What a great review. Quickly showed the many positives about the unit and also pointed out the inaccurate claim for bandwidth. Still a rather nice unit for the hobbiest. Thank you for sharing.

I am just rediscovering electronics after retirement (was a Radio Shack rat in my youth!), and this scope works perfectly for my needs in my price range. I don't need 120 MHZ to prove that a 555 timer circuit works. Maybe someday I will graduate to more complex circuits, but not until I have figured out all the fundamentals. Nice review, very helpful.

Imagine having one of these thirty years ago! It would have been simply mind blowing.. I love these little things. Very handy tool.

Just ordered this from Banggood. I will use it for testing Fog Horn outputs (732hz, clock signals & possibly dirty outputs on battery chargers) offshore in Gulf of Mexico. Thanks for your review.

Great Review. Looks really solid for the price. Perfect for somebody who needs something portable. 45 MHz isn't bad. Anything more you would probably want to use a benchtop anyways. I have the FNIRSI portable and I love it as second scope to my Rigol. I use it frequently for quick signal checks. The Mustool looks a little nicer than mine.

Excellent review, thanks por sharing

Oh cool! I literally just took my Hantek 2C42 out of the box yesterday night. I was looking at these MUSTOOL's also, though didn't see this specific model listed on eBay or Amazon. Darn... or maybe not. Looks like now when specifically searching for the make and model, there are three listings on eBay, though two are like ~twice the price. Thing I like about the Hantek that sold me, was the software and data logging. Plus better higher voltage DC/AC specs... even though probably wouldn't push to the limits. Reads like can upgrade the firmware to the more expensive models options too.

Now it's interesting to see what's inside. Please do a teardown.

I think I'm a suitable customer for this type of product in a sense that I'm looking for some reasonably priced ($150-$1000) scope so that I don't need to rely on my "big scope" as much. No matter how I look at it, it seems better to pony up the extra cash for a Micsig scope. If this was 640x480 and 100MHz at -6dB at $150 price point, I'd be sold. Single channel is totally fine for this type of product and compact size. The overall look and layout of this unit is excellent. My OCD is UI responsiveness, and this unit delivers. Very good. Thanks for the overview!

I'd be curious to see a repeat of the tests using the 10x probe. Thanks for the video. Appreciated.

Just got mine in the mail! This is one hell of a big improvement over the DIY Arduino shit I've had to deal with in my home setup hahahah

If you started at 1Vpp the 3dB point should be at 709mVpp, not 500mVpp. So at 25MHz you are pretty close to the -3dB point.

This would come in handy working on line operated switch mode power supplies

I just bought a NanoVNA and the TinySA a few days ago after watching your videos and find them both truly amazing. I put them through a fairly extensive test with laboratory grade standards and they passed very well. I'm thinking about adding the MUSTOOL 120M to my collection of pocket-sized instruments but I have a question. My primary frequencies of interest are the HF ham bands DC to 30 MHz. If the 120M were used to tune up a radio within these frequencies, how quickly does the screen respond to a change in amplitude level. The digital scopes I used in the past always had a noticeable lag between a change in the input and the screen display. That made them almost useless for tuning up a rig so I always preferred to use an analog scope. Does the 120M respond fast enough for this purpose?

I'm looking for a small cheap Oscilloscope to test whether an inverter is genuinely pure sine wave or actually modified. Are you able to comment whether this would do that? I'm not an electronics person so need something simple and straight forward

When measuring 220v Mains- it cuts part of the negative half wave???

Can it be calibrated to show the correct voltage and frequency?

can it wait , and trig on pre set level , capture and show.... or no...

Are there cursors on this unit?

Interesting little scope! I think I'll keep my 2200x series Tek 100MHz scope. Still a fine review. What Omega are you a wearin'?

mine gets very slow between 20-500ms grid spacing

Where is this product come from?

Para frecuencias mayores de 5 Mhz debes poner 10X....

Do you see the discrepancies in the p-p voltage measurement with different vertical scales? At 70 MHz it was reading 286 mV on 200 mv/div but when you expanded the vertical scale to 100 mV/div, it read just under 500 mV. 80 MHz on 200 mV/div was reading 700 mV p-p. Even at 100 MHz, it was still reading about 500 mV p-p.

1:16 "it comes in a tote bag, official Naugahyde..." A frightening idea! What an impervious petrochemical _that_ was, started ugly and worsened with age. Nice review, who could have imagined a world of sub $100 scopes back in the Naugahyde Era 🤣

Did you figure out how to recall saved scope photos? Can you download thru the USB with a PC?

On the page on Bang-Good/Aliexpress etc. It shows a large screen beside the scope leading you to believe that you get a bench top screen with the scope. But I guess that's not thrown in with it.... pity. Coz that's why I'd say alot of people bought it in the 1st place. But it still seems to be a ok scope for 70 bucks/€65

Shouldn't you switch to 10x mode to measure anything beyond 5 MHz? This is what user manual says for other inexpensive oscilloscopes, and probably for this one too.

Do they have an Firmware update option to fix bugs?

Your unit was a returned used one, they originally got screen protectors.

15:20 What the he.... is happening here? It jumps from reading less than 400mV at 80MHz to reading more than 700mV just by You changing timebase? Or am I missing something? I have been looking for a review of this, so thank you for doing this. Now if someone would do a review of the OWON HDS200 Series that would be great :-)

Too bad that this little guy doesn't have separate X & Y inputs. Otherwise it seems okay if you realistically expect 30 Mhz resolution from it, IMHO. I just don't understand why the Chinese company's overrate their instrument specifications. I mean, you could label this model DSO as the 30M, and sell a faster (60 Mhz capable) model at say 60M, and finally a faster/fastest model still (120 Mhz capable)model at 120M and people would at least be able to actually buy the instrument that fits their needs. Advertising this oscilloscope as good up to 120 Mhz is not allowing the customer to decide for him/herself... I just don't get it.... Thank you for the awesome review IMSAI Guy. I appreciate you sir! Fred

You're a pretty generous grader. Shouldn't the spec be the 3 dB point? Of course I'd be a generous grader too if people were giving me free stuff! ;-)

100mhz em 1x, deveria ser em 10x

What it's cost

Completely off subject You see on eBay, Tons of HP power meters in all shapes and sizes like the 435A and 435B they sometimes sell for $10-$15 without the thermistor. Could a smart guy like you make the thermistor? Then a guy like me could have another useless piece of vintage cool looking gear hanging around😂

A toy?

Stop comparing it to a Nano VNA (size, weight).....That is useless,pointless and worthless...Not every viewer has one...Might as well compare it to a tile in your kitchen for that matter.