New Zoyi multimeter+oscilloscopes - ZT-70xS, up to 50MHz/250MSps (nov 2022)

[Randy222]

I see zoyi site only has the older v139 download. Where are the newer ones?

[xKertx]

I see zoyi site only has the older v139 download. Where are the newer ones?

Zotektools site has V157
https://zotektools.com/products/triple-in-one-instrument-combining-oscilloscope-multimeter-and-signal-source/

[Phb]

Why are you talking about the new version 1.6.3? The official website still has version 1.5.7.

Here is: http://www.szzotek.com/h-col-159.html

Strangely, I get this from the link..... which I know used to work some weeks ago....

[indman]

Strangely, I get this from the link..... which I know used to work some weeks ago....

This link is still working fine, I just checked.

[lchao]

Strangely, I get this from the link..... which I know used to work some weeks ago....

It's a browser issue. Happened to me as well. Clear all cookies and browsing history and try again or use a different browser. Strangely enough it was not working for me even in incognito window until I've cleaned-up everything. My browser was Chrome.
Address should be this: http://www.szzotek.com/h-col-159.html
On your screenshot the address is slightly different.

[Phb]

It's a browser issue. Happened to me as well.

On your screenshot the address is slightly different.

Thank you. You were spot on .  And indeed, mine was Chrome too.
Sorry for asking you on "helpdesk" issues.

I did try messing wif the address, because I noticed it was different... but it kept changing back to what you saw. I did not stop to think it was looking up local browing data.

Anyways, Thanks again.

[4lfre1re]

It's a browser issue. Happened to me as well.

On your screenshot the address is slightly different.

Thank you. You were spot on .  And indeed, mine was Chrome too.
Sorry for asking you on "helpdesk" issues.

I did try messing wif the address, because I noticed it was different... but it kept changing back to what you saw. I did not stop to think it was looking up local browing data.

Anyways, Thanks again.

Try to open link with Mullvad browser... https://mullvad.net/en/browser
I use Vivaldi, but sometimes link work and sometimes don't work... I think that is because they are using http instead https...

Regards... ;-)

[beamertt]

I think this is the "official" Zoyi page where there is a new V163 for the ZS-703S:
https://zotektools.com/oscilloscope-multimeter/ 

[Edmiri]

Is there any changelog?

[beamertt]

Nope, I couldn't find the change log for V163, it still had the old V156 to V157 changelog...

[tzok]

After updating to V1.6.2 it keeps rebooting while taking a screenshot. The saved image is corrupted; only ~2/3 of the screen is saved. I've tried restoring default settings and formatting internal memory via the format option in the imgView APP.

[beamertt]

Maybe for you V163 solves your issue.
I went back from V157 to V156 and I'm aware of the quirks in this release. Because I found my way around these issues I prefer to wait a bit until I see in the change log what is fixed with V163 before I take the plunge and do the upgrade I think

[SammysHP]

I got V164 from Zoyi and screenshots are working with it. Unfortunately it still suffers from wrong sine interpolation in 10 and 25ns as described in post #1344 and the usual trigger problems.

[beamertt]

Hmm, I loaded V163 and that one still has the reboot issue when taking a screenshot.
The triggering improved some but still has issues. And the Runmode High makes sinewaves above approx 25Mhz really unstable...
 
@SammysHP, from which site did you download V164?
The page I downloaded from still only has V163.

[SammysHP]

@SammysHP, from which site did you download V164?
The page I downloaded from still only has V163.

I've been in direct contact with Zoyi for half a year, testing and reviewing their devices. I reported most of the issues collected here, as well as many more that I discovered during testing.

https://www.sammyshp.de/betablog/tag/zoyi

The V164 firmware isn't released yet, but it looks like it only fixes the screenshot issue and nothing else compared to V163.

[mebel]

@SammysHP, from which site did you download V164?
The page I downloaded from still only has V163.

I've been in direct contact with Zoyi for half a year, testing and reviewing their devices. I reported most of the issues collected here, as well as many more that I discovered during testing.

https://www.sammyshp.de/betablog/tag/zoyi

The V164 firmware isn't released yet, but it looks like it only fixes the screenshot issue and nothing else compared to V163.

Do you know why Zotek can't fix these basic, known-from-the-beginning flaws? Is it a hardware or human problem?

[SammysHP]

Do you know why Zotek can't fix these basic, known-from-the-beginning flaws? Is it a hardware or human problem?

Not really, communication is difficult. I guess it's just how they work, the size of the team and their priorities. I'm not sure what priorities they have, but I think they do a lot of OEM stuff and their "own" models are more of a byproduct. With the right expectation, most of their devices are quite ok, sometimes with one or more annoying flaws, like the triggering, some artifacts and the battery charging issue of this model. I wish they would open-source their firmware to allow other developers to fix their mistakes, but that would be extremely unlikely.

[chaoslegion]

The V164 firmware: https://zotektools.com/products/triple-in-one-instrument-combining-oscilloscope-multimeter-and-signal-source/

[beamertt]

I loaded V164 and at least the screenshot issue is fixed.
Triggering still not perfect and runmode High is gives still very unstable traces at frequencies above say 20MHz or so (I didn't check very well yet)
Kind of weird that if you step down in frequency then at some point it goes from very unstable to suddenly back to stable.

[lchao]

The V164 firmware: https://zotektools.com/products/triple-in-one-instrument-combining-oscilloscope-multimeter-and-signal-source/

Release notes says: Fixed the issue of automatic restart after saving waveforms in V1.6.3.
Source: http://www.szzotek.com/h-col-159.html -> ZT-703S firmware upgrade V1.6.4, 2025, 10.28.7z

[tol]

Release notes says: Fixed the issue of automatic restart after saving waveforms in V1.6.3.

It's just my IMHO, but it feels like the latest versions have more lagging than the initial 1.3-1.4 versions. But it's just how I feel, I didn't make any tests.

[cncjerry]

This meter has become my go-to for repair work.  I wanted a hand-held, ordered a Siglent SHS820X and couldn't believe how big it was when it arrived.  I had ordered the Zoyi 703 at the same time.  Anyway, the SHS820 stays in the nicely padded bag while the 703 sits on my desk.  It's very accurate after having it a few months now and though sometimes the triggering is faulty, you can still see if data is there, clocks and oscillators, etc.   I wish there was a significantly better meter in the same form factor for say, $300?

[Edmiri]

OWON HDS2202S

[Faeren]

Is there any consensus as to the "best" firmware version to use before SHTF? I'm on v153 and haven't ran into any issues, I'm aware v156 is where the wheels started to fall off, not sure if it's worth installing a newer version.

This meter has become my go-to for repair work.  I wanted a hand-held, ordered a Siglent SHS820X and couldn't believe how big it was when it arrived.  I had ordered the Zoyi 703 at the same time.  Anyway, the SHS820 stays in the nicely padded bag while the 703 sits on my desk.  It's very accurate after having it a few months now and though sometimes the triggering is faulty, you can still see if data is there, clocks and oscillators, etc.   I wish there was a significantly better meter in the same form factor for say, $300?

I also looked into this and concluded you basically can't get a better Scopemeter than the Zoyi with the same svelte figure. The OWON HDS series can provide a very significant bump in specs at the higher end but it is notably chunkier (and more expensive). You can basically put the Zoyi in your pocket but the OWON is a brick. I look forward to future developments in the budget-friendly multimeter-sized Scopemeter market.

[selevo]

Is there any way to fix the nasty red colors after voltages above 220 volts?
 + I'd like to remove the constant red background on up.

I don't understand why they did this? Is the device for children?
Or for people with very low intelligence?
This has significantly reduced the quality of the device, which is already far from perfect without this cheap Chinese fetish.



I didn't order background and font coloring!!!
I often work with high voltage. Do I have to constantly see this horror??

I used the search function on the topic, but I'm tired of reading... Sorry.


Suggestions...
I'd like to see an oscilloscope option switch to the voltmeter probes in the new versions.
It looks really strange to have separate inputs and not be able to see both at the same time.