Comments on: Fixing A Defect But Brand New UNI-T Tweezer Tester

By: Albert van Bemmelen

Albert van Bemmelen — Thu, 07 May 2026 04:23:32 +0000

Oops I was talking about the more expensive UT116A of course and not the C version of this Uni-T tweezer tester!

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By: Albert van Bemmelen

Albert van Bemmelen — Tue, 05 May 2026 13:07:32 +0000

Update April 2026: Sadly this time the UT116C tweezer tester is defect again which is caused by the unexpectedly no longer making contact copper BAT- contact. Therefore the battery spring contact no longer was coonecting to the tester board.
And to make it worse also the select function no longer worked after that was fixed. And it was not the pushbutton but probably another reason like maybe a now gone bad ES 51925A processor.
Why I sure am glad that I recently bought a brandnew much better designed and made working Fnirsi LCR-T2 tweezer tester. That even uses a bright color display and has much more options too! So take my advice and better do not buy this bad manufactured Uni-T brand and select Fnirsi products instead!

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By: Albert van Bemmelen

Albert van Bemmelen — Wed, 21 Jun 2023 10:24:52 +0000

In reply to Albert van Bemmelen.

After the 20 new 3 position slider switches finally arrived on 21 June 2023, and one was used to replaced my broken slider switch, my Uni-T 116A tweezer tester was like a brandnew meter again!
And it turned out that the 3mm long shaft sliders indeed were the right replacement switches! So luckily there was no need to shorten the shaft by cutting it to make it fit at all!

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By: Albert van Bemmelen

Albert van Bemmelen — Tue, 30 May 2023 17:07:12 +0000

In reply to Albert van Bemmelen.

I probably should have written 'making it shorter' instead of saying 'shorting it' if that meant something else? It is as they say: most things get lost in translation. (also a movie 2003 with Scarlett Johansson and Bill Murray... lol)

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By: Albert van Bemmelen

Albert van Bemmelen — Tue, 30 May 2023 11:32:56 +0000

In reply to Maurizio.

I bought the 3mm height knob slidehandle not knowing how high the original white broken off plastic handle was (it was gone and sadly couldn't be found). Shorting a bit too high plastic holder however is easy. Making the plastic knob holder higher if its height is too short is close to impossible.

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By: Maurizio

Maurizio — Mon, 29 May 2023 20:17:52 +0000

Very interesting post of yours, thanks. And sorry to read that Uni-T has lowered the quality of its components. However it is not clear to me which switch you have eventually purchased. In fact, from the Figure of the web page on AE it seems you have chosen that with 3 mm handle height, but in the Figure with sizes, a 1.5 mm handle has been necessary. I would like you could clarify this detail. Thanks

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By: Albert van Bemmelen

Albert van Bemmelen — Mon, 29 May 2023 05:57:21 +0000

In reply to Waleed Rishmawi.

Understood, my shopowner friend paid with about 700 euro/dollar much more for his heat detection camera at that time. He apparently used it several times successfully to locate and fix Apple computer mainboard issues but probably not enough to compensate for the high purchase price of that camera.

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By: Waleed Rishmawi

Waleed Rishmawi — Sun, 28 May 2023 18:04:08 +0000

In reply to Albert van Bemmelen.

I recently bought a thermal camera from the same company about 300 USA dollars and it is worth having.

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By: Albert van Bemmelen

Albert van Bemmelen — Sun, 28 May 2023 06:09:06 +0000

In reply to Yogesh Panchal.

I'm glad that it was still easily fixable Yogesh!
Worst thing that can happen to a repair engineer is that a brandnew bought tool already is partly or completely defect at arrival.

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By: Albert van Bemmelen

Albert van Bemmelen — Sun, 28 May 2023 05:57:07 +0000

In reply to Imoudu.O.

I guess seeing what tough looking meter you had bought that it was an internal issue that needed fixing Imoudu? Sorry to hear that but glad that you still were able to fix it.
Let's hope that my other tough looking True-RMS UNI-T UT890C 6000 count DMM does not also give any such problem in the near future too!
Apparently there are more sellers that use the Uni-T name in their online shopname.

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