
UNI-T UT139C Digital Multimeter AD/DC Voltage Current Tester...
Good for: Shoppers who want a reliable, well-reviewed product
Watch out for: No major red flags detected
Last analyzed: February 2026
Total Reviews
158
On Amazon
Verified
97%
Good
Amazon Rating
4.5
Original rating
Savinoo Rating
4.3
Adjusted rating
Our Recommendation
BE CAUTIOUS - Read individual reviews carefully, especially 1-star and 3-star reviews, before purchasing.
Analysis Summary
- MEDIUM RISK (Score: 85/100) UNI-T UT139C Digital Multimeter AD/DC Voltage Current Tester... has some concerning review patterns. Major Issues Found: 70% of 5-star reviews are very short (under 15 words).
- Genuine 5-star reviews usually explain why UNI-T UT139C Digital Multimeter AD/DC Voltage Current Tester... is excellent. Positive Indicators: 97% of reviews are from verified purchases, which is good..
Customer Reviews from Amazon
Most Helpful Review
"Das Multimeter ist richtig gut verarbeitet und macht was es soll.Positiv: Batterie leicht einsetzbar, gefederte Aufstellklappe, geruchlose Schutzgummierung, genaue Messerte. gute AblesbarkeitNegativ: (deswegen 1 Stern Abzug) die mitgelieferten Messspitzen sind mittelmäßig und geben schlechten Kontakt, Aufbewahrungsbeutel fehltIch habe nun die Messspitzen gegen deutlich bessere mit Goldkontakten getauscht und nun liefert das Multimeter Spitzenwerte und der Durchgangsprüfer reagiert sofort auf geringsten Kontakt (sehr gut). Der Isolationswiderstand ist auf hohem Niveau und die Sicherungen sind mit Quarzsand gefüllt. So soll es sein.Ein empfehlenswertes Multimeter, jetzt fehlt nur noch der Dauertest"
alphonse
Well priced ,well made and very versatile meter that does everything I need.
Anonymous
Good product
inverclyde
Good quality and accurate meter.
anthony cathcart
The meter has all the functions a professional or hobbyist would Need. It is a…
The meter has all the functions a professional or hobbyist would Need. It is a well built quality meter. I've had mine for five years and it works perfect in every way.howdo
Purchased to replace a very cheap DVM which is now on the blink, this one…
Purchased to replace a very cheap DVM which is now on the blink, this one is nice to use, easy to read and responsive enough for a low cost DVM.sam
Excellent value.
What Customers Talk About
Commonly Praised
Commonly Complained
Review Quality Analysis
Review quality helps identify authentic customer feedback. Longer, detailed reviews (50+ words) typically indicate genuine experiences, while high percentages of short reviews (under 20 words) may suggest incentivized or fake feedback.
Average Words
36
Moderate detail
Long Reviews
3%
⚠ Low detail
Short Reviews
23%
✓ Low brief reviews
Review Length Distribution
Authentic vs Brief Reviews
Average Word Count Gauge
Benchmark: 30 words = moderate, 50+ words = detailed & authentic
36
avg. words per review
Interpretation: Review quality appears within normal range for this product category.
Review Velocity
Review velocity tracks how quickly reviews are posted. Steady, gradual accumulation is natural, while sudden spikes or bursts (20+ reviews in a single day) may indicate incentivized campaigns or coordinated activity.
Average Per Day
0.02
Natural pace
Max in One Day
1
Normal range
Steady Velocity Detected
Reviews posted at a consistent, natural pace over time — typical of organic customer feedback.
Rating Breakdown
This chart shows how customers rated UNI-T UT139C Digital Multimeter AD/DC Voltage Current Tester.... Products with authentic reviews typically show a bell curve with most ratings in the 3–4 star range. A heavily polarized distribution — many 5★ and 1★ with few middle ratings — can be worth investigating further.
Key Findings
70% of 5-star reviews are very short (under 15 words). Genuine 5-star reviews usually explain why the product is excellent.
These findings suggest this is a trustworthy product.
Looks legit — check on AmazonReady to buy UNI-T UT139C Digital Multimeter AD/DC Voltage Current Tester...?
Our analysis is based on 158 reviews.
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How does this compare?
This product scores 85/100 — better than most products we've analyzed. A strong trust signal.
Check on Amazon