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Uni-t Ut139C 5999 Count True RMS LCD Digital Auto Range Multimeter AD/DC Voltage Current Tester with Resistance Capacitance NCV Test and Temperature Measurement

4.2 4.2 out of 5 stars 46 ratings
Currently unavailable.
We don't know when or if this item will be back in stock.
Brand UNI-T
Power Source Handheld
Style Digital
Color Red, Grey
Item Weight 1 Grams

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Customer reviews

4.2 out of 5 stars
46 global ratings

Customers say

Customers like the functionality, build quality, and value of the electric circuit testing device. They mention it's a great all-purpose meter that meets their expectations very well, is reasonably well-made, and provides good value for money. Some appreciate the speed, saying it updates more quickly than their previous meter.

AI-generated from the text of customer reviews

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FunctionalityBuild qualityValue for moneySpeed
11 customers mention "Functionality"11 positive0 negative

Customers are satisfied with the functionality of the product. They mention it's a great all-purpose meter, meets their expectations very well, and is fully capable. Some say it's an excellent diagnostic tool that complies with all the features described.

"...This has been useful already in measuring voltage and current on my Arduino circuitry. I think the knob-switch has a good feel to it...." Read more

"...resistance readings however, it is a very well built meter and plenty good enough for what I need it for.." Read more

"...if you are a professional this will also work as a back up and is fully capable. I do have a Fluke that works perfectly after many years...." Read more

"Great all purpose meter at a great price. I bought a cheap Craftsman only to turn around and buy this one...." Read more

8 customers mention "Build quality"8 positive0 negative

Customers are satisfied with the build quality of the electric circuit testing device. They mention it feels solid and reasonably well-made.

"...- microamps, capacitance, true RMS, non-contact voltage, frequency, duty cycle, max/min, and temperature...." Read more

"Very slow continuity and resistance readings however, it is a very well built meter and plenty good enough for what I need it for.." Read more

"...For the money it is well built and I find it hard to exceed the capabilities...." Read more

"...This surprisingly has better build quality and has auto-ranging. I paid a little more but definitely worth every dollar...." Read more

6 customers mention "Value for money"6 positive0 negative

Customers appreciate the value of the product. They mention it's a good meter for the price and of good quality.

"Great meter for the price. Reasonably quick, so far seems to be at least as accurate as the Brymen BM235 I was comparing it to on my desk...." Read more

"Great all purpose meter at a great price. I bought a cheap Craftsman only to turn around and buy this one...." Read more

"This is a great meter at a competitive cost. It has pretty much anything you'll need for general desk electronics and automotive needs as well...." Read more

"Durable, affordable, quality is good." Read more

3 customers mention "Speed"3 positive0 negative

Customers are satisfied with the speed of the electric circuit testing device. They mention it's reasonably quick, updates more quickly than their previous meter, and changes ranges pretty quickly.

"Great meter for the price. Reasonably quick, so far seems to be at least as accurate as the Brymen BM235 I was comparing it to on my desk...." Read more

"...The auto-ranging works well and it changes ranges pretty quickly. The screen is very readable and it updates more quickly than my previous meter...." Read more

"Ordered in on the 4th, got it on the 18th, so the delivery is pretty quick. It's a good quality multimeter. All functions are working...." Read more

Top reviews from the United States

Russ Savela
5.0 out of 5 stars Nice meter. Recommended.
Reviewed in the United States on January 31, 2017
Verified Purchase
Great meter for the price. Reasonably quick, so far seems to be at least as accurate as the Brymen BM235 I was comparing it to on my desk. The continuity test is fast. Feels solid and reasonably well made. The removable battery holder comes out with one screw, which has a metal threaded receptacle, and also allows access to the 600ma fuse, without removing the rubber case, I like the design. It has just about every feature you would want in a multimeter - microamps, capacitance, true RMS, non-contact voltage, frequency, duty cycle, max/min, and temperature.

Some minor things - the LCD viewing angle isn't that great, and the probes aren't anything special (I have better probes I'll use with this, but they also cost more than I paid for the meter, so a minor thing). Input protection is at least adequate for anything I would use it for, and other teardowns and reviews I've seen from reviewers more knowledgeable than me are positive. It was also $35 shipped, meters this good are typically about 4 times that, so there is that. I'll probably buy another one.
7 people found this helpful
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Ryan S
5.0 out of 5 stars Great meter, has a good feel
Reviewed in the United States on March 24, 2019
Verified Purchase
I really like this meter. I had been using an older digital VOM for the last 10 years and wanted something with more features, mainly min & max. This has been useful already in measuring voltage and current on my Arduino circuitry. I think the knob-switch has a good feel to it. With the stand deployed, I can use one hand to turn the knob-switch and the meter doesn't tip. The stand is a little hard to get deployed, I have to use a screwdriver or other stick-like tool to pop it out. I plan to modify it slightly to make it come out easier. The auto-ranging works well and it changes ranges pretty quickly. The screen is very readable and it updates more quickly than my previous meter. This meter lacks a bar graph. A bar graph would be nice, but is not essential in my opinion.

I tried the temperature probe only to play with it, it seems to work fine.

One thing I don't like is the 600ma current-measuring fuse. The 600ma size is hard to come by (fewer choices & more expensive), so I ended up replacing it with a 500ma fuse instead. The fuse size is 6.3X32mm.

Here are the "proper" fuses, 600ma fast acting: https://www.amazon.com/Aodesy-Digital-Multi-Ceramic-Multimeter/dp/B07K24CZ8T

500ma fuses can be found for much less.
3 people found this helpful
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Gordy
4.0 out of 5 stars it is a very well built meter and plenty good enough for what I need it for
Reviewed in the United States on January 31, 2017
Verified Purchase
Very slow continuity and resistance readings however, it is a very well built meter and plenty good enough for what I need it for..
4 people found this helpful
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pedro cardona
5.0 out of 5 stars Quality for the price.
Reviewed in the United States on March 9, 2019
Verified Purchase
This is very good MM for the average person doing simple automotive, Home and electronics that does not require a pro grade meter. I just purchased it as a travel meter for my motorcycle and car for possible trouble shooting if needed. For the money it is well built and I find it hard to exceed the capabilities. if you are a professional this will also work as a back up and is fully capable. I do have a Fluke that works perfectly after many years. I compared both and the 139c is not as accurate but easily meets its specs.
2 people found this helpful
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yanu
1.0 out of 5 stars do not buy This
Reviewed in the United States on May 3, 2019
Verified Purchase
At first I was very happy of the product..
After four months disappointment.
It is a waste of money and I would not recommend it.
One person found this helpful
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J Adames
5.0 out of 5 stars Great all purpose meter at a great price
Reviewed in the United States on June 16, 2016
Verified Purchase
Great all purpose meter at a great price. I bought a cheap Craftsman only to turn around and buy this one. Craftsman is no longer synonymous with quality. This surprisingly has better build quality and has auto-ranging. I paid a little more but definitely worth every dollar. Love the test probe holders in the back. Soft red skin is removable unlike other earlier models. It defaults to DC which makes me think this is aimed at electronic tinkerers like myself. Did not come with the box but it was packaged adequately with all accessories. It is a Chinese product but not cheap quality. I expect to get more reliability and use than both my Craftsman and Harbor Freight cheap quality/priced meters.
5 people found this helpful
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Amazon Customer
5.0 out of 5 stars Good meter with low price.
Reviewed in the United States on July 19, 2016
Verified Purchase
Ordered in on the 4th, got it on the 18th, so the delivery is pretty quick. It's a good quality multimeter. All functions are working. The rubber holster is also good quality and it doesn't stink, like in some other chinese multimeters. This multimeter i very good when it comes to quality/price ratio.
3 people found this helpful
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R.A.
5.0 out of 5 stars Great meter with tons of features
Reviewed in the United States on April 6, 2019
Verified Purchase
Actually bought this to replace and old fluke from the 80’s that died on me. Couldn’t justify the spend on another fluke given how much I use it. It’s dead on accurate and loaded with features the fluke didn’t have. For the price, this can’t be beat. Check the independent reviews on the web and you will see.
2 people found this helpful
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