ZOYI ZT-702S Multimeter + Oscilloscope Review & Teardown!
Вставка
- Опубліковано 9 чер 2023
- #ZOYI #multimeter #bestreviews
🌐 ZOYI ZT-702S Multimeter + Oscilloscope is a
🌟🌟🌟🌟🌟 test instrument with unrivaled performance , usability and affordability!! With a gorgeous IPS Color display and ZIPPY PERFORMANCE you'll definitely want to add this one to your collection !
🌟 ☕️ 🌟 Buy me a coffee ? www.buymeacoffe...
It really helps! Thanks!
szzotek.m.en.a...
www.aliexpress...
www.amazon.com...
www.temu.com/z...
www.temu.com/z...
www.temu.com/z...
www.jumia.com....
www.lazada.com...
Music from #Uppbeat (free for Creators!):
uppbeat.io/t/a...
License code: I0KAAVDGOZV0DDGD
Music from #Uppbeat (free for Creators!):
uppbeat.io/t/a...
License code: XQBMILTY4FX2VEYD
Music from #Uppbeat (free for Creators!):
uppbeat.io/t/p...
License code: DIUWXBOIINMAR97C
Music from #Uppbeat (free for Creators!):
uppbeat.io/t/a...
License code: 4S8PBD4HPZVULBOD
Music from #Uppbeat (free for Creators!):
uppbeat.io/t/a...
License code: XH6YLAEWCWIZ1KAI
Music from #Uppbeat (free for Creators!):
uppbeat.io/t/m...
License code: U3SRVKUFEBGV2NR9
Music from #Uppbeat (free for Creators!):
uppbeat.io/t/k...
License code: A5TJNYRHZSP7NCZR
💢TOP 10 CHEAP-O MULTIMETERS💢
A=AUTORANGING M= MANUAL S= SMART P=POCKETMETER
4/14/2023
Support the channel and buy your next Multimeter or Test equipment from my online store! www.amazon.ca/...
1: KAIWEETS HT118E A
2: UNI-T UT39E+ M Purchase Link: amzn.to/3018EXN
3: ANENG 620A A Purchase Link: amzn.to/3wjnTXX
4:BTMETER BT770N M Purchase Link:amzn.to/3bFLSHt
5:KAIWEETS ST600Y S/M/A Purchase Link:kaiweets.com?sca_ref=1662669.hYtJSfyRij
6:UNI-T UT123D S 7 Link: amzn.to/3oBfuO6
7:INFURIDER YF-36K A Purchase Link: amzn.to/35DExJc
8: KAIWEETS KM-601 kaiweets.com?sca_ref=1662669.hYtJSfyRij
9:ZOTEK ZT-980 💥 Mo
10:HABOTEST HT108L A
THE❤ BEST❤ CHEAP Test leads, Grab them here:rover.ebay.com...
💥5V/10V Precision Voltage Reference💥(as used in my Reviews, professionally engineered by Fred Chu)
rover.ebay.com...
Japanese Precision Micro Screwdriver Set 3 Piece:rover.ebay.com...
stand, check out his video:
www.youtube.co... - Наука та технологія
Big bow for the honored 5 stars! Thank you sooooooooooo much ! Well done, Darren! 🥰Please receive my 5 stars to you ! 🌟🌟🌟🌟🌟
Thank-you ZOTEK! Excellent job on designing such an incredibly versatile and exceptional test instrument! A well deserved 5 STARS! 😊
Would be great to add an inductance meter feature in it.
Please ship me the upgraded Zotek 703S for another review..
There it is: The go-to DMM and Oszilloscope for (but not only for) beginners! Awesome! The manufacturer does simply everything right. It wouldn´t wonder me, if this device reaches the popularity (and sale counts) as the original Uni-T UT61E. And this would be well earned...
Good comparison ProBang..I think the 702S definitely has the potential to be a very big hit in the multimeter arena..it's certainly deserving 👏
Wow. Unbelievable value and innovation! If only I needed an oscilloscope. Thanks for the great review.
Awesome! Thx Eric 👍 It's one sweet meter!
Great review, I was waiting for it and you delivered, thank you very much.
Thx André ! 👍
Really like this 2 in one. A DMM and Oscilloscope. I like to use this in my hobby of installing car Audio. One thing I notice is the over range issue. In car audio we are looking for non-clipping signal and a over range reading can mislead one.
Yes over range can be an issue ..it's still a new meter so hopefully a revision of the firmware will solve that in the next iteration.
Thank you for taking the time for this video ! I have just ordered one from Amazon!
Hope you enjoy it! Let us know how you like the new ZOTEK/ZOYI when it arrives 😀
I bought one based on Dave's review. He was unusually noncritical. I already have an Owon. So far I really like it for 1/3 the price. But so far, after some component tests, I have been using it with an HT antenna, watching the output from my transceiver and looking at RF from other sources. Although it is 10kHz it accurately displays the frequency up to at least 20mHz, so can be used as a counter. It is a pretty good HF RF monitor. I'll be checking the voltage and current accuracy later. I still have the Aneng SZ-20 to test! Too many DMMs.
There IS a REL. On the on/off button.
I think you'll be impressed by its accuracy..so far its been a real trooper !
Wow 5 Stars. Good review. I bought it because of your review. You gave me the meter fever.
Awesome sauce! That meter fever will be a whole lot better with this on your bench my friend! Let us know how you like it ! 😊👍
Canada Post delivered mine yesterday.... looking forward to trying it out. Keep up the great videos.
Thx Don..enjoy the awesome meter !
Which reminds me, CP in BC has held my $18 USB voltmeter in Customs for over a month! WTF?
always been a big fan of Zotek, glad to see them getting some more love here Darren
Roger that Seán.. well deserved too 👍
Great 👍 job as always
Have you seen the big brother, Zoyi ZT-703S not sure if it is released yet
Hi John ..not in person but looking forward to that one as well ! 😀
Excellent!
Even tho I am a Fluke meter guy, if this was available 30 years ago, I would have bought
this over the one of the Fluke meters I bought back then!
Having a portable scope for use in installation/troubleshooting purposes is invaluable!
If you are worried about battery charge, carry a power pack, just in case, and plug it in when not in use!
Right on Jeffrey! Even today it makes the perfect Fluke companion 😊👍
@@KeepOnTesting I have a Fluke 117 meter and this Zoyi scope meter. Honestly these two meters are the only two multimeters most people would ever need. Use the.Fluke for high energy high voltage work and the Zoyi for low voltage precision bench electronics work.
@@robc8468 So true Jeff! That sounds like the perfect combination! As you say..with those two meters you can test/troubleshoot just about anything!
@@robc8468Just remember that Fluke 117 is only CAT III not CAT IV and rated at 600V not the 1000V CAT III rating.
Hello Darren. Haven't been on in a while, life changes every week...
Thanks for the review. This device, like its brother OWON, is a very good device. For the price of $65 we have hybrid circuitry and a good set of instructions. For beginners and advanced electronics engineers, this is a very good device. There are friends who use these on the road. In our country, a lot of people earn money repairing equipment, car repairs in their garage. And such a device makes their life easier. Its accuracy is confident, even with an increase in frequency, it remains at a good level.
Of course, you can find flaws in this device, but the price covers them.
It was possible to expand the information content of the scale by the limit, by overload. You forgot to mention the REL function.
In general, I agree with the rating 5 out of 5))
Yes my friend! A well constructed and programmed multimeter and oscilloscope at a very fair price ! I didn't see the REL was on the power button during my initial review..not the best location but it does have a REL. ! It's an excellent tool and worth those 5 stars ! 😃
Good review. The only problem I found that there is no overflow indication in scope mode, all values are trimmed to maximum range values
Agreed..it certainly isn't perfect but withsone tweaks to the OS it really could be !
I'd love to see one of these devices be truly integrated... use the DMM probes for everything, current waveforms, etc.... Even if it was low spec, if done well it would be a really useful tool. This just looks like my ZT-Y with a ds0-138 smushed in. Nice screen tho....
I hope that's the next step...it would really be a nice way to improve an already awesome meter 👍
@@KeepOnTesting There are several earlier models from a different manufacturer, but they are all 1 MHz.
И после продолжительных поисков информации о характеристиках, внутреннем строении, концепции разработчиков, и отзывов пользователей, я куп-и-и-и-и-и-и-и-л этот прибор и скоро он приедет ко мне по почте.
Отличный! Дайте нам знать, как вам нравится счетчик!
Just received mine today so haven't had much time to put it to good use. I did try... yes try, to use it outdoors to diagnose an automobile electrical issue. The display is definitely not for outdoor (daylight) use. Also, the plastic feels pretty cheap to me. Other than that I like it so far.
Hi Tony..thx for the feedback. I think the more you use this the more you'll see what a terrific value it is! 😀
Thanks for the review 🙂 have a good one my friend 👋🙂 by the way here’s the tissue at 4:52 🙂
Cheers my friend!
I just go mine. What a great 2 n 1 meter. Great review and I just sub'd to your channel.
Hello my friend 👍 Great stuff and welcome aboard!
I'm pretty sure the red button is REL, a small mistake on your part. Anyway good job as always...
Yes ..it's hard to read though with a power button overlay but guilty as charged ! 😅
oh yes that was a great digital multimeter,got a 5 star how much this multimeter?
It's about 65US plus shipping! 👍
Just know that the battery you replaced it with is most certainly NOT 5000mah. 18650's top out at about 3500mah for 'low drain' types, and even less for high drain (~10A+) ones.
This is why it's important to buy Li-Ion batteries from reputable vendors like 18650batterystore. There's a good chance that battery is even less MAH than the original, although the original could have had inflated numbers printed on it as well.
Yes indeed...3500mah is to be expected 😊 I've since replaced it with a Samsung INR18650 I rescued from a Dewalt 20V Max battery. It's a great battery...just not thrilled that it's pink 😅😅😅
@@KeepOnTesting Pink? --- sounds like they might be the Samsung 30Q's I have. Great batteries - 15A and 3000mah. But I'm not wild about the pink either. 🙂 I use Li-Ions for both vapes and flashlights, so I'm somewhat versed on the good batteries for these applications. 👍
@@enigmaticmf Agreed..These Samsung's are definitely winners. Just don't know how pink became their color choice..would be great in a flashlight as you mentioned. I should find my camping gear and upgrade to these.. 🤔
@@KeepOnTesting I know I'm late to the party, but the tools I have that are painted pink seem to stick around in my bag/box and not as likely to be "accidentally" misplaced with someone else's tools. Thanks for the review; I have a 702S on the way to me now and have returned another meter based on a different review video you uploaded. You've earned yourself a sub, thanks!
@@JoshCarlsonftw Great to hear Josh! Let us know how you like your new 702S 😊👍
Wow - Five stars, a true red letter day-!! This one stands out for solid engineering effort, maximum value and functionality at a reasonable price. This shows a true upscaling in the world of budget hybrid DM's, as said in the review its been attempted before but this one shows a genuine intent to make it a good quality and useable device, not just a half baked attempt as seen so many times before.
You got it Mike! 👍 This one stings real good ! It has so many functions and they all work out of the box. Combined with great build quality and stable software at around 65$ US its really hard to beat. 5 Stars and deservedly so ✨️ 👌
Thanks for your help
Cheers my friend!
Wow, 5 stars. I see this meter-o'scope managed to impress you. I can't remember the last time you gave a 5 stars mark.🎉
Another alternative for a budget hobby oscilloscope could be the PC type. They usually have slightly better specs than handheld ones, but the crappy software could be their weak point. Or you can try your luck hunting for a proper bench scope on a used market. 🤷♂
Zoyi really knocked it out of the ballpark.. a real usable multimeter with an oscilloscope and rechargeable too...all at a price that's jaw dropping ! 😳
No to criticize
Great video. But not to criticize too much…
3:50 Plastic BNC’s on a oscilloscope is not a manufacture cheapening out on a product. Its actually the complete opposite, typically, if not always plastic BNC’s indicates isolated inputs. Because it costs two to three times more to manufacture isolated front end on an oscilloscope.
But in the case of this singe channel scope as long as your not using the usb at the same time as probing a circuit grounded to the same power source you shouldn’t have any issue. Because the power ground and probe ground will almost always share shielding on full metal BNC’s.
15:08 Does that not say REL on the red power button?
REL: Yes..I stated that in the comments as well..I completely missed the Rel/Power button as it was really badly placed.
PLASTIC BNC: Good point 👉 👈 I didn't look at it from that perspective but makes sense.
Thx for watching! 👀
Hi Darren!
I bought it yesterday and I am very impressed. It's fantastic.
I have a question: What charger should I use? How many amps? Watts?
What if I use your 5000mAh battery?
Hey that's great 👍 news! I'm now using a rescued 18650/3500 mAh battery I pulled from a defunct Dewalt battery. It's a Samsung holds the charge very well. XTAR X4 is a great choice for chargers 👌
Hi i just got mine yesterday. I had a little play and this thing is awesome!! Can you please tell me when on charge? Does the red power on light go green? As i had mine charging at a 2 hours approximately and the light stays red? Any reply appreciated cheers from Australia ❤. Subbed and liked 👍
Welcome friend! Great choice it's an excellent test instrument all around! First, I would suggest to update to the latest firmware if you haven't already done so, drive.google.com/uc?id=1oJkC0Z2enx7rmqYdQQi25L9pnPs8wovW&export=download
After a successful charge, the battery status indicator will show a full green battery bar in the upper corner of the display,
@KeepOnTesting thanks for the quick reply 😀
It finally ARRIVED! By the way, with a newer software version (1.03.51). This version has a MAJOR improvement: EVERY TIME you select "A" or "mA" in the multimeter mode (including switching between these modes), it displays (graphically!) the correct connection of test leads. Unfortunately, it does not display anything when you RETURN from those modes.
PS, being advertised as TRUE-RMS, it cannot do this for high frequencies even in the scope mode!
The situation: a vintage Soviet VFD calculator with a step-up converter, its VFD filament is powered directly from one of the secondary coils. The voltage on it is 2.5 V RMS +/- 10%, 115 kHz, PWM-like pulses with duty approx. 25..30% and without any DC component, 8..8.5 VPP. In multimeter mode, it displays zero (as all my other multimeters except Electrónica MMC-01 which displays 7 V). In scope mode, it displays 3.33 V RMS, which is definitely deadly for the VFD (and it operates perfectly!). Are there any multimeters that are able to measure RMS of such signals correctly (at least +/- 10%)?
Great stuff !! Honestly.. to measure high frequencies a good Scope is the only way to go. Dmms always have low maximum bandwidth involved. I don't know if the expensive Fluke 87 has analog or digital true-rms conversion. I'd say digital..most cases "true RMS DMM" means "it works for 50/60/120Hz that's about it..
@@KeepOnTesting Yep, up to several kilohertzs.
If you give it a 5/5 that can mean only 1 thing. I have to get it. Looks amazing and for the price it really is a no brainer. I have a couple other scope meters but this really seems a cut above. great review.
You won't be disappointed Tron! This might be the best overall meter in the sub 100 category period.. 2023 is only half way but already it's proving to be an incredible year for multimeters! Give us an update once you get the 702S ! 👍
Dear Mr. Darren,what is the main function of PTC on a multimeter?
Can this be used to measure audio preamp and amplifier signal amplitude etc. ?
Yes, absolutely..it's a signal so why not.
I guess users replacing the screw which is holding pcb near the input with plastic one might be good approach.
That's an idea 😊
Good day , thanks for the awesume presentation. I know very little about Oscilloscopes but I wanted one to test the output voltages on generators (110, 240 volts) would this meter be able to handle these voltages in oscilloscope mode?
Yes, not a problem 👌
Can i get images by mobile?
Like with otg?
I'm not quite as orgasmic as you seem to be over this, but its definitely a fantastic little bit of kit for the price. Mine has firmware V1.03.48 - whatever that means.
why you didnt test the maximum frequency,? i need to buy osvilloscoe just for that..else i better stick to my casual digital multimeter.
Frequency measures only to 100 kHz under ACV setting.
@@KeepOnTesting thank you.
*Hello. What is difference with zoyi ZT-702S and ANENG AOS02 ?*
Great question. They are identical. Zotek/Zoyi is the creator or OEM. Aneng just slaps their name on it.
@@KeepOnTesting so everything is the same? i can buy aneng in my place it is cheaper than zoyi
@Pera-Peric Yes..they are otherwise identical meters my friend 👍
Hello, Can it be used in automotive diagnostics? Does it support CAN, LIN and FlexRay protocols? And if not so what is the affordable one do you recommend for automotive repair?
No. I do not know if any dmm that supports FkexRay protocol ..it's a proprietary serial network standard so would be very costly to implement. I just reviewed a CHEAP-O automotive dmm that has alot of features. ua-cam.com/video/-al5Jrjucyw/v-deo.html
Thanks for your help.@@KeepOnTesting
@@ksamprocar-oh4ft anytime my friend!
BNC connector is never made of plastic.
It aften has a proctective surface, which is really recommended.
Presented device has a cheap plain BNC socket. It is not a good job.
Not true. Several vendors employ plastic connectors. Its a BNC connector with a molded plastic body. These plastic BNC connectors come in 50 and 75Ω versions and are fully compatible with existing products and applications while offering customers cost and weight savings.The plastic BNC connectors are nearly half the weight of a conventional version, weighing ~15g compared to metal versions at ~28g. Weight sensitive applications include mobile devices, instrumentation and avionics systems.
Hey amazing review but just letting you know that 5000mah cell is definitely fake, i’d rather use the provided 2000mah one over that.
Oh I realize that !! 😅 Just stuck it in for show ...
Does it measure capacitances by the charge/discharge time at constant current?
Yes
Please .. what is the highest value when measuring capacitors?
100mF 😃
thank you very much@@KeepOnTesting
Darren, what dose the REL button do then?
The REL mode basically zeros your multimeter reading at whatever point you are currently measuring. This point then becomes the new RELATIVE..a baseline measurement point ...
@@KeepOnTesting Yes Darren but you said this has no REL function
@@shaunmorrissey7313 Doh! 🤣 Hey he is human ya know.. 🤓
Uhhh..sorry misunderstood you the first time. Yea..That was a brain fart on my part. It does do Rel though ideally not sharing it with the Red power button would've been nice 😂
Have you found any way to reduce or eliminate the noise in the scope trace?
No , but since this meter is so inexpensive I think I can live with it. 👍
Fair enough. Just thought I'd ask.@@KeepOnTesting
@@timrolfes4778Fair question nonetheless..
Is its CPU a STM32 clone?
That 5000 mah 18650 😂😂😂
Nice being user upgradeable 😊
Troca esse led amarelo, ele amarelou 😅
When I turn on the device, it opens in oscilloscope mode. How do I set this to multimeter mode at boot
Unfortunately yiu can't..it will always default to Oscilloscope mode.. hopefully a firmware revision will change this in the future 🙏
@@KeepOnTesting I understand So what do we do to update the software?
@ What version firmware do you have ?
@@KeepOnTesting V1.03.51
@@KeepOnTesting my device; ANENG AOS02. Does this app fit my device?
Is it the same EXACT device as ANENG AOS-02?
Yes, ZOTEK is the OEM..Aneng is a rebranded ZOTEK.
@@KeepOnTesting Yesterday I ordered the Aneng version from Aliexpress and now I doubt if it's the same device.
@@watchmakerful Take a picture of the internal pcb and email me when it arrives: netplicity1@gmail.com
I'll tell you if it's the same or not.
I don't need another multimeter!! Oh... wait... dang!
Lol..that's the spirit 😃👍
@@KeepOnTesting DAM YOU! I ordered one! I will soo tell me mom!
@@Brakballe Ahhh...that's the spirit! OK..I'll take the heat from your mom 😃
I have one, the battery unfortunately lasts 1 day of use
It's a good idea to keep a spare 18650 charged
Recharge the battery.
Can it play Doom?
I'm sure it could with the right hack 😏👍
I looked at a lot of reviews on this device and nowhere did I find a mention of such, maybe not very noticeable, as it seems to me, a software glitch in terms of display - this is a periodic flicker of symbols of the type of measurement in multimeter mode, such as AC, DC, graphic elements of a resistor, diode, calls. This manifests itself in the form of a small periodic flickering of the upper part of these elements on the screen. I am the owner of this device, and at first I thought that it was only me who had such a jamb, but after looking at several reviews, this is also noticeable on the video. The firmware is the latest 51st, a device branded RICHMETERS 702S. This bug is present for everyone or not, I would like to know, it seems like a trifle, but not very pleasant. Owners of this device, write, someone like this glitch
Who combines the REL button with the power button? 😂 I'm cutting four stars for that! Just kidding 😁
Honestly Bhushan it irked me as well.In fact the contrast of the red power button makes it incredibly hard to see and I missed the Rel feature in the initial review because if it. But..suffice to say it is there nonetheless so all is goodin Rel land! 😃 😊
6:36 why would yu call 3.185 3.1? Okay, not quite 3.2 but that's you rounding the wrong way and it bugs my engineer brain! And sure, can't say 3.2 as it isn't but could say "almost 3.2" or such...
I hear you my friend! I agree...I'm usually more precise but in this case I was perhaps too liberal with my rounding 😅
Your 5000 mAh 18650 Cell is fake. Because it's not possible to have that much capacity in this size...😢😢😢😢😢😢The maximum capacity that an 18650 size Cell can hold is between 3500-4000 mAh....
it looks like uni t copy
Nope..its definitely an original but yes the red and black does have that UNI-T flair!
But of course the 61e is a much better DMM. But I do like red more than Fluke yellow.
@@barrybogart5436 indeed me too like it so much than the yellow