UNI-T PRO UT191T Multimeter Review & Teardown!

[@yambo59]

Again Uni-T is really showing some fresh ideas and a great look in these newer models. I was surprised the 191T didnt both read and light the LED''s since the less expensive 89XD does this. But I have to assume its got to do with the 89XD having that virtually Uni-T specific LED range with higher output voltage than possibly any other meter on the market. Its one of my favorite features on the UT89XD along with the nicely done visual indicator for both LED and continuity.

[@electronicengineer]

I have to comment that I am really surprised that you don't have a LOT more subscribers... It is a shame, because, at least in my opinion, you do a very well thought out and thorough review, along with a highly detailed teardown (you know your stuff). You will undoubtedly grow this channel exponentially, over time, as your knowledge combined with your "no frills" approach to reviewing test equipment is just really, really good! Thank you for taking the time to do these reviews for us! Fred

[@KeepOnTesting]

Thx Fred...absolutely appreciate your stellar kudos..hopefully we'll be at 60K subs soon.. 😉👍

[@electronicengineer]

@@KeepOnTesting It is well deserved Darren.

[@KeepOnTesting]

It's a really well built unit, lots of durability for the long haul. yes, I was surprised to see the 191T unable to give a reading for the LED's but my real pet peeve is the lack of high current fuse access, if they could allow access to the mA surely they could have done the same to the 11A fuse>>?

[@yambo59]

I have this one and almost feel it should have gone 4.5 stars, its that good especially for the money - others sell for more and give you less in both quality and performance.

[@thetechgenie7374]

I agree even through it you have to take back cover off to access 10 amp fuse. How many times are going going to over current 10 amp range? It the smaller one you usually blow. Plus you have threaded post, so you won't strip the plastic over time changing it. I look at the details like this. I would have gave it a 4.5, as nothing close to its price range? Even with a Fluke that over $300 you have to take cover off to access fuses. So long it has threaded posts it gets a pass on that and not worth mentioning?

[@derektodd4126]

Just watched this again as Utube suggested this video. Lovely 😍 meters.

[@KeepOnTesting]

Thx Derek 👍 Yes..I love a sea of UNI-T red! 😀

[@aicisha]

Really nice and complex review of a multimeter, thank you very much for sharing these infos !

[@KeepOnTesting]

Thanks ! It's one of my favorite multimeters. Incredible value and versatility.

[@xmenken1]

Thank you for your dissembly of UNI-T multimeter.

[@KeepOnTesting]

No worries Ken, I go inside every multimeter or device that I review.

[@blackcopper8760]

Nice, honest review.

[@KeepOnTesting]

Thx my friend.. check out our website, join for free, and win a new multimeter😊 www.keepontesting.com

[@bonita_pets]

My multimeter 191t bought in 2023 shows a voltage drop in the diodes. Probably in the first batches there was a problem with this, and then it was fixed.

[@KeepOnTesting]

Interesting!! 5 years later..it's been a great multimeter and still going strong on the bench. One of my favs from UNI-T 👍

[@therealdaniboi]

Hey Darren. I just watched this review and I ditched my original plan of getting the UT60S. Now I am in a dilemma between this UT191E/T and a UT17B Max which is the newest one in their lineup and I know you still have to make a review on that model. Hope you get to review that someday. How is your UT191T going to this day?

[@KeepOnTesting]

Still loving the 191T. One of the best dmms UNI-T has made. I'll be reviewing the UNI-T 18B Pro in about 1 week..so stay tubed for that !

[@shahdadkhan]

Nice review. How loud is the continuity buzzer on it. Tested the UT15B max buzzer and its so low you can hardly hear it.

[@KeepOnTesting]

Loud. No problem hearing the continuity with this meter.

[@wilbert330]

Nice review, which one would you recommend between uni-t ut-191E and 139C?

[@KeepOnTesting]

UT191E 😀👍

[@Salty_Legionnaire]

I just bought the Uni-t ut195ds it has some extra features. I guess on the inside it will be similar.

[@KeepOnTesting]

Great job..should be a very nice multimeter !👍

[@playstation2bigs]

Does your UT191T still working up to this day 2024 ? Thinking buying this one or the ut17b max

[@KeepOnTesting]

Yes still works lime a charm..either will serve you well. FYI, I'll be reviewing tge UT18B PRO shortly..

[@playstation2bigs]

@@KeepOnTesting this UT191T is now cheap 62.61 US dollar (I'm from Philippines), do you think they revise or decrease the hardware inside that's why it is cheap now? unlike this video 5 years ago is more expensive

[@KeepOnTesting]

​@@playstation2bigs​@playstation2bigs I think it's just the fact it's not a new Multimeter...that being said it's better than alot of new meters hitting the market. You can't go wrong with the UT191T

[@playstation2bigs]

@@KeepOnTesting okay gonna buy it soon replacing my Zotek ZT102 (4 years old) 😝

[@parlenkow]

Wow! May be this uni-t meter is a good contender for the famous and very expensive fluke 117

[@KeepOnTesting]

You gave me a great idea Wladimir 😊👍

[@mikeoconnor7389]

Hi there! I bought this Uni-T UT191T per Darren's contacts, and really like it. Where I don't have an oscilloscope, wondering if anyone has any resources to help test power quality using a True RMS multimeter? E.g.: I have a portable generator, and would like to test power quality measure on it to know if it is good for sensitive electronics (what doesn't have circuit boards these days?) and also as an indicator of the generators health and maintenance. Things like THD, voltage stability, etc.

[@bizzboss_00]

Planning to buy a clamp add-on for this meter,any suggestions would be appreciate,thanks in advance.

[@mhd230289]

excellent review man. I am your fan...........

[@KeepOnTesting]

Thx my friend, Keep on Testing ! 👍

[@GustavoGarcia-pu5st]

Hello, I have a problem with my meter it´s an uni-t UT109, hold de power button, star, but when relaase the power button turn off... if still pressing the button still on, but when I realease it turn off.. should still on, please, do you know whats going wrong with it? THANKS YOU SOO MUCH!

[@KeepOnTesting]

Try cleaning the internal contacts with IP. Give the multimeter a good internal cleaning, especially any movable parts and try again, sounds like a bad contact issue. Also, replace with a new battery. Let me know

[@GustavoGarcia-pu5st]

@@KeepOnTesting Thanks so much for your answer, sorry for my bad english, I appreciate very much all your videos, I spend hours looking at them... I bought several instrument based on them, regards from argentina!

[@KeepOnTesting]

@@GustavoGarcia-pu5st Thanks my friend ! Keep on Testing!

[@АлександърТ-д7х]

Darren Walker. Thanks for your efforts, like . What will happen if the ut 191t is turned on to measure resistance or ringing, and I put the probe into a 230v outlet. or 380v.?

[@KeepOnTesting]

Hopefully the excellent input protection will do its job and prevent the multimeter from serious damage. 👍

[@АлександърТ-д7х]

was hoping it would protect it from any damage and continue to work perfectly normally. I used ut 139s. It failed the ncv and resistance measurement. I have not checked the amps measurement, temperature and diode test

[@erwinjoshuat1327]

Good day Darren, I have recently received this unit from Uni T (no pun intended) and there is something I noticed fresh from the packaging; the circumference of the knob has traces of unknown fluid. I can't determine the aforementioned fluid but I assure you that it was really noticeable and I swabed it using my very dry fingers and its really present. Is that something I need to worry about?, hence the UFO (Unkown Fluid Oozing) *Pun intended. Thanks for your response.

[@KeepOnTesting]

Hello Erwin, that primordial ooze is just a form of dielectric grease for lubricating the selector switch. Its nothing to worry about and is usually a good thing. It appears UNI-T was a little overzealous in its application on your unit. Wipe off the excess and you should be all set. Btw, that's one of my favorite meters...its something I am always reaching for 👍

[@erwinjoshuat1327]

@@KeepOnTesting Thank you Sir Darren for always answering to our queries. You Sir, are truly a blessing for all of us. I always hope for your good health moreover the continuous success of this channel and the exponential growth of the community within the walls created by your multimeter haven.

[@KeepOnTesting]

@@erwinjoshuat1327 Thanks for the kind words! Keep On Testing!

[@mehmetaksoy6773]

Very solid review! 👍

[@KeepOnTesting]

Thx my friend!

[@gxsszh]

what about ut61e vs ut191e ?I think they are closer.

[@KeepOnTesting]

Would be a nice matchup...thanks for the feedback. I might just do that for a future review.

[@hakiaysan5678]

Hi. Ut191T Is there an overload protection due to incorrect measurement? is he protecting himself? I could not find this information in the catalogue.

[@KeepOnTesting]

Yes, the UT191T has a very good overload input protection 👍

[@hakiaysan5678]

@@KeepOnTesting Thanks mr bro. This made me very happy. I also have ut191t. Thank you

[@Hack3rPT]

Thanks for the video! Would you recommend the UT191T or the UT17B Pro? I've looked at them and the only difference is that the UT17B Pro is not waterproof, but the price is the same, there must be some other difference.

[@KeepOnTesting]

Wow, tough question. 191T has LoZ and LPF plus the Auto Backlight ...17B is slightly larger with a bigger display , audible diode mode and slightly better input protection. Both great multimeters..I'm a big fan of the 191T so it's my First Pick! 😄👍

[@Hack3rPT]

@@KeepOnTesting Yup it's a really tough pick... I'm probably going for the 191T because of that sweet IP65 rating and 2 meter shock proof. The bigger display and audible diode more aren't really important to me, do you think overall the better input protection justifies buying the 17B PRO over the 191T? (I don't work with more than 240v and I also don't plan to measure anything above 5 amps, and also most of the time I work with 12v or 24v.)

[@KeepOnTesting]

@@Hack3rPT I think the 191T will be a perfect fit for you. I absolutely love that multimeter and its one of the most utilized on my bench! It still has great input protection just not quite as beefy as the 17B but awfully close.

[@Hack3rPT]

@@KeepOnTesting Thanks for the recommendation and for the awesome content on your channel! Just two more questions if you don't mind: Do you think I should buy some replacement fuses (the 600mA ones)? And also, I currently only need this for hobby use, do you think it will still be good to use in maybe 5\10 years for electrical work?

[@KeepOnTesting]

@@Hack3rPT Having some extra mA fuses on hand is always a great idea and definitely recommended. Keep everything together in a good case so its always there when you need it. Almost guaranteed you will make use of them at some point! The 191T will still be a strong multimeter even a decade from now. Multimeters in general don't age or lose their usefuness as fast as other instruments or electronic devices so it will be useful now and in the future! I have some multimeters that are 25-30+ years old and they're accurate and useful even today.

Hi. Which of the two would you buy? UT191T or UT139S. Water resistance is not important.

[@KeepOnTesting]

UT191T in a 💓 heartbeat! An incredibly great performer and definitely underrated !

@@KeepOnTesting How does it offer more to make it worth it? I like both. I don't know which one I would do better with.

[@KeepOnTesting]

@ Feature wise they are very similar...The 139S is sleek and has that great EBTN display, however I find myself reaching for the 191T almost daily which says alot! It has great ergonomics, autobacklight and its one of the most accurate dmms in my stable. I'm really impressed with both but if I had to choose and knowing what I know now, I would pick the UT191T.😁👍

@@KeepOnTesting In terms of protection, which one would you recommend? I like the 139s because of the EBTN display. The 191T doesn't like that the mili and micro amp are on the same input with the voltage, resistance etc...

[@KeepOnTesting]

@ I still prefer the feel and robustness of the 191T, it also had better input protection and is IP Rated 👍

[@cagmito76]

im down to this model or the new ut61d plus , which do you prefer ?

[@KeepOnTesting]

I would choose the UNI-T UT191T! IP65 Rated and very well built. You can't go wrong with this dmm and it's underpriced IMHO.😀👍

[@cagmito76]

@@KeepOnTesting ok ill get the 191 thanks

[@KeepOnTesting]

@@cagmito76 Let us know how you like it 😊

[@cagmito76]

@@KeepOnTesting Got it excellent meter , great build UNI-T usually are but this is tough , excellent safety and even has TUV GS safety cert stamped and of course lots of functionality. Best UNI-T Meter i have tried so far.

[@KeepOnTesting]

@@cagmito76 Excellent!! It's one of my favorite Multimeters too!! Keep On Testing!

[@romyjaravata238]

Why is there no review of 191E?

[@KeepOnTesting]

Its identical to the UT191T, except without Temperature.

[@mulondamwinanu8247]

Which is better UT191T or UT61E plus. Which one do you recommend me to buy?

[@KeepOnTesting]

My vote goes to the UT191T, all around great performer, build quality and well priced 👍

[@mulondamwinanu8247]

Thanks. I will go for UT191T. UT191T has 6000 counts and UT61E Plus has 22000 counts. Is UT61E plus more accurate than UT191T?

[@KeepOnTesting]

@@mulondamwinanu8247 191T has better accuracy. 61E has a higher resolution.👍

[@mulondamwinanu8247]

Thanks. How do you perform live wire test when using UT191T. Do you suspend the neutral probe lead when testing a live wire test?

[@soundengineer6332]

Diode test Open terminal voltage??

[@KeepOnTesting]

3.2V

[@soundengineer6332]

i am looking for a low volt power..1volt / 1.5volt

[@soundengineer6332]

is 3.2volt power harmless when measuring low power electronic circuit paths ??

[@KeepOnTesting]

@@soundengineer6332 In diode mode you will be fine..the circuit won't be compromised.

[@soundengineer6332]

Ok thankyou sir

[@dfigueroa903]

I want to get this , need a second meter for automotive repair.... Do you recommend this??????????? I have a brymen bm257s for my main .. Need second for backup ... If I get this, will use it with loadpro test leads... Honest opinion, is it a good meter??

[@KeepOnTesting]

Most definately! Honestly, If I thought differently you would know. 🤓👍 It's extremely well made and very responsive. I think dollar wise its a bargain and you will most certainly be impressed! Tell you what, I'll put my money where my mouth is and if you're not as impressed as I am I'll buy it back from you!! All I ask is that you use the purchase link I've provided above.🤗

[@dfigueroa903]

Darren Walker thank you Will do.. As being an E engineer need my work to be done right ..

[@KeepOnTesting]

@@dfigueroa903 Roger that David, sometimes you don't get a second chance, the 191T will have you covered.

[@dfigueroa903]

One more question What happen to mv and ma function.. You didn't show in your video... Need this for automotive measurements..

[@KeepOnTesting]

@@dfigueroa903 mA testing starts at 9:00 min mark. No problems there (600mA) rating. I negated mV testing from this review but it works just fine.

[@MarcoFranceschini1971]

Too much low count number (6000) for a digital multimeter of this class.

[@NoMadManKZ]

👍

[@ubozkurt]

no freq test

[@edwinjangao]

BUT the capacitance range only 600μF. Cheaper Aneng Multimeter is better than this.

[@KeepOnTesting]

WRONG, Capacitance is 60,000 uF or 60mF. Honestly you can't compare the Aneng to the UT191, Input Protection is far superior on the UNI-T.

[@romyjaravata238]

This is not a good review because this is for the 191T. There is no !91E review.

[@KeepOnTesting]

Makes no sense ... this review was for the UT191T not E....sigh.

[@falkenvir]

Wait thats 20A Rated but with 11A fuse, that's just pure scam

[@KeepOnTesting]

It's definitely not a good thing ! I agree👍 , 20A rating- 20A fuse.

[@stovepipe9er]

I hate 9 volt batteries, I’d rather see aa or aaa

[@KeepOnTesting]

You and me both!😃

[@stovepipe9er]

Lol!

[@KeepOnTesting]

@@stovepipe9er 😅👍