It Might Have Just Set a New Record! Review/Teardown of a FNIRSI 2C53P 3-in-1 OSC/DMM/Function Gen

[@PeoterRhubarb]

Thank you Kerry! ElectroBananas channel did a complete and very detailed teardown. There was a PTC protection device under the DMM PCB. The soldered in fuses are HORRIBLE!

[@SparkyBang6969]

What is the link to electrobananas video?

[@PeoterRhubarb]

kzbin.info/www/bejne/ZmTXpotqq7Nsfacsi=NZuJtWPzpc1Ed47b

[@javierpallalorden]

Thank you Kerry, an honest review is always appreciated!

[@SleepyMechanic]

Something that helped with the artifacts on mine was to adjust the dial on the scope connected that goes in to the head unit. After I did this, the signal actually cleaned up far more than I expected especially given your review

[@guateque1718]

The standout feature of this device is in how many ways it would disappoint me.

[@originalmianos]

Also, the number of insersions of an mcx connector is very low before they fail compared to a BNC. Even compared to sma, they are terrible. They are good for just a few insertions or static cables.

[@poormanselectronicsbench2021]

Thanks for a comprehensive and honest review.I would definitely be interested in this, IF, it didn't have the inability to display some of the waveforms you showed it to have issues with, as most other low price point scope devices can display them. Unlike you, I feel the logging graph on the multimeter can come in very handy for doing adjustments like IF alignments on radios, or, setting a bias and tracking it's change on an audio amplifier. I do hope you have reached out to the manufacturer, or they have to you, to see when a fix for the scope aliasing issues might be fixed. I am thinking that FG output may be able to be changed to a female SMA within the space given as well, at least it would then be a bit more standard.

[@juhaszpeter4796]

If you have the time and desire, try the ones you tested in the video with the CH2. CH1 is a waste for me. CH2 is more usable. At Ch1, I also noticed that when I set the time base from 200ns to 80ns, the wave amplitudemultiplies. plus there some problem with the single trigger. When measuring current, there is a drift, not a little. Significantly noticeable above 5A.

[@zeddpilsner4]

Screen protector peel at 2:20

[@recursoseninternet]

I would like to ask. It seems that the oscilloscope probe included with this equipment can only be set to x1 and x10, even if I buy an x100, it cannot be configured. So, with the probes it comes with, can I measure and see the 220V mains voltage at x10? According to the manual, I believe it only supports 400V peak to peak, and I think the mains voltage could exceed that since it is 220V RMS (and in some cases it can exceed 240V). I need help with this before buying because no one says anything about this

[@KerryWongBlog]

220V rms is 311v peak-to-peak. So you should have no problems with a x10 probe.

[@recursoseninternet]

​@@KerryWongBlog However, I still believe that FNIRSI should add the X100 option in a firmware update to allow the use of my X100 probes. I think it would be something simple because it only affects the calculations that the device makes, and I don't understand why they haven't included that option. Thank you very much for your response.

[@technofox2604]

Thank you for a HONEST review. I will keep looking.

[@wtmayhew]

Thanks, good review. I like the form factor, other than the protruding instead of recessed screen. The user interface seems reasonable too. The scant input protection of the multimeter and odd behavior of the oscilloscope on non optimal timebase setting are almost show-stoppers. The good thing is this device has the potential to be pretty good if it gets better firmware and better input protection for the multimeter. No unit has yet to displace my Owon HDS-2102S as my tool bag standard carry, not even the HDS-2202S. I’ve also got the Zotek 702 and 703 models, but both have limitations. I have some hope for the 703 because Zotek has been fairly active at updating the firmware and they’ve fixed a few pretty bad bugs. I like the 702/703 form factor because it feels good in the hand versus the larger Owon HDS models. My largest complaint outside of firmware of the Zotek 702/703 is that the BNC jacks are set too far in and a standard Amphenol BNC plug will not firmly click into its detent when attached.

[@Cliff7257]

A real honest review. Thank you.

[@opera5714]

I just got a free one for evaluation. This may be a minor point, when I first charged it there was no indicator to say it was charging or when it had finished charging. They always have software issues and the move on to the next model before solving them. I need to document stuff. Why can't they have a USB port to save images to memory.

[@juhaszpeter4796]

The charging indicator is the least of the problems. The biggest problem with it is hardware limitations, faulty design and implementation, and software bugs. I still have the 1013D and the DPOX180H and not all bugs have been fixed in them, I think Fnirsi has already abandoned the project. Several people pointed out a physical defect in the DPOX180H, but it was not fixed. It got a new exterior design and that's it...👍 I wouldn't be optimistic about this either. A few months and they release another piece of waste and throw it away... Those who bought it will regret it.

[@oemdtc]

The bar graph is very usefull for automotive testing...

[@keen2461]

Excellent review as usual. Thanks for your time.

[@зробленоруками-ц8м]

I wonder what's the schematic behind etalon current source? Is it descrete by any chance

[@AbhishekKr1902]

Nothing beats the Owon HDS2xxx series!

[@juhaszpeter4796]

Owon HDS3xxx 🤣

[@TonyLiveTV]

I see you are testing the old version. I can see this because of the FUNCATION spelling error. According to FNIRSI most issues have been resolved. At least that’s what they tell me in an email. I was wondering if you had a chance to verify this?

[@KerryWongBlog]

I will check their website again, as I didn't see any new firmware updates on their website the last time I checked.

[@TonyLiveTV]

@ the newer one has the spelling fixed. That’s one difference. I’m not sure about the firmware versions, but I emailed them and they said the “updated” one is fixed. Maybe they’ll send you the updated version for review?

[@TonyLiveTV]

@ I just received my FNIRSI 2C53P and it has version 1.8.2.2. This is newer than what’s listed on their website. I don’t know anything about an oscilloscope so I don’t know how to test it like you did here.

[@LawpickingLocksmith]

Funny how they pack so much into such a small device. Cute for what it does.

[@Sentinel-1]

Thank you for your honest reviews and tests, they are priceless. 👍🏻

[@fx622b]

are you aware of any similar devices (can be scope meter as well) which uses hotswappable, quick replaceable 18650 (or 21700, or AA) batteries? Thanks 🙏

[@KerryWongBlog]

So far I haven't seen any. Nowadays all these devices take USB charging so you could always power them with an external power bank I suppose.

[@davidpelechano7422]

Hello, mate! I don't know if you've continued testing the oscilloscope. I've bought one myself, and I'm having an issue with the screen refresh when using the single trigger. Does something similar happen with yours?

[@KerryWongBlog]

What do you mean by "screen refresh when using the single trigger"? If you could describe your test setup, I can double check with mine.

[@davidpelechano7422]

@@KerryWongBlog Hello Kerry, first of all, thank you for responding. I set up the trigger on the device to "single," so it doesn't acquire anything until I press play. Once triggered, it holds the image, and if I don’t press play again, that sample stays frozen, giving me time to analyze it. Well, on this oscilloscope, these samples aren’t displayed correctly-the line is discontinuous and has different frequencies. I’m not sure if this is a general issue with the device or if mine is defective. I hope I was clearer this time. Regards.

[@KerryWongBlog]

I just realized I actually didn't test the single mode in the video. I just went back and tested on mine. It is buggy at best. Most of the time I couldn't get it to trigger at all! it just says "Await Trigger". But once a while I did manage to get it to trigger and it captured the waveform alright. So seems to be a firmware issue.

[@davidpelechano7422]

​@@KerryWongBlogHello, Kerry, thank you for your responses. I'm experiencing a similar issue to yours. Additionally, when the single mode captures the signal, the signal appears broken, with the middle of the screen showing empty. Hello, I’m thinking about returning this one and buying the 2C53T. Have you used it? The single trigger feature seems essential to me when I need to capture a non-repetitive signal at a precise moment.

[@tizianob8590]

I bought one of their first battery-operated oscilloscopes. It looked nice, it seemed to be of great quality but the firmware was terrible in every way, the triggering and single mode were totally hopeless, the interface was poorly implemented. And I see the same problems here. I bought an Owon (VDS1022I). It doesn't promise anything amazing but it works as it should.

[@bobisyouruncle1]

Another halfbaked scope. Seems like they push out as many products as they can without properly designing the functionality. 😡

[@watchmakerful]

Probably this device uses different sampling rates for different time bases.

[@wtmayhew]

Yea, the sampling rate would contribute to the odd behavior. One good thing about the Owon HDS series scope meters is that they tell you on the border of the screen what the sampling rate is. As noted, the Owon scope meters are able to properly show the envelope of a modulated fast waveform at slow sweep speeds. The HDS-2102S is still my go-to portable unit.

[@juhaszpeter4796]

and memory depth... just llke th 1013d/1014d ...

[@sheridanmohammed]

Did you update the firmware because i'm really disappointed in this scope and would like to know that they fix these problems in the latest firmware

[@KerryWongBlog]

I haven't seen any firmware updates yet.

[@potang008]

@@KerryWongBlog There is a V1.7 firmware on the download page. What is the version you have for the testing?

[@juhaszpeter4796]

@@potang008 There is an Update Log in the compressed file, which describes what has been fixed so far. Not the bugs shown above. I didn't notice any improvement after updating. the update contains two files. The APP V1.7 and the FPGA V1.5.

[@bunnatang2081]

2c53p vs dxo180h?

[@MrPenguin098]

What is FUNCATION??? WOW, no quality control. It's also on the box! and inside this 3-in-1.

[@tiagoferreira086]

That word was stressing me out through out the video, how is even possible no one cared about such a basic an evident error??? that alone is already a big red flag for the device quality... Also the "home" symbol for the menu...what were they thinking?

[@CoockieClassiCKeks]

Nice review, thank you. Im looking for a little oscilloscope to make measurements in old cassetterecorders, would this be fine, or useless, because of the issues youre telling? Wich one, with the same display-size would you prefer? Thanks (-: Best regars Cookie

[@juhaszpeter4796]

Not worth it. Wong didn't show all the bugs, there are many. trigger problem, CH1 gives an incorrect measurement, you can't zoom in on a fast time base, and the single trigger doesn't work well either, you don't know how much memory depth is actually used in the current time base, and it's a cosmetic wave, which is not always real. The 20MHz limit does not work. etc.😭 A couple of hours of video could be put together in a cut version just to present the Bugs.😱

[@juhaszpeter4796]

Watch a few more videos about this Hantek TO1112.

[@kevkabluebird1032]

The combo-unit shango066 likes :D

[@Sentinel-1]

It's a shame that he hasn't discovered HDS2202S yet.

[@cristian7477]

Please test 2C23T ✌️🇨🇱

[@paulcohen1555]

Thanks for revealing the TRUTH.

[@barrybogart5436]

I avoid Fnirsi and just use Owon handhelds, although the new Zoyi is all right. I just wish someone with combine a 'scope with a thermal camera! I have enough DMMs.

[@KerryWongBlog]

Wouldn't be surprised to see a Osc/thermal camera combo in the future. After all, I have already reviewed a few DMM/thermal camera combos.

[@rainerrieck6596]

I just wasted $130,oo for the oscilloscope cant pick up OBD2 signals for coil driver, injecters , EGR OR MAF SENSORS just total garbage.

[@johnwest7993]

Using the same color for all banana connections is penny pinching, a packaging engineer who knows nothing about the electronics industry, or both. I bet the sig gen conn they used is 5 cents cheaper than a BNC. Oddly it looks like the company knows less about this product than previous products. Did FNERSI have a bunch of engineers quit and get replaced by noobs?

[@jonalowe]

Let's hope there is a firmware update very soon. Disappointing.

[@meanodustino9563]

Just bought this scope. Its going back 🤣 i wont use this JUNK. Put my money in a PICO

[@andymouse]

Great review but disappointing product, the way it handles waveforms is dreadful ! how did they miss this?? and a third BNC would have meant a re design of there woefully protected meter...cheers

[@ohboy4784]

Looks like a device to skip... Only plus is a bigger size display. Full of bugs and too expensive.

[@EngineeringAllAround]

Shame on Fnirsi. Is it another try to trick users with some sort of NON-real-time sampling mode? This stuff can't display random signals!

[@juhaszpeter4796]

Plus the single triggering doesn't work😭..

[@EngineeringAllAround]

That's because it needs several captures to find a signal approximation.

[@juhaszpeter4796]

@@EngineeringAllAround not only that. Now suddenly I don't know during which time base it doesn't work. but in the faster time base it does not catch the signal at all. I wrote to fnirsi, they know it's not a bug. But this was not described anywhere... with my Owon, I can use a single trigger even in the fastest time frame... fnirsi is fooling people again, just like with the scopes of the 1013D/1014D... I'm already scolding myself for buying it... Unfortunately, it's not just software bug, but it still contains a major hardware bug.😭

[@tiagoferreira086]

Once in while fnirsi does something usable but most of the tools are an absolute gargage.

[@paulcohen1555]

Not very surprised with FNIRSI poor actual performance.

[@loslos2937]

The truth is that I don't understand the purpose of buying that garbage, you can get a proper rigol with 12 bit adc for $300 and you know it's a brand with guarantees

[@juhaszpeter4796]

I have the Rigol, but Siglent seems better.

[@home.or_outside]

I ordered this scope one day before this video came up and i regret 😂....also have hds272s and hds2102s......this scope is essentialy useless like Kerry says ....fnirsi has the worst measurment products of all the chinese companies

[@GWorxOz]

chinglish

[@tiagoferreira086]

the youtube provides translation for your word... 😂😂 and amazingly the translated word is the same 🤣🤣