USB power meter/tester thread - YZXStudio, Power-Z, RDTech and more.

So how do yo datalog, using micro-USB interface?

Using the connector marked PC

Bough from your store on Aliexpress The HD35, and have a suggestion for you: the USB-C port is too much close to USB-A port, can’t connect any USB-C meter like TC66C directly to it, because touches the port. Could you please for future revisions put it more separated and with more angle so I can fit RD TC66C, Satechi USB-C or Plugable power meters? It would look something like this:

Original:

Request:

Same would apply to LD 35 and others. Some USB-C meter are quite wide:

Or you could use a small extender, like this:
https://www.amazon.com/Extender-Cellularize-Lifeproof-Otterbox-Nintendo/dp/B07MBWH7QG/ref=sr_1_3?dchild=1&keywords=usb+c+extender&qid=1601553850&sr=8-3

Extender may add some amount of resistance.

Some time before, I bought an adapter that allows interchanging with the various types of USB (mini-USB, micro-USB, lightning, etc). So I can try mixing and matching when testing some stuff. But when I do some measurements, they do add quite a fair bit of resistance (ie. current or voltage may not be that correct measurement anymore)… Although the adapter I used could have higher resistances…

Of course, even the meter will add a little bit of resistance. You can measure the extender resistance first with and then without it. But it would be great if you could connect directly from point A to point B.

The too close ports is something than happens even on computers. Old MacBooks 13” had way too close ports, and even in 17.3 MSI notebooks ports are close enough that if you connect USB-A meter on one port it already partially blocks the next one.

I am new here :slight_smile: and looking for a solid USB tester (for USB C and USB A chargers and cables). Two quick questions: where can one buy a genuine ZY1280M (seems like there are some fake ones floating around)? And also are there any comments on the AVHzY CT-3 (same as KT002 / YK001 / UT18) and how it may be better than/differ from ZY1280M?

Any other recommendations?

Thank you all!

Just wondering what’s the difference between ZY1280 and ZY1280M? I seem to recall reading a reference to a minor update to the ZY1280, but can’t exactly recall if it’s called ZY1280M and if there’s any notable difference. You can try AliExpress or Banggood or other online stores (I’m not familiar with Amazon stuff as I’m located in a different part where ordering from Amazon will be too expensive so I typically don’t browse stuff there).

~

AVHzy CT-3 appears to be a very recent model (as in released just a few short months ago), it’s mentioned here (I suppose there is also some purchase information in that message thread):

Based from previous research, the previous AVHzy CT-2 is also the same as the Power-Z KT001 or the Kotomi Pro/Premium.

Just did a little Google search, and it looks like the new CT-3 s also available as the Power-Z KT002, as you referred to, and also the YKLab Shizuku YK001 (I was not familiar with this name [I’m also interested in USB meters and often read about them], and also had to do a Google search — it looks like you’ve done a lot of research about these models already…)

Power-Z has several references to the KT-002:
http://www.power-z.cn/archives/category/course/kt002

YKLab also appears to have a basic website (looks unfinished, but manual page and firmware downloads page has some content)
https://yk-lab.org:666/index.php/category/product-en/

Regarding the “UT18” meter, this seems to be from HiDance/ATorch (which produces or resells many budget-oriented USB meters, some fairly acceptably good for their price). Casual search (just now) seems to show that it’s also similar to the CT-3.

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However, I’d like to point out one thing (I’m not sure if it would apply to the UT18…) — there is a HiDance/ATorch UD18, which appears to be a clone of the QWay (Witrn) Web-U2 USB meter. Judging from my readings, it would seem that the UD18 is an unauthorized clone of the Web-U2, and QWay/Witrn has blocked firmware updating of the UD18 clone (supposedly updating it to the latest QWay/Witrn Web-U2 firmware will brick the UD18 meter).

Now, this makes me wary of the UT18 meter, whether it’s an authorized copy of the CT-3/KT002/YK001 or it’s just a clone… Anyway just mentioning this…

See some additions to the “M” model described here:

Anyone used USB-C Riden TC66? banggood

It’s the exact same meter as the RD Tech TC66C reviewed by HKJ:

https://lygte-info.dk/review/USBmeter%20RD%20Tech%20USB%20Meter%20TC66C%20UK.html

RD = RuiDeng, which appears to be transliteration of the Chinese company name , but it looks like they modified the brand name slightly to “Riden” so it’s likely easier to pronounce for the English world.

RD Tech (RuiDeng) has an AliExpress store (I’ve bought several of their items before) — it appears they now also changed their store name to “RD Riden Factory Store”

https://rdtech.aliexpress.com/store/923042

CT3 or YZ1280M? Someone help?

FL001

I think is good but it is not have Lightening port, so I choose WITRN-X-MFI.
I hope it is a good product

Is there any USB cable/cord straightforward resistance meter? Would be awesome if had these kind of connections:

Output:

  • USB-C
  • USB-A

Input:

  • USB-A
  • USB-C
  • Apple Lightning
  • Micro-USB
  • Mini-USB

Sample informative video:

Nice test

An interesting blog with posts about USB cable and connector resistance:

I think YK-Lab is the actual manufacturer. They call theirs the Shizuku by YK-Lab, and the outer case says Shizuku on it. I just bought the AVHzY CT-3, and if I look inside, the circuit board says Shizuku on it, and you can also see that in a picture of the UT18 on AliExpress. Also, the PC software and firmware are labeled as Shizuku, and AVHzY even has a couple links to yklab.org. I updated the firmware of my CT-3 using the software from yklab.org and it worked with no issues. I also found that in one of the information screens on the device that it lists AVHzY as the customizer, and their name appears in several other places within the software, so I think AVHzY, Power-Z, and ATorch are officially working with YK-Lab to sell customized versions.

Today is arrived WITRN X MFI…
Anyone knows if i can upgrade the Firmware?

Can anyone recommend a good USB -C charge for IPad gen 8 ( not an Apple product )

Would like to use it for Apple devices and Android devices and non brand name devices

Can anyone recommend a good USB - C battery pack that has a USB - C
output ( not a combination input / output )

Thanks