelievable low price, thanks!

    Is this helpful? (0) (0)

  • By r***e

    December 19, 2014

    Alles Bestens. Top Kundenservice. Danke

    Is this helpful? (0) (0)

  • By s***l

    November 30, 2014

    Alles Top!!! Schneller Versand!!!

    Is this helpful? (0) (0)

Hot Event More

Top Sellers More

Please activate your account and then to buy,We will resend the activation email to help you complete your registration.