UNI-T UT139B
 | Outdated Product Product type: multimeter; Type: digital; voltage; current; resistance; capacity; frequency; duty cycle; Current type: AC / DC; Voltage type: AC / DC; DC voltage minimum (mV): 40; DC voltage max. (V): 600; Measurement accuracy (V⁻) (%): 0.5; AC voltage minimum (mV): 40; AC voltage max. (V): 600 |
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UNI-T UT139B
Device:multimeter
Fast. voltage:40 mV, 600 В
Variable voltage:40 mV, 600 В
D.C:400 µA, 10 А
Alternating current:400 µA, 10 А
Resistance:400 Ω, 40 MΩ
All specifications
Specifications UT139B
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The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog UNI-T 2025 - new arrivals, bestsellers, and the most relevant models UNI-T.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog UNI-T 2025 - new arrivals, bestsellers, and the most relevant models UNI-T.
Model overview based on user reviews
The UNI-T UT139A is a digital multimeter that offers a range of measurement capabilities, including voltage, current, and resistance, with both AC and DC options. It features True RMS capability, autoranging, and functions like diode and continuity tests. The device is equipped with a backlit display and a stand for ease of use. While it is generally considered a reliable tool, some users have noted that the beeper is slow and the hidden wiring detector is not very effective. Additionally, it may take a while to measure large capacitances. Despite these drawbacks, it is appreciated for its accuracy and ability to connect current clamps up to 60A. However, for those specifically interested in measuring capacitance, alternatives like the MCL500 might be more suitable. Overall, the UNI-T UT139A is a solid choice for standard multimeter functions, but may not be the best option for specialized capacitance measurements.
Pros
Cons
If you take it for the sake of measuring capacitance, it’s better to take the MCL500, it is priced like another multimeter, but it measures super (capacitance and inductance)! And the rest of the usual multimeter. Accurately displays; features TRUE RMS capability, can connect current clamps (up to 60A). Slow beeper, does not measure below 100n, takes a long time to measure large capacitances.  Denis : |
Not worth your money! machine speed The squeaker sticks. hidden wiring detector works poorly beeps everywhere is practically useless. use UNI-T UT139C few months |
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Model modifications:
- Model UT139A — no temperature, capacitance, frequency and duty cycle functions
- Model UT139B — no temperature measurement function, there are capacitance, frequency and duty cycle functions
- Model UT139C — has functions for measuring temperature, capacitance, frequency and duty cycle