TA-0390: Zotek ZOYI ZT-703S Scope Multimeter 2ch 50 Mhz - Review

Testing the DMM, Scope, XY mode, Generator, Firmware upgrate.
Our official website for updating firmware: www.zotektools.com
Related items:
DMM Scope Zoyi ZT-703S : go.tonyalbus.com/ZT703S
DMM Scope Zoyi ZT-703S : go.tonyalbus.com/ZT703S_2
PT:
pt.aliexpress.com/item/100500...
ES:
s.click.aliexpress.com/e/_DBu...
US:
s.click.aliexpress.com/e/_Dnp...
Volt/Current Pro LB02A go.tonyalbus.com/LB02A_A
RG316 Cable BNC-BNC go.tonyalbus.com/316BB_A
RG316 Cable SMA-BNC go.tonyalbus.com/316sb_A
50_Ohms-BNC go.tonyalbus.com/50A
DMMcheckPlus go.tonyalbus.com/DMMcheckPlus
Volt/Cur FNIRSI SG003A go.tonyalbus.com/SG003A_Ali
Voltage/Current LB02G go.tonyalbus.com/LB02G_A
QuixxPlasicPolish go.tonyalbus.com/QuixxPlasicP...
PolyWatchPolish go.tonyalbus.com/PolyWatchPolish
LCR standard go.tonyalbus.com/LCRref_A
CR standard go.tonyalbus.com/CRref_Ali
Related Videos:
Zotek ZOYI ZT-702S : • TA-0372: Zotek ZOYI ZT...
#zoyi #zotek #zt703s

[@bilalkoroglu8300]

I'm using the 702 S and I'm happy with it, thank you Tony for the info.

[@TonyAlbus]

Thanks! Yes below 10 MHz the 702s is great too.

[@guateque1718]

Thank you very much for this prereview review.

[@TonyAlbus]

Welcome and thank you for the comment

[@jabbalechat7910]

Thanks for the review Tony. I've ordered one of these from Alibaba and await its arrival with interest...

[@TonyAlbus]

Thank you for your comment, yes they are very nice, i hope it arrives fast.

[@PG-ji6vq]

In my head I bought a 46Mhz scope meter, and it’s remarkable for the money..

[@TonyAlbus]

Yes 100% agree! thanks

[@johndevires5911]

Nice one, thank you Tony. 👍 I got the DSO-3D12 just recently, also not bad for a little bench "all-in-1" tester, can not complain for £80.

[@TonyAlbus]

Good to hear, yes they make nice stuff nowa days

[@johnwest7993]

Thanks Tony.

[@TonyAlbus]

Welcome John!

[@user-oj2rz2wu4x]

شكرآ جزيلا لحضرتك استفدت كثيرا من حلقة A620 وقمت بشراءة خالص التحية للعرض الشيق للحلقة والامانة العلمية تلميذك

[@TonyAlbus]

Thank you very much, thank you for watching and your comment.

[@Petertronic]

Impressive - I was expecting it to be double the price of the 10Mhz model, but it is just $10 or $20 more? I have only had my 702S for 5 minutes and it's now out of date! I like the larger screen and the image viewer for screenshots, and the signal generator is not bad. My one also has a stiff BNC so I am pleased they fixed that too. I'd love to see a teardown and see the PCB compared with the 10Mhz one. Also the current draw on the battery. 👍

[@topeye4202]

I feel with you, have my 702s for 5 days.... : /

[@TonyAlbus]

Thanks! , yes i think a teardown needs to be coming too.

[@Radiotechnik]

Interesting instrument😀

[@TonyAlbus]

I think so too! Thank you

[@TheGmr140]

Looks like a nice scope 😊😊

[@TonyAlbus]

Thanks!

[@davidv1289]

Thank you for the review, Tony. It is amazing how many features they can cram into these devices. It looked to me like the upper frequency limit of the scope was a triggering issue rather than a bandwidth issue. As you said, the displayed amplitude did not drop significantly between 47 and 48 MHz. Are there any trigger modes other than auto? - if so it might be interesting to experiment with them. Regards, David

[@TonyAlbus]

Thanks David!, yes i did think of that, but it was not just unsyncing, is was jumping like crazy too.. but indeed i need to try to be sure, i did not do that. yes good experiment for sure.

[@rogerrynearson2500]

Thank you, excellent video. I got the 702S from Amazon and while researching for issues like counterfeit units, etc. I found out about the 703S and AliExpress was the only place that had them for sale. Can you back up firmware updates until the next firmware after problems are fixed. This is going to make my learning and using Arduino much more enjoyable retirement activity. Been in electronics since 1972, 10 years earlier if you count me taking apart anything electrical/electronics, my Dad did not enjoy that. I impersonated an electronics technician, engineering lab technician, computer support specialist and other duties at a Defense contractor for 25 years, all started with taking apart my Dad's kitchen alarm clock radio and fixing it. He noticed it mysteriously worked again. Same on the TV, I waited for him to go to work, I marked all the tunes positions, removed them, rode my bike to the tube tester at the Rexall Drug store, bought the needed tube that was bad. Just remember to put some dust or dirt on the new tube so your Dad doesn't notice. He knew I fixed the clock radio too but didn't like either. He was Mr. Cautious thinking I'd get electrocuted and take down the power station and be shamed by the neighbors. Thanks again.

[@LockdownElectronics]

Looks good...

[@TonyAlbus]

Thanks Bill, yes not bad at all.

[@ssalient]

In fact there is no extra digit, one is in V range and the other one in mV :)

[@TonyAlbus]

25000 and 10000 both 4.x. yes :))

[@cannapolis9009]

I just got 703s, using to troubleshoot MACBOOK charging problem. Happy so far. The 703s MENU has a "More APPs" selection; do you know of any that can be loaded? Maybe a 'mirror display to PC'? Because the device does have folders besides "Firmware". ZoTek has nothing I can find. Thanks

[@TonyAlbus]

That is prob. for future.

[@user-ep7lh6tp1d]

Thanks for your help and I

[@TonyAlbus]

It's my pleasure

[@0nyxghost]

I watched to see how crappy this was, and yes, you pointed out that the Owon hand-held oscilloscope was much better. The function generator is not good enough to add a BNC connector. Only 1x 16850 battery and the specs are not detailed fully like compareble test equipment. Maybe the price is good but better not to waste it if a little more get you a much better functioning and usable device. I might sound a little biased as I own an Owon HDS2202S. 3 BNC and more user-friendly operating experience. Thanks for showing us the Zoyi.

[@TonyAlbus]

Yes the HDS is better and also more expensive, it may be not a surprize you get what you pay for.

[@pascalgehdudrauf5134]

Any "bang for the buck" recommendations? Thanks in advance.

[@TonyAlbus]

@@pascalgehdudrauf5134 Yes this one.

[@user-zu8oh7dt9b]

Thanks for your

[@TonyAlbus]

Thank you!

[@modrobert]

Is the 703s signal generator good enough to calibrate the probes at 1khz square wave? (Assuming based on the connector this is the main purpose.)

[@TonyAlbus]

Yes correct, for that use its good enough

[@MarcelHuguenin]

Hey Tony! Bedankt voor de review. Misschien als ik in een gekke bui ben koop ik deze er ook nog wel bij. Weet je of ik voor de 702 nog mijn firmware kan upgraden zodat ie ook de mode vasthoudt na uitschakelen?

[@TonyAlbus]

Thanks, ja je kan hier je firmware downloaden, in het laatste stukje video kan je ook zoen hoe, ook voor die van jou Our official website for updating firmware: www.zotektools.com

[@MarcelHuguenin]

@@TonyAlbus Succes! Nu 1.03.58 (pas na 5e keer proberen) en Mode blijft staan.

[@TonyAlbus]

@@MarcelHuguenin Yeah!! perfect!

[@Stinktierchen]

You should donate more money to Ukraine otherwise you are a very very very bad human being. And of course we dont want that.

[@robinsattahip2376]

Don't know why, I have 3 real oscilloscopes and a bunch of multimeters, but I had to have one of those. It's a toy for big boys but amazing they can build and deliver that for the $62 I paid.

[@TonyAlbus]

Yes you need one :) welcome to the TEA club.

[@SDRSearch]

Hi Tony, you didn't show the main thing for me. Whether or not this device will be able to show the sine wave of its generator with its oscilloscope, precisely while the frequency of the internal generator is changing. To set up the resonant circuits, I need to look through the oscilloscope window, and at the same time change the frequency of the generator, all this must happen simultaneously. It seemed to me that if it is possible to reduce the size of the generator window when the oscilloscope is turned on, I might try to check this. Is this device suitable for this? 73! UR7CQ

[@TonyAlbus]

Good point, i have read already it can not do that. also don't ecspect to much of the generator as mentioned in the video. for that the Owon from an earlyer video is much better, but also 3x the price.

[@SDRSearch]

@@TonyAlbus Thank you

[@AlexAwwesome]

О, Галустян ! 🙃

[@TonyAlbus]

Thanks!

[@falcon02012]

Tony Do you think the Owon HDS272 is better compared to the 703s? If so, how?

[@TonyAlbus]

Hi, yes the Owon is better, its also a higher priceclass. i have the HDS272 myself and is very good. must be in one of my videos

[@shaolin95]

The owon lacks precision and some other quirks. I returned mine and prefer this 703s personally

Merhaba. Aneng AOS02 kullanıyorum. Acaba zoyi zt-702s güncellemesini yüklesem sorun olurmu. Bunu deneyen varmı.

[@TonyAlbus]

I have not heared from anyone that brave yet. maybe anyone can share?

[@Aleksey-vd9oc]

the zeeweii dso2512G is definitely better as an oscilloscope for ~$70...80, ADC 250Ms versus 110-120 for this ZT-703s

[@TonyAlbus]

Prices clearly deffer per region. i pay 80 for the ZT703s and 100 for the DSO2512G , and it has no multimeter.

[@Aleksey-vd9oc]

​@@TonyAlbusdso2512g have the scope, but zt-703 have 1/2 scope 😅

[@Razvan_N]

No temperature reading on this one?... :(

[@TonyAlbus]

i don't think so if i remeber correct, i think i mention something in the video

[@user-oz3sm4bv2r]

Who is the better zoyi zt703s or fnirsi 2c23t ?

[@TonyAlbus]

The Fnishi is 10 MHz 50 Ms/s ... Zoyi 703s 50 MHz 280 Ms/s.. but i do not have this 2c23T .. i had once a FNISHI and that was my last, never again.

[@user-oz3sm4bv2r]

@@TonyAlbus so the zt703s is better than fnirsi

[@TonyAlbus]

@@user-oz3sm4bv2r Yes i would think so

[@adamdavies163]

@@TonyAlbus FNISHI (FINISHI), deliberate mistype? 😉

[@TonyAlbus]

@@adamdavies163 Its just a terrible name to pronaunce and to write and i am a dislectic on top of that :)

[@zdzisiek1979]

👍

[@TonyAlbus]

Thank you!

[@mp1454]

😮😊🙏🏻👍🏻👍🏻👍🏻👍🏻👍🏻

[@TonyAlbus]

Thank you!

[@barrybogart5436]

Well I already have the Owon 72, and the 702S.... So I might have to stop watching your channel! I can't afford so much progress. Hi Hi.

[@tech29X]

With all that money spent, you could have bought a proper scope like DHO800.

[@Stinktierchen]

@@tech29X It still costs around 400€ for the 2 channel 70Mhz version. So... its a nice scope but not really cheap.

[@tech29X]

@@Stinktierchen $299 over here, but we pay far more through the nose for other essentials like healthcare insurance. So, I'd say 400EU still a bargain. ;-)

[@barrybogart5436]

I was going for portability. I do have an old 100mHz HP CRO.@@tech29X

[@TonyAlbus]

Sorry! :))

does it catch short pulse at low frequency like Owon HDS242S? I did the test on: kzbin.info/www/bejne/eqG8ept8adOjfpo

[@TonyAlbus]

Not sure it can, that owon does it very well i see. its something i need to try. thanks!

[@ciocrazvan9388]

Nice hungarian video! I understood NOTHING!!!

[@VASGENR6DJF]

Very nice 👍. Subscribe. Ham radio good. 73!!!

[@TonyAlbus]

Thank you! 73

[@btasler]

If you are probing 50 mhz, you probably aren't going to be using a $125 anything. I've been at this well over 40 years and with rare exception, there is no need to be measuring up there, especially at the hobbyist level. Anyone pro will likely have active probes which cost 10 times what this costs plugged into a scope that costs 100 times what this costs. If you are doing that kind of work, you aren't shopping for $125 meters.

[@TonyAlbus]

Yes maybe correct, but when they claim 50 MHz i like to check if it can. in the end its not a bad scope especialy for the price

[@hyperx-pc9766]

Hi,I've been watching your content for a while and i wanna thank you for your valuable content. I have a question that I hope you can answer. We were asked to create a project that consists of a transmitter and receiver that works on the 5G network system. I will be grateful if I could contact you to inquire about some matters.

[@TonyAlbus]

Thank you so much! Sorry to say i have no time for projects, i have a fulltime job and this is in my free time. Also i am not familliar with 5G other than my phone is using it. i appriciate you asking me sir!.