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Uni-T Digital Multimeter True RMS with Buzzer with AC / DC / Resistance Measurement UT139B
Digital Multimeters

Uni-T Digital Multimeter True RMS with Buzzer with AC / DC / Resistance Measurement UT139B

The UT139 series are CAT III 600V digital multimeters designed for electricians. The NCV feature can effectively check the electrical status by measuring the intensity of the EM field. 

The UT139 series are CAT III 600V digital multimeters designed for electricians. The NCV feature can effectively check the electrical status by measuring the intensity of the EM field. 

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42 00 €
42 Coins 42 Coins
Delivery by Mon, 20 Jul
2,50 € to a Skroutz Point
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From OnPrice 4.9 (40)
4.9 (40 reviews)
Ίλιον, Αττικής
In-store pickup available
2 pieces
See Multimeters on the page of OnPrice
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Product report

Description

Description

The UT139 series are CAT III 600V digital multimeters designed for electricians. The NCV feature can effectively check the electrical status by measuring the intensity of the EM field. 

Features

  • AC Current
  • AC Voltage
  • DC Current
  • DC Voltage
  • Resistance
  • Capacitance
  • Frequency
  • HOLD Function
  • Auto Power-OFF
  • Diode Test
  • Automatic and Manual Range

Technical Specifications

  • Type of display used: LCD (6000), with backlight
  • DC voltage measurement range: 40mV/400mV/4V/40V/400V/600V
  • DC voltage measurement accuracy: (0.5% + 2 digits)
  • AC voltage measurement range: 40mV/400mV/4V/40V/400V/600V
  • AC voltage measurement accuracy: (0.8% + 3 digits)
  • True value measurement: True RMS
  • DC current measurement range: 400μ/4000μ/40m/400m/4A/10A
  • DC current measurement accuracy: (0.7% + 2 digits)
  • AC current measurement range: 400μ/4000μ/40m/400m/4A/10A
  • AC current measurement accuracy: (1% + 3 digits)
  • Resistance measurement range: 400Ω/4kΩ/40kΩ/400kΩ/4MΩ/40MΩ
  • Resistance measurement accuracy: (0.8% + 2 digits)
  • Capacitance measurement range: 9.999nF/99.99nF/999.9nF/9.999µF/99.99µF/999.9µF/9.999mF/99.99mF
  • Capacitance measurement accuracy: (4% + 5 digits)
  • Frequency measurement range: 9.999Hz/99.99Hz/999.9Hz/9.999kHz/99.99kHz
  • Frequency measurement accuracy: (0.1% + 4 digits)
  • Continuity test: Yes, Buzzer
  • Overall dimensions (L x W x H): 180 x 87 x 47 mm
  • Power supply: AA Battery x2

Manufacturer

Manufacturer Details

Warnings & Safety Information
See full description

Specifications

Specifications

Colour
Red
with LCD Screen
Yes
True RMS
Yes
with Buzzer
Yes

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

See all specifications

Reviews (6)

Reviews

4.3
6
4.3
Review this product
  1. 4
  2. 1
  3. 3 stars
    0
  4. 1
  5. 1 star
    0
Review this product
  • Construction quality
  • Accuracy in measurements
  • Value for money
  • Nektarios_Katrivesis7653
    4
    2 out of 3 members found this review helpful
    Nektarios_Katrivesis7653

    Good accuracy in measurements for its cost, relatively slow in final display when measuring in Auto scale.
    The only problem is in continuous measurement, where it measures and beeps, stops and measures again and beeps, which of course confuses you and makes it impossible to be sure.
    The problem is factory-related and affects the entire Uni-T UT139 series,
    you will find several videos with reviews that mention and show it.
    I have also uploaded my own video showing the problem.

    Translated from Greek ·
    • Construction quality
    • Accuracy in measurements
    • Value for money
    Did you find this review helpful?
  • magla
    5
    magla

    Verified purchase

    It does the job it's supposed to. The sampling rate is relatively fast, maybe personally I wanted it to be a tad faster.

    Translated from Greek ·
    Did you find this review helpful?
  • konpan
    2
    konpan

    The instrument was purchased two years ago and although it worked perfectly at first, for the past 5-6 months it has been affected by humidity, maybe because it is not that high (around 60-67%), and it shows resistance non-zeroing in the beeper position, and in the capacitor measurement position it also does not zero.
    I am not satisfied with this and of course I do not recommend it.

    Translated from Greek ·
    Did you find this review helpful?
  • Loufer21#
    5
    0 out of 2 members found this review helpful
    Loufer21#
    Expert user

    Perfect multimeter with accurate settings and high-quality construction. Very fast measurements. Definitely worth its money.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    mishas_mixovskii

    Verified purchase

    Very good, it measures everything easily to use!!!!

    Translated from Greek ·
    • Construction quality
    • Accuracy in measurements
    • Value for money
    Did you find this review helpful?
  • 5
    philipnik92

    Verified purchase

    Very good for its price.
    WARNING it does not have a temperature sensor.

    Translated from Greek ·
    Did you find this review helpful?
  • Nektarios_Katrivesis7653
    4
    Nektarios_Katrivesis7653

    Good accuracy in measurements for its cost, relatively slow in final display when measuring in Auto scale.
    The only problem is in continuous measurement, where it measures and beeps, stops and measures again and beeps, which of course confuses you and makes it impossible to be sure.
    The problem is factory-related and affects the entire Uni-T UT139 series,
    you will find several videos with reviews that mention and show it.
    I have also uploaded my own video showing the problem.

    Translated from Greek ·
    2
  • magla
    5
    magla

    It does the job it's supposed to. The sampling rate is relatively fast, maybe personally I wanted it to be a tad faster.

    Translated from Greek ·
    0
  • konpan
    2
    konpan

    The instrument was purchased two years ago and although it worked perfectly at first, for the past 5-6 months it has been affected by humidity, maybe because it is not that high (around 60-67%), and it shows resistance non-zeroing in the beeper position, and in the capacitor measurement position it also does not zero.
    I am not satisfied with this and of course I do not recommend it.

    Translated from Greek ·
    0
  • Loufer21#
    5
    Loufer21#

    Perfect multimeter with accurate settings and high-quality construction. Very fast measurements. Definitely worth its money.

    Translated from Greek ·
    0
  • 5
    mishas_mixovskii

    Very good, it measures everything easily to use!!!!

    Translated from Greek ·
    0
  • See all
Questions (1)

Questions

44 users have this product and can help you

Ask for the product
BASSstarlet

Γειά σας.
Έχω κάποια φθηνά πολύμετρα αλλά θέλω και ένα σαν το συγκεκριμένο, για να μετρήσω την μίνιμουμ τάση που φτάνει το κύκλωμα στο αυτοκίνητο, όταν έχω μεγάλες καταναλώσεις λόγω ηχοσυστήματος. Το προτείνετε ή έχετε κάτι άλλο;

BASSstarlet 2023-01-07
konkyritsis

Για εμένα ναι είναι αρκετά καλά και δοκιμασμένα εδώ και χρόνια με καλή ακρίβεια για την κατηγορία του. Το μόνο που με εκνευρίζεις είναι ότι το φως της οθόνη δεν μένει μόνιμα αναμμένο αλλά πρέπει κάθε φορά να το ξανανάβεις

konkyritsis 2023-10-16
Verified purchase
1 Reply Reply to
See all questions (1)

Description & Specifications

The UT139 series are CAT III 600V digital multimeters designed for electricians. The NCV feature can effectively check the electrical status by measuring the intensity of the EM field. 

Features

  • AC Current
  • AC Voltage
  • DC Current
  • DC Voltage
  • Resistance
  • Capacitance
  • Frequency
  • HOLD Function
  • Auto Power-OFF
  • Diode Test
  • Automatic and Manual Range

Technical Specifications

  • Type of display used: LCD (6000), with backlight
  • DC voltage measurement range: 40mV/400mV/4V/40V/400V/600V
  • DC voltage measurement accuracy: (0.5% + 2 digits)
  • AC voltage measurement range: 40mV/400mV/4V/40V/400V/600V
  • AC voltage measurement accuracy: (0.8% + 3 digits)
  • True value measurement: True RMS
  • DC current measurement range: 400μ/4000μ/40m/400m/4A/10A
  • DC current measurement accuracy: (0.7% + 2 digits)
  • AC current measurement range: 400μ/4000μ/40m/400m/4A/10A
  • AC current measurement accuracy: (1% + 3 digits)
  • Resistance measurement range: 400Ω/4kΩ/40kΩ/400kΩ/4MΩ/40MΩ
  • Resistance measurement accuracy: (0.8% + 2 digits)
  • Capacitance measurement range: 9.999nF/99.99nF/999.9nF/9.999µF/99.99µF/999.9µF/9.999mF/99.99mF
  • Capacitance measurement accuracy: (4% + 5 digits)
  • Frequency measurement range: 9.999Hz/99.99Hz/999.9Hz/9.999kHz/99.99kHz
  • Frequency measurement accuracy: (0.1% + 4 digits)
  • Continuity test: Yes, Buzzer
  • Overall dimensions (L x W x H): 180 x 87 x 47 mm
  • Power supply: AA Battery x2

Manufacturer

Manufacturer Details

Warnings & Safety Information
Colour
Red
with LCD Screen
Yes
True RMS
Yes
with Buzzer
Yes

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

Reviews (6)

4.3
6
4.3
Review this product
  1. 4
  2. 1
  3. 3 stars
    0
  4. 1
  5. 1 star
    0
Review this product
  • Construction quality
  • Accuracy in measurements
  • Value for money
  • Nektarios_Katrivesis7653
    4
    2 out of 3 members found this review helpful
    Nektarios_Katrivesis7653

    Good accuracy in measurements for its cost, relatively slow in final display when measuring in Auto scale.
    The only problem is in continuous measurement, where it measures and beeps, stops and measures again and beeps, which of course confuses you and makes it impossible to be sure.
    The problem is factory-related and affects the entire Uni-T UT139 series,
    you will find several videos with reviews that mention and show it.
    I have also uploaded my own video showing the problem.

    Translated from Greek ·
    • Construction quality
    • Accuracy in measurements
    • Value for money
    Did you find this review helpful?
  • magla
    5
    magla

    Verified purchase

    It does the job it's supposed to. The sampling rate is relatively fast, maybe personally I wanted it to be a tad faster.

    Translated from Greek ·
    Did you find this review helpful?
  • konpan
    2
    konpan

    The instrument was purchased two years ago and although it worked perfectly at first, for the past 5-6 months it has been affected by humidity, maybe because it is not that high (around 60-67%), and it shows resistance non-zeroing in the beeper position, and in the capacitor measurement position it also does not zero.
    I am not satisfied with this and of course I do not recommend it.

    Translated from Greek ·
    Did you find this review helpful?
  • Loufer21#
    5
    0 out of 2 members found this review helpful
    Loufer21#
    Expert user

    Perfect multimeter with accurate settings and high-quality construction. Very fast measurements. Definitely worth its money.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    mishas_mixovskii

    Verified purchase

    Very good, it measures everything easily to use!!!!

    Translated from Greek ·
    • Construction quality
    • Accuracy in measurements
    • Value for money
    Did you find this review helpful?
  • 5
    philipnik92

    Verified purchase

    Very good for its price.
    WARNING it does not have a temperature sensor.

    Translated from Greek ·
    Did you find this review helpful?
  • Nektarios_Katrivesis7653
    4
    Nektarios_Katrivesis7653

    Good accuracy in measurements for its cost, relatively slow in final display when measuring in Auto scale.
    The only problem is in continuous measurement, where it measures and beeps, stops and measures again and beeps, which of course confuses you and makes it impossible to be sure.
    The problem is factory-related and affects the entire Uni-T UT139 series,
    you will find several videos with reviews that mention and show it.
    I have also uploaded my own video showing the problem.

    Translated from Greek ·
    2
  • magla
    5
    magla

    It does the job it's supposed to. The sampling rate is relatively fast, maybe personally I wanted it to be a tad faster.

    Translated from Greek ·
    0
  • konpan
    2
    konpan

    The instrument was purchased two years ago and although it worked perfectly at first, for the past 5-6 months it has been affected by humidity, maybe because it is not that high (around 60-67%), and it shows resistance non-zeroing in the beeper position, and in the capacitor measurement position it also does not zero.
    I am not satisfied with this and of course I do not recommend it.

    Translated from Greek ·
    0
  • Loufer21#
    5
    Loufer21#

    Perfect multimeter with accurate settings and high-quality construction. Very fast measurements. Definitely worth its money.

    Translated from Greek ·
    0
  • 5
    mishas_mixovskii

    Very good, it measures everything easily to use!!!!

    Translated from Greek ·
    0
  • See all
42,00 €
2,50 € to a Skroutz Point