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

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alins
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I am new here 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!

d_t_a
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alins wrote:
I am new here 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):
https://forum.avhzy.com/forum.php?mod=viewthread&tid=190

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.

~~~

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..

alins
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d_t_a wrote:
Just wondering what’s the difference between ZY1280 and ZY1280M?

See some additions to the “M” model described here:
https://www.aliexpress.com/i/4000850172606.html

Sillen
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Anyone used USB-C Riden TC66? banggood

d_t_a
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Sillen wrote:
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%...

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

Light Veteran
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CT3 or YZ1280M? Someone help?

Flashlight addicted

kaan
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Light Veteran wrote:
CT3 or YZ1280M? Someone help?

FL001

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kaan wrote:
Light Veteran wrote:
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

Flashlight addicted

xnode
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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:

Light Veteran
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xnode wrote:
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

Flashlight addicted

TimMc
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gtg465x
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d_t_a wrote:
alins wrote:
I am new here 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):
https://forum.avhzy.com/forum.php?mod=viewthread&tid=190

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.

~~~

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..

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.

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

Flashlight addicted

sam_sam_sam
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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

Soldering Slave

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sam_sam_sam wrote:
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

Anker

Flashlight addicted

TheIntruder
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Anyone have any experience with FNRISI testers?

I’ve entered the USB-C realm, and am looking for something suitable.

I’ve been happy with my UM25C, so a TC66 naturally became a candidate, also helped by relative dearth of testers with male C connectors, especially moderately-priced ones. I don’t require the capabilities of those in the $50-70 range, but do want something better than bare bones basic, and can detect protocols.

Came across the FNRISI FNC88, which is comparable to the TC66, but priced more like the TC64.

After seeing a comparison photo in an AX review, I’m also actually kind of disappointed that the TC66 has reverted back to the smaller form factor, and is tiny compared to the UM2x series, with a small display. If that is going to be the case, the cheaper, comparable option looks more attractive.

One review has found both have their share of bugs, but the FNC88 has the advantage handling PD 3.0, which is my priority going forward. Don’t really care about the proprietary protocols. Spending less now and upgrading to something else after the market matures further also seems like a better plan.

will34
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At $14 it Seems like a good deal since it has all of the important features to look for in a usb c meter: bidirectional reading, PD switch, manual protocol enabling and multiple groups for offline data logging. I don’t find protocol detection very relevant these days, not like a few years ago. Maybe because I don’t have any device that uses Samsung, huawei or alike brands with high current fast charging. Most of my fast charge devices are now PD.

My AVHzy just died on me after testing two 100W PD powerbank. That one wasn’t designed to handle bidirectional current and I guess that’s why it failed.

Apparently 19 hours from now there will be a winter sale bringing the price down to $12.8, I will be ordering one to try.

Lux-Perpetua
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Thanks for bringing the FNC88 to my attention, TheIntruder. Thumbs Up

I couldn't resist to ordering one for $ 12.80. I will probably use it in my next reviews of flashlights with USB-C port for testing PD charging and reverse charging ("powerbank mode").

TheIntruder
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Yeah, it’s cheap enough to take a chance, so I’m going to order one as well.

It has a few issues, but there’s nothing else in that price range that’s comparable, and so does the RD.

USB-C, and its implementation, have had bumps, and is a moving target, but I’m glad to have at least hobbyist-level tools available, for not a lot of dough.

Fescron
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TheIntruder wrote:
Yeah, it’s cheap enough to take a chance, so I’m going to order one as well.

It has a few issues, but there’s nothing else in that price range that’s comparable, and so does the RD.

USB-C, and its implementation, have had bumps, and is a moving target, but I’m glad to have at least hobbyist-level tools available, for not a lot of dough.

Oh that is a very interesting site, thanks for sharing!!

Lux-Perpetua
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Fescron wrote:
Oh that is a very interesting site, thanks for sharing!!
+1 Thumbs Up This is a good addition to HKJ's tests and reviews. Thanks a lot for letting us know.
TheIntruder
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Received my FNC88. Two weeks from order to delivery, so not too shabby. Had read lots of complaints about Newgistics/Pitney Bowes, but it passed through their hands quickly, and bypassing the USPS system, except for the last mile, was probably a good thing, with its current delays.

My unit has firmware v2.20, so the screens conform to those pictured in the manual, and not the older ones used in some of the sales material.

Everything seems to function correctly, and the while I still wish the display was larger, it’s more readable than I thought it would be, and not like the similarly sized, but awful monochrome displays found on the cheap “J7” style meters.

The power adapter I’m testing claims to be PD 3.0 spec, but not PPS. However, the FNC88 does report PD 3.0 and non-fixed voltage APDOs, so it might actually support PPS, but given the loosey-goosey nature of these types of electronics, that can only be considered a guess.

It does what I needed it to do, and given the price, I’m happy, as long as it doesn’t crap out within a short period. The price actually dropped down to $12 even after that winter sale ended, but that’s AX for ya.

will34
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Just got my FNIRSI FNB28 and FNC88. These meters are tiny! Agreed with what TheIntruder said, and to add:

For the price I probably shouldn’t be complaining ($10 and $12 respectively), but the build quality is really lacking. The PCB are thin and flexible, the male USB port was wobbly from the factory, the screen on the FNC88 isn’t installed straight and the screws on both meters appear to be torqued down by a 1 year old infant. Soldering job on the components seem ok, but they used the least amount of solder possible for the masks.

Although they seem to execute the functions well: PD trigger, bidirectional read, output volt select, protocol detection, data line sensing and offline 5 group storage, these are very light duty meters to casual testing chargers and devices. Definitely not on the same level as compared to a YZXstudio or AVZhy meter. I wouldn’t test a 3A load for extended periods of time. They also give you a very cheap feel because of the generic times new roman font, which I believe is the default english font for chinese OS and programming platforms.

Surprisingly, they ship these in their own case and then inside a foam box, better packed than 95% of the stuff I’ve bough overseas, and arrived extremely quick given the current circumstances.

I don’t recommend these for any serious testing task, but again you shouldn’t be spending $10 if you needed real testing equipment. But for most people I guess these work just fine, one of the worst things with PD is the charge rate uncertainty, I have a HP spectre 14” laptop that is really picky with the chargers and even detects when the charger has something else connected to it and reduces the charge rate. This small meter is perfect for that task.

TheIntruder
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I didn’t disassemble my example for examination, but on the surface, nothing is askew, or loose.

Nor I have handled one of the higher end meters, so I can’t compare their build quality, but I do find it ironic that none of them can be bothered with even a rudimentary case molding, when the cheapest meters do. At least that would alleviate some of the need to handle the bare-PCB style meters with kid gloves, regardless of price. More than once, my fingers have slipped and done an LCD mashing like kids do when curious. Look at the neat effect when pressing on the screen!

USB-C and PD are a can of worms, so it’s nice to at least have a cheap way to help sort it out.

gchart
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I picked up the FNB38 during the winter sale and it arrived a week or two ago. I’ll hopefully be able to put it through it’s paces soon.

d_t_a
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While looking for more info about the FNIRSI USB meters, I came across their webpage here, which has firmware and PDF manual for their various USB meters (plus some other measuring instruments).

http://www.fnirsi.cn/support

Looks like the FNB48 is their most advanced meter (seems to be the bigger brother of the FNB38).
FNC88 is their type-C meter
FNB28 is their basic meter but still has some features (like protocol detection)
and FNB18 is the very basic meter.

gchart
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I did a USB-PD charge overnight on a FireFlies with 2 amp USB-C charging. Monitored it with the FNISRI FNB38 and overall it went well, outside of my inexperience with these things.

The one thing I haven’t been able to figure out… getting data off of the thing. It’s got 5 data log slots, and there’s a USB-HID port for connecting to a computer and doing data transfer, but there’s absolutely no instructions on how to do so. It doesn’t show up as storage device, so that’s out. The “data transfer” option in settings is enabled. I was able to use FNIRSI’s firmware update tool to update to the latest firmware, so I know connectivity is working. I’m wondering if you need some specific piece of software that they don’t mention. Does anyone have experience with that?

Lux-Perpetua
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My FNIRSI FNC88 arrived yesterday. I bought it for $ 12.80 on AliExpress. So far, everything seems fine. The item was packed very well in styrofoam. I did not test all the functionalities yet but only attached it to my Astrolux charger. I will be using it for any upcoming reviews of flashlights with USB-C port.

 

  

  

 

djxpress
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Wondering which one is better
the power-Z KT001 or the Witrn X-MFI? I’ve read the X-MFI does autodetection of protocols, including MFI verification. Does the KT001 do this as well?

I can’t seem to get a Witrn X-MFI anywhere (ebay, Banggood, Aliexpress), all the sellers seem to have a listing, but none actually have it. The last seller emailed me to tell me the manufacturer he gets it from stopped making it.

From my limited knowledge, it seems like the Witrn one has the most features. All I want to do is to be able to autodetect QC 2.0, 3.0, 4.0, PD and MFI when I plug it into a USB charger to confirm what the charger claims.

sam_sam_sam
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I find that some usb tester have some issues one being that they are directional and if the gender is not correct and you hook up the way the connectors it might not read the current and some of them are flaky at best and not always wanting to turn on with out trying it several times to get it to turn on

Some USB C charger are not always completely honest about what they can negotiate different voltage values I have seen some that say that they can do nine volts but can some say that they can do 15 volts it only shows 12 volts

I have seen some battery packs that say that they can do different voltages and even them can not always do all the ones listed and some of them share the same port for charging and discharging the battery pack some ports are charging some ports are for power output only

Unfortunately it trial and error before you find ones that can do what is claimed I wish that this was not the case

Soldering Slave

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