Hantek 2D42 vs Zoyi ZT-703S - Page 1
Forum section: electronics / beginners

author: Kilroywashere
author_rank: Regular Contributor
timestamp: August 01, 2024, 03:01:38 pm
content: I have the opportunity to buy a 2d42 I talked to him to about a hundred bucks so basically the same price as the Zt-7...I guess my question is which one would you go for?

author: Phil1977
author_rank: Frequent Contributor
timestamp: August 01, 2024, 04:42:35 pm
content: What do you want to do with the scope?These scopemeters are a compromise, and sometimes not a good one. On the other hand: Both models you mentioned seem to be of the kind that´s better than no scope.The biggest difference between both probably is the user interface. Some people may like the old-style hantek, for some the newer Zoyi is more comfortable. Of course it would be best to try both in real life.

author: Kilroywashere
author_rank: Regular Contributor
timestamp: August 01, 2024, 05:15:42 pm
content: Well I have a 20 MHz dual Channel digital oscilloscope but it's basically a toy it was like the cheapest one I could get and it's not even really supported anymore.. and my other scope is so old it's from the fall of the Berlin Wall..And to be I don't really have a decent multimeter.. so this seems like something that would really suit me..I would like something that I could plug into the mains without worrying about blowing up in my hands because improper protectionBasically I guess I'm looking for something that is better then my crappy 20 megahertz crap that has no support ...I mean I would like to start getting into using a scope more so I can start to do more complex projects

author: tunk
author_rank: Super Contributor
timestamp: August 01, 2024, 05:22:52 pm
content: The Zoyi has a larger screen, 3.5" vs 2.8", i.e. 56% larger area.

author: Aldo22
author_rank: Super Contributor
timestamp: August 01, 2024, 05:27:19 pm
content: There are more options. For example the Zeeweii.https://www.aliexpress.com/item/1005005920059835.htmlThe biggest advantage of the Hantek is probably that it is PC-controllable.It also has a better sensitivity than the Zoyi (10mV vs 20mV)

author: Kilroywashere
author_rank: Regular Contributor
timestamp: August 01, 2024, 05:30:58 pm
content: This looks like it's way better scope wise... Hmm something to think aboutI do like the multi-purpose aspect about this device and to be honest it might be a better multimeter than what I have as well so if I could save some money and this would be good enough to learn a few things and be usefulI just don't really know if it's better to spend the money on something like you just sent me and deal with the s***** multimeters that I have

author: Kilroywashere
author_rank: Regular Contributor
timestamp: August 01, 2024, 05:40:41 pm
content: These are my multimeters I don't even know if I would trust them in mains voltage and I have no idea if they're actually any good but this thing seems to be a decent multimeter and a decent scope for beginnersSo I guess from my understanding that both of these multimeter scopes are relatively the same just with a few personal differences..Do you think that it's worth buying if I don't have a proper multimeter or proper scope or should I spend the money to get it's 100 and something megahertz that buddy suggested and deal with my crappy multimeters

author: Kilroywashere
author_rank: Regular Contributor
timestamp: August 01, 2024, 05:51:26 pm
content: Or is this thing actually better than both of those devices they haven't really heard of that brand name before..https://www.aliexpress.com/item/1005005920059835.html

author: Phil1977
author_rank: Frequent Contributor
timestamp: August 01, 2024, 06:05:07 pm
content: Zoyi is one of the larger manufacturers for lots of brands like Aneng and B-Side if I correctly remember.I´d trust them more to know how to make a cheap but not too bad DMM than Hantek and definitely much more than the no-name unit you have linked.If it´s a good idea to connect cheap DMMs to mains is another question. Personally I think to use a cheap multimeter in voltage mode is not more dangerous than plugging in a cheap SMPS - but opinions heavily differ.If you want to measure current then things are different. Chances of "explosive" fuse triggering are much higher while current measurements. Probably the infamously misplaced test lead is the most common cause, and there it´s really better to have solid test leads and a capable fuse in the meter. I´d really prefer to make this mistake with a Fluke compared to anything else

author: Gyro
author_rank: Super Contributor
timestamp: August 01, 2024, 06:17:23 pm
content: Personally, I wouldn't trust any of those cheap scopemeters on the mains, if you look at the teardown videos, their input protection is pretty rudimentary, often worse than the average 'hobbyist' DMM.Edit: From your purchase history so far, you may want to step back and consider whether you are making a good purchasing decision (a handheld scope) this time.

author: Aldo22
author_rank: Super Contributor
timestamp: August 01, 2024, 06:26:57 pm
content: I would not buy a scopemeter unless portability is very important.If you are on a tight budget:DSO2C10+AN870Not perfect either, but 10x better than these devices.my 2 ¢

author: wasedadoc
author_rank: Super Contributor
timestamp: August 01, 2024, 06:28:36 pm
content: I bought the Zeeweii rather than the Zoyi and don't regret it. Sure it doesn't come close to my Rigol DS1054z especially in terms of triggering but for a quick look at something it is quite adept.

author: Kilroywashere
author_rank: Regular Contributor
timestamp: August 01, 2024, 06:31:33 pm
content: https://www.aliexpress.com/item/1005005920059835.htmlI can't really justify a $300 oscilloscope as much as I would love to have that ds10 that Dave suggests..I'm kind of liking this to be honest.. I mean if there's a better scope for that same price I don't know.. I guess what I should probably do is buy something like this.. and then save my money for a fluke clamp meter like this oneI'm going to assume the two meters that I have are okay for most DC electronics and for measuring veins voltage and working on power supplies and stuff this fluke would be much better?Do you think that this is a reasonable way to go spend about $130 on a oscilloscope and then another hundred dollars on a brand name fluke

author: wasedadoc
author_rank: Super Contributor
timestamp: August 01, 2024, 06:37:57 pm
content: Be aware that Fluke clamp meter does not measure direct current.

author: Kilroywashere
author_rank: Regular Contributor
timestamp: August 01, 2024, 06:44:06 pm
content: I did not see that thank you. That's basically the dilemma ....

author: Gyro
author_rank: Super Contributor
timestamp: August 01, 2024, 07:24:40 pm
content: I don't know pricing in Canada, but the safest cheap Fluke for voltage measurement is the Fluke 101, (partly because it doesn't have current ranges) and the lowest cost reasonable DC current clamp, the Uni-T UT210E (lots of threads here). I'll leave you to do the costings to see how that works out against alternatives. There are also other low cost Flukes (11x family) but price climbs fairly steeply.I'll have to leave it to you to decide how competent you are to work on mains, and mains SMPSs in particular - things can go South very fast! If it's something that you are not realistically going to do, then you can save (everything?) on DMM cost.I would allocate as much of your budget as possible to the scope. Lowest cost decent benchtop units you might consider are the Hantek DSO2C10 (a few bugs but mostly perfectly fine, see DSO2xxx forum threads) and the Rigol DS1102Z-E, again you need to look at local pricing but the Rigol is getting cheaper with the newer ranges coming out.I know you have a crap (USB?) 20MHz scope, but a USB scope you might consider is the VDS1022I. I know it's only 2 channel 25MHZ (~30MHz -3db) 2x 100Msps, but it doesexactlywhat it says on the tin (unlike the Hantek and other cheap USB scopes), has decent PC screen update and has galvanic USB isolation (to protect your USB port, not for mains isolation). There is also an alternative, improved, PC app for it. Again check pricing (make sure it's the 'I' isolated version) and forum threads. Just a though on this one anyway, it will be cheaper than anything else you are considering.P.S. Check out the Owon handheld scopes too, eg the HDS272, they are much better than the Hanteks in side by side comparison videos.

author: Kilroywashere
author_rank: Regular Contributor
timestamp: August 01, 2024, 09:29:14 pm
content: Thank you for that answer it was actually quite helpful... I will take a look at the items that you have mentioned. And I think you are right about keeping the bulk of my budget on the oscilloscope itself you have given me quite a lot to think about..In fact I want to thank everybody for their comments they were all quite helpful..I think I'm at a point in my learning experience where I'm starting to want to try more complicated things.. I don't feel extremely comfortable with mains voltage but I always try to work as safe as possibleI at least want to know that when it comes time for me to feel comfortable that I need a reliable piece of equipment that can help keep me safe. I have recently been getting more into switch mode power supplies because I've been setting up a 240 watt solar panel.I'm trailing away from the point...I appreciate everybody's experience when it comes to their knowledge ..

author: Kilroywashere
author_rank: Regular Contributor
timestamp: August 01, 2024, 09:47:06 pm
content: https://www.sainsmart.com/products/dds-120-pc-based-virtual-oscilloscope-silverwhat I got now DDS-120