2C53T Upgraded Handheld Oscilloscope, 50MHz Bandwidth, 3IN1 Digital Oscilloscope Multimeter DDS Generator, 250MS/s Sampling Rate, 19999 Counts, Voltage, Current, Capacitor, Resistor, Diode Test

This unit seems to gather some hate for not being like a full power oscilloscope. I say it is very cool for what it is, a voltmeter with oscilloscope functionality in a handheld. I have a full size Rigol dual channel scope I like a lot. The biggest difference is the full size has lots of knobs you can turn to smoothly change the timing, volt range and other features. But this is about the same price as a decent voltmeter, and I can certainly see taking this onsite to not just look at the voltage, but see what the line is doing and maybe do some advanced debug without hauling the big scope out.

This is simply the greatest thing slice bread. This oscilloscope / multimeter has no equivalent in the below-$100 category. How do I know? I keep buying them, looking for an oscilloscope at $80 with $400 features. Well, this time it worked, mostly. The screen is perfect, the menus are intuitive, the ergonomics is well thought out. You can take it with you thanks to the long lasting battery. The multimeter returns correct values within 0.02 or 0.03 volt, or so. The oscilloscope give me the same curves as my expensive bench one below 50 MHz. The only weird stuff was the wave generator, which works perfectly, until you ask it to give you 1 Hz. It’s downright bizarre. The easiest square wave to generate is off… Too easy?!?

I have had mine for a few days and have played with the functions, i am VERY impressed, it is a very pretty meter to look at and fun and easy to operate once you have the hang of finding features using the buttons, i use the multimeter and function generator but not the oscilloscope since i have a bench oscilloscope and prefer the larger screen for viewing waveforms. The only thing i would say is the sinewave on the function generator is not smooth and appears a little jagged, it's just the way Fnirsi generate the wave but i don't let it bother me. It comes with very nice probes both for the multimeter and the Oscilloscope. This meter is a joy to use, just buy one!

I bought this to set up my audio equipment in my car and so far I’m more than please with the results, after playing around with and seeing what I can do with it I’m hoping that I can inject a 40Hz signal and take a voltage reading at the same time I’m just not sure this meter will do just that but if it doesn’t I do have another voltmeter to get that measurement. We will see as time goes by and I play around with it to see what this thing will do. Of course I’ll give an update if after time it does more than expected or starts to disappoint. But either way I believe for what I know it can do at this point it’s well worth the money just having a handheld oscilloscope and voltmeter combined.

Nice handheld scope. Had it for a few weeks and it seems very functional. Compared some traces with a 4 ch LeCrow and it was very comparable (digital CMOS logic gates). It's a small screen for sure, and the grid lines are a little hard to see even at the highest brightness. The function generator is a bit limited - seems to go up to 50kHz. Another cheap handheld scope I had (and lost) went to 1M. There a multimeter mode as well that looks functional. It plugs into a PC but I think it's to transfer over screen shots - I don't see any SW on their web site to control it remotely over USB. A good deal for sure. A nice case, some ok probes, and some misc cables to use with the DMM are included. I checked them and they all worked in my copy

The resolution of the display screen is very low, the visual grain is very strong, and the screen is soft to the touch. Why can products be made of very comprehensive functions, but the display screen is made of poor materials? Another point, when you open the express delivery, you can see the outer packaging and think it is the wrong delivery(Chinese charactertics). All in Chinese, and a lot of Chinese in the manual book, I think it is unnecessary, which is very confusing to customers. The storage function of the oscilloscope is not powerful enough, and every time a file is named, 1.bmp, the 2.bmp etc can actually be named with a timestamp to make it more concise and easy to understand. Finally, the navigation settings of the software interface are not easy to operate. It takes a while to get used to it. Can not find rolling interface.

So far a rugged well built device. The DMM function works great and gives a very clear indication of your measurement. The Scope function works as good as my full size bench scopes and is very clear on the smaller screen. The Function/Signal generator works as advertised. Unit comes with 2 Scope probes, DMM leads and a BNC to alligator clip cable for use with the Func/Sig Generator. Quite satisfied with my purchase.

Needed a portable scope to measure AC noise on DC instrument signals, and this has worked out great. Great price point and the perfect tool for the job. Can do much more than what I’m currently using it for, which is good to know for future needs.

水晶振動子の動作確認用に使いましたが正確に発信周波数をとらえています。

Try this it's good Getting femiler with the product

Nice product 👌

Recently purchased, good, complex device, need more time. Thanks 👍

I have used the FNIRSI 2C53T for about few months. It is a small unit with multimeter,function generator and oscilloscope. This makes work easy on a bench. The auto mode is helpful, but I often choose the function myself (volts, ohms, diode, etc.). The oscilloscope is good for my needs. 50 MHz is enough for hobby and school/college work. The menu felt new at first, but after a quick read of the guide and a couple short videos, it was easy to use. The Auto key finds a signal fast. I still like to set the trigger by hand and change time/volts per division, so I can see the wave clearly. The screen is bright indoors. USB-C charging is simple. Battery life is fine for a day of light tests. The probes are OK for the price. For quick checks and projects, this tool saves time and space. I am happy with it and plan to keep using it.