Products > Test Equipment
Wrong DMM probes?
<< < (10/13) > >>
Fungus:

--- Quote from: 2N3055 on June 17, 2022, 09:19:11 pm ---You mean that Pomona makes probes for Brymen?  :-//

Pomona Electronics is a wholly-owned subsidiary of Fluke Corporation. There are no Fluke and Pomona test leads, they are all the same.

--- End quote ---

The more you know...
DaneLaw:
Aliexpress is a hit or miss,
been buying there many years as the prices are very attractive not least here from Denmark, with some of the highest prices on the globe..
Though the last year you were taxed +25% VAT on the Aliexpress listing-price with a notice (VAT included) as VAT is now mandatory when shipping to countries inside EU (from 1-6-2021) depending on your country.. it will adjust for the relevant VAT, as long as it is under 150 Euro.. above you need to declare it yourself., as then it ain't just VAT but also tax...but even with incl. VAT & shipping-prices that has raised drastically over the years.. - the Aliexpress prices are often many times cheaper then here, and many of the items you simply can't get here in Europe.

- but the integrity is also extremely low amongst many sellers on Aliexpress, and it's a shame as it really tarnishes it for the good stores, so take a look at their rating and if its a new store....
The aspect of scamming with other people's tracking has become.. quite common, at least in my experience.
And in a manner, so you think your parcel is underway' as the tracking will say, "it's heading for your destination" and then suddenly it will state "delivered" and you will be like "huh, what??" I haven't received anything - and then when contacting postal service for details.. you realize it's simply not your tracking and it's a tracking for somebody else in the other part of the country.
Asked some of my Chinese friends, and it seems they have some subforums, where they share "tracking numbers". and a given seller can simply go there and grab a tracking to your country from around the same period, and post that in Aliexpress, and then you as the buyer' will be hanging in no man's land for a month thinking your parcel is underway - and if your aint ajour & dispute it in that 2-week window from the parcel suddenly out of the blue says "delivered".. your pretty screw'ed, as then the dispute-option is off the table and you need to go thrue a lot of hassle, trying to find real Aliexpress support or your bank.
You need to be on your toes, buying from Aliexpress, but its a plus that PP seems to be an option, though not sure how they act on Aliexpress situations...

The only DMM probes I got from Aliexpress, were some cheap ones were some of the lower parts between the pointy end and handle, could double as banana plug, - though its many years back, and they were surprisingly decent with very flexible silicone-like leads and were like 5 dollars delivered and would gladly have purchased more, but that model was gone at that price... I saw them later under the name Glevee or Glegee, but at a way higher price.

It's these here below' attached to an old Korad 3003P PSU, that also came from Aliexpress (many years back) but here the Aliexpress seller was fantastic..as I'm pretty sure he had labeled his listing wrongly, as it said' "free shipping" as the only one listing these PSUs - and the Korad 3003P was like 60 to 65 USD, and also one of the lowest and likely down to its an 3.1A, but still a P-model (PC).. all other sellers listed shipping prices' that were way above their product-price itself, - likely down to' its a heavy fellow to ship a linear PSU across the globe, -
I reckon he had forgotten to put relevant shipping on his listing, also noted that the listing was gone the day after I had placed my order, and I was pretty confident he would cancel my order, - but nope it arrived from China very fast with no added VAT cost, and it seems the seller had cleared it all,.
So yeah' hit or miss buying from Aliexpress.
The below grey DMM is a no-name from Banggood, that they sold at 11.11USD to VIP5 customers on their 11-year birthday some years back.
boardview: https://tinyurl.com/scopedmm


--- End quote ---

--- End quote ---


--- End quote ---

--- End quote ---
Black Phoenix:

--- Quote from: DaneLaw on June 17, 2022, 10:35:17 pm ---Snip

--- End quote ---

Yes. I know that model of probe, easy to get in the Shenzhen Electronics Supermarket and Taobao.

They have two variants, one sold as Uni-T (and other manufacturers) by around 18RMB:


And different model sold by other Manufacturers:






AVGresponding:

--- Quote from: rsjsouza on June 17, 2022, 08:05:19 pm ---So, in summary: the OP's datapoint that his probes are crap because one of them does not fit on a jack invalidates the other three contrary datapoints from other people (including mine with the seller I bought, which I got from Fungus) because datapoints are all invalid. Then, two more people provide datapoints of Louis Vuitton probes say they are better, but these also must be discarded because datapoints are all invalid. Then a table that shows loose resistance datapoints between generic and Louis Vuitton probes is used to prove that all datapoints are invalid, but that also must be discarded because all datapoints are invalid.

Holy crap, AVG, you really need that beer, man. Peace.

--- End quote ---

Didn't think it would take long for someone to take the data and represent them out of context.

The AliX data are part of an overall pattern indicating a very random quality of goods received. The Fluke and Pomona data are effective outliers, contradicting the majority of data points (though it seems there are increasing numbers of them lately, it is unclear yet whether this is due to counterfeiting or, more troubling, falls in Fluke Corp. QC, or more likely both).

The Luis Vuitton analogy is not a good one imo; though there are parallels with badge premium and counterfeiting, Fluke traditionally are functionally superior, whereas Vuitton is a form superiority (if you are a fashionista).

To be clear, I am not saying "all stuff from AliX is trash". I am saying the quality is so variable and unpredictable that I choose to avoid the waste of my time, and I also dislike the ethos of buying so cheap it doesn't matter if you get a dud, just throw it away and buy another. Congratulations on your contribution to e-waste, trade deficit, carbon miles, and exploitive labour practices.



As to whether Pomona make Brymen leads, I thought I had read that somewhere, but can't remember where. Certainly I could easily be mistaken on this, and if anyone has firm knowledge on the subject I will be happy to stand corrected.

However, claiming that Pomona and Fluke leads have no differences is disingenuous. That's like claiming all Skodas and Audis are the same because there are some common parts, and they are part of the same corporation. Or Volkswagens and Seats, pick any two from the VAG corp.
Fungus:

--- Quote from: AVGresponding on June 18, 2022, 07:42:24 am ---The Luis Vuitton analogy is not a good one imo; though there are parallels with badge premium and counterfeiting, Fluke traditionally are functionally superior, whereas Vuitton is a form superiority (if you are a fashionista).

--- End quote ---

Vuitton do use good materials and have a lot of quality control.

Isn't that also one of the justifications for paying Fluke prices?
Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod