UNI-T UPO2104HD 12-bit oscilloscope (UPO2000HD series) (preview) - Page 1
Forum section: electronics / testgear

author: kish
author_rank: Contributor
timestamp: September 27, 2025, 10:29:17 pm
content: I was looking to buy my very first bench top oscilloscope for and decided to buy theUNI-T UPO2104HD12-bit oscilloscope(datasheet), directly from UNI-T's(US shop). The unit was released for sale in the US in Sept 2025.The listing price is$1,099, but there was this "spin the wheel" popup while I was browsing the US Shop and I received a discount code for 10% sitewide, bringing the price to$989shipped, which is think is a great value.(all these images are clickable for full resolution)With 12-bit oscilloscopes all the rage these days, my main criteria was a 4-channel 12-bit scope with a nice big 10" touchscreen display for easy visibility. I'm a amateur hobbyist, so something around the 100 MHz bandwidth mark is enough, but with decent sampling rate (> 2 GSa/s).The UNI-T UPO2000HD Series series checked all the boxes for me:-12-bitADC vertical resolution-10.1"touchscreen (1280x800)-2 or 4channels (mine is 4 channels)-70-200 MHzbandwidth (mine is 100MHz)- Max Waveform Sampling Rate:2.5 GSa/s(1 channel) / 1.25 GSa/s (2 channels) / 0.625 GSa/s (4 channels)- Max Memory Depth:100M pts- Max Capture Rate: 125,000 frames (hardware real-time) /250,000 wfm/s(vector mode) / 1,000,000 wfm/s (sequence mode)- 3-year warranty (standard) /5-yearwarranty (registered)The only things missing are any kind of built-in function generator output (except the 10 MHz ref on the back), and no Digital Channels input.The next step up is UNI-T MSO3024HD, $2,600.Almost same specs, except base 200 MHz bandwidth, 2.5 / 2.5 / 1.5 GSa/s Samping Rate, 16 Digital Input channels standard.I considered several other 12-bit oscilloscope's in the $1000-$2000 range. But the UNI-T unit had the best price/performance value:1. Rigol DHO1000 Series, specifically theDHO1104for $934:- 10.1" touchscreen (1280x800)- 2 or 4 channels- 70-200 MHz bandwidth- Max Waveform Sampling Rate:2.0 GSa/s(1 channel) / 1.00 GSa/s (2 channels) / 0.500 GSa/s (4 channels)- Max Memory Depth:50M(1 channel) / 25M (2 channels) / 12.5M (4 channels)- Max Capture Rate: 500,000 frames (hardware real-time) /50,000 wfm/s(vector mode) / 1,500,000 wfm/s (sequence mode)The next step up is Rigol DHO4204, $2,294.200 Mhz base bandwidth, 4.0 / 2.0 / 1.0 GSa/s Sampling Rate, 500M / 250M / 125M Memory Depth.2. Siglent SDS1000X HD Series, specifically theSDS1104X HDfor $1,399:- 10.1" touchscreen (1024x600)- 2 or 4 channels- 100-200 MHz bandwidth- Max Waveform Sampling Rate:2.0 GSa/s(1 channel) / 1.00 GSa/s (2 channels) / 0.500 GSa/s (4 channels)- Max Memory Depth:100M(1 channel) / 50M (2 channels) / 25M (4 channels)- Max Capture Rate: 80,000 frames (hardware real-time) /120,000 wfm/s(vector mode) / 500,000 wfm/s (sequence mode)The next step up is Siglent SDS2204X HD, $2,759.200 Mhz base bandwidth, 2.0 / 2.0 / 1.0 GSa/s Sampling Rate, 200M / 200M / 100M Memory Depth.There isn't too many reviews of the UNI-T UPO2000HD Series on the internet (since it just came out). This is a "preview" as I'm just an amateur and don't have test gear to properly do a technical review.So first, some exterior views:(three levels of incline):(well-integrated carrying handle):(rear):(rear I/O ports);(there are 2 fans on the left, ~80mm. Audible, but not annoying. Sounds like moving air):(front I/O ports):(front controls. Scale and multipurpose knobs have indents. Position knobs are smooth scrolling):(my unit came with four 1x/10x100MHz probes):(cold boot takes~26 seconds):(probe calibration):(UI is intuitive to use. Probes and stats are laid out on the bottom bar. Top bar has quick links to functions):(pop-up windows are easy to understand, and can contain wiring diagrams):(built-in help is very useful, with details and diagrams):(my unit came with all functions unlocked from the factory, except for Power Analysis, $279.00 option):(100Mhz to 200MHz bandwidth upgrade is also available for $299)(stats example with histogram):(math example with multiple windows):I just got the unit so I'll need to read the built-in manual and play around with it a bit more. There's a ton more technical info in the datasheet for those interested.Overall, I think it's a fantastic unit for my hobbyist needs. The 10.1" touch display looks great with the matte coating.The UI is very responsive and it's easy-to-use. The top bar is customizable and has quick access to all the functions, and the bottom bar makes it easy to view and adjust the inputs and any math functions or references.I would have preferred a white colored front panel for better legibility, rather than black colored with shine through keys (not bright enough IMO). The only real bummer is that the fan is audible, although it's not annoying (sound like moving air).The included UNI-T UT-P04 probes are basic:1X : 6MHz | 105 pF | <200V pk | CAT II 150V AC10X: 100MHz | 15 pF | <600V pk | CAT II 300V ACI'm thinking of picking up a set of higher quality fixed 1x and 10x probes. Or are these good enough for me? If anyone has recommendations, let me know.If anyone wants me to show anything specific, also let me know. Sorry, no teardowns for now!

author: Martin72
author_rank: Super Contributor
timestamp: September 27, 2025, 10:53:05 pm
content: I can't help but think there seems to be a lot of Rigol in it.Quote-Noise Test-Multitone Test-FFT : Show the menus, show the different "windows" like Rectangle, Blackman, Flat, Hanning(von Hann), etc with a signal feed in.- Waveform update rate test-Multi-Windows: Are the windows free moveable to any position you want ?-Math: What mathfunction are avaible, show menu-Show zoom functions-It seems to have power analyzer function, does it have bode plot ?

author: ptluis
author_rank: Frequent Contributor
timestamp: September 27, 2025, 11:14:51 pm
content: The UI looks similar to Owon ADS3000A, ADS800A, ADS900A series

author: kish
author_rank: Contributor
timestamp: September 27, 2025, 11:44:44 pm
content: > -FFT : Show the menusThe pop-up windowscan be moved freely, even on top of the top and bottom menu bars. The pop-up window transparency can be adjusted:FFT (Hanning), with default probe 1 KHz wave:> -Multi-Windows: Are the windows free moveable to any position you want ?Yes, I candrag the windowtitle bar and move/drop it to any fixed positions on the screen to rearrange the windows. There's a "ghost" icon that shows where the window can be snapped to, including within other windows.At least for Math functions, it's possible tooverlayon top of input signal, or show in aseparate window. There's a check box for "Independent Window"However, it seems to be "all or nothing". I can't display Math function1 on a separate window and overlay Math function2. It's either both on separate windows, or both on top of input signal.> -Math: What mathfunction are avaible, show menuBasic (A+B, etc):Advanced (type-in your expression):Filters:

author: kish
author_rank: Contributor
timestamp: September 28, 2025, 12:00:36 am
content: > -It seems to have power analyzer function, does it have bode plot ?I searched for "bode plot" in the user manual, and didn't come up with useful hits.I think doesn't seem to be able to display a bode plot directly on the unit? It only mentions saving the raw Bode plot data as a list in CSV to a USB drive for export.I did find this, but I don't know if that's what you were looking for. (The input data is garbage, just showing the UI).Power Harmonics:

author: rpro
author_rank: Regular Contributor
timestamp: September 28, 2025, 06:59:46 pm
content: Quote from: Martin72 on September 27, 2025, 10:53:05 pmYes, but assuming it works, the software seems to be miles ahead of the DHO's. Take a look at the manual for the smaller 1000HD model here:https://fotronic.asset.akeneo.cloud/pdfs/media/unitrend_upo1000hd_series_manual.pdf(Zone trigger, well featured Power Analysis, Vert/Horiz Zoom, better meassurements, Math and FFT, with at least some basic features implemented.)

author: voltsandjolts
author_rank: Unknown
timestamp: September 28, 2025, 07:11:41 pm
content: Thanks for the pics of the outside, how about the inside?

author: S13
author_rank: Regular Contributor
timestamp: September 28, 2025, 07:58:15 pm
content: It looks like a very nice scope to be honest! I like the big screen with high resolution, and actual full width use for the waveform display. From the outside it might look a bit less "premium" compared to the siglent for example (personal preference i guess), but i do like the looks of the UI. Uni-t is stepping up its game.It even comes with measurement histogram function, nice! Can it also do a trend plot for a measurement?Also how is the intensity grading of the waveform? Can it do proper color grading? I was recently complaining about this with the new sds1000x-hd. The Micsig MHO1 on the other hand is doing excellent intensity grading.https://www.eevblog.com/forum/testgear/siglent-sds1000x-hd-12bit-2gsas-oscilloscope-unboxing-test/msg6040483/#msg6040483I do wonder if those capture rates as stated are correct... If it would actually do the stated 125K waves/sec, i'd be amazed. The siglent doesnt get much further than 30K/s.

author: thm_w
author_rank: Super Contributor
timestamp: September 29, 2025, 10:26:55 pm
content: Current price of DHO1074 is $764 and that can be hacked to ~400MHz. But yes otherwise the Uni-t does look quite competitive, compared to the overly high pricing of their other recent gear.70uVrms noise at 200MHz is claimed.Prices:https://uni-trendus.com/collections/upo2000hdManuals:https://instruments.uni-trend.com/download?cate=109Quote from: S13 on September 28, 2025, 07:58:15 pmExample from the manual:Says it has color grading: "Switch on/off “color temperature” in the “Display” menu, the default setting is OFF".

author: KungFuJosh
author_rank: Super Contributor
timestamp: September 29, 2025, 10:55:05 pm
content: "TRIGED" is a little triggering.

author: mawyatt
author_rank: Super Contributor
timestamp: September 30, 2025, 02:23:45 pm
content: Rigol and Siglent have accumulated significant DSO knowledge from their relationships with Keysight and LeCroy respectively. They both create quality, reliable hardware (why the Keysight and LeCroy relationship existed) and serve the low to mid DSO market well with multiple high performing cost effective products. Not sure if Rigol has continued partnering with KS, but Siglent continues with LeCroy and apparently has benefited better than Rigol with this partnering.Very interested if UNI-T can enter this DSO market area dominated by Rigol and Siglent with something that is competitive cost and performance-wise, with equivalent quality hardware.We await the knowledgable in-depth reviews and tear-downs!!Best

author: 2N3055
author_rank: Super Contributor
timestamp: September 30, 2025, 03:18:39 pm
content: Quote from: mawyatt on September 30, 2025, 02:23:45 pmUNI-T is already trying to enter the market. It remains to see it they are capable of overcoming their flaws.They are known for very hit and miss quality. I personally bought some 7-8 of their devices. I really like 3 of those and they work well. Insulation meter, IR thermometer and laser meter. I have LCR meter that is mediocre but it is Ok for quick check. I literally threw away the rest, including UT70C that cost as much as BM869 because it input jacks were made of just a piece of folded sheet metal with a split inserted into plastic. Plastic broke, sheet metal deformed. I haven't seen that kind of crap on Lidl multimeters.Also so far there was no support of any sorts.So their challenge is not putting scopes on market. I presume they outsourced development of this new series, because you don't start making scopes like that overnight. So hardware is there, let's see how it is going to be with support. FW development, bug releases, long term support.If they do that better than Rigol maybe they are going to be interesting...

author: mawyatt
author_rank: Super Contributor
timestamp: September 30, 2025, 03:56:20 pm
content: Quote from: 2N3055 on September 30, 2025, 03:18:39 pmWe have a couple UNI-T products, a Dual Thermometer and Thermal Imager. Both are OK and do what's expected.DSOs are a complex instrument and have a steep learning curve. Siglent outperforms Rigol with after sale support (firmware updates) and local support here, will be interesting to see how well UNI-T responds to after sale support and how the DSO fundamentally behaves!!Best

author: BillyO
author_rank: Super Contributor
timestamp: September 30, 2025, 04:56:47 pm
content: I'll never go down the UNI-T rabbit hole again. The last scope and bench DMM I got off them came with ZERO support. They are long gone now and good riddance to bad rubbish.I hope the OP has better luck.

author: Performa01
author_rank: Super Contributor
timestamp: October 01, 2025, 06:27:30 pm
content: Quote from: 2N3055 on September 30, 2025, 03:18:39 pmI've tried a few UNI-T products too and didn't get disappointed with devices, where my requirements (and expectations) were low in the first place, such as an insulation tester, where I have barely any need for. The same goes for the UT61E, which is okay for the price, but otherwise is really nothing to write home about.More complex instruments like their UTG2062A AWG had questionable price/performance ratio and mine died after a couple of years for no good reason (probably PSU fault, didn't bother to diagnose it).My only personal contact with them was on the Electronica fair in Munich 2016, when they proudly presented their (new back then) DSOs and of course they were claimed to be so much better than the competition. I've never met such arrogant folks before.

author: mawyatt
author_rank: Super Contributor
timestamp: October 01, 2025, 06:53:01 pm
content: Quote from: Performa01 on October 01, 2025, 06:27:30 pmArroganceis usually adefensiveposture!!Most of the knowledgable folks around here, like you, provide a high degree of patience and help making the learning experience for most enjoyableCan't imagine why someone would select a new ~$1K UNI-T DSO over a Rigol or Siglent. UNI-T has little history with higher performing DSOs, Rigol and Siglent have multiple decades!! The amount of quality technical resources here provide the end user with another layer of quality customer service (often better than the OEM factory!!). Siglent is outstanding, Rigol needs more help but still present and helpful, however we don't see much of anything for higher performing UNI-T DSOs.Hopefully this new DSO won't follow the path of the Fnirsi DSOs and leave the new owners technically stranded.Best

author: Martin72
author_rank: Super Contributor
timestamp: October 01, 2025, 07:34:02 pm
content: In the end, support is paramount; it determines broader success or failure.Communication behavior, firmware updates, and complete documentation are key points for customers.What good is a good scope to me if there are hardly any bug fixes, my questions are not answered or are answered inadequately, and I have to get half of the functions from forums and YouTube videos instead of them being described in the manuals..(as an example, without mentioning any specific names)Unit-T is supposed to have an EU branch in Germany, which would be a first step.But when I look at their “shop,” it seems a bit “sloppy”; the German website is full of grammatical errors and is a mix of German and English.https://uni-t-shop.eu/deI also sent them an email to the address listed there. The reply was in more or less good English, and the time of day it was sent suggests that it was answered from China.Left a mixed impression, but perhaps everything is still under construction and will change/improve over time.For example, the 2000 series 12-bit scopes:https://uni-t-shop.eu/de/collections/upo2000hd-seriesPre-ordering is understandable, but it is strange that the official direct shop does not display prices directly.