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

Working with electronics on the bench (and sometimes in the field), I didn’t expect something this compact to replace multiple tools—but the FNIRSI 2C53T genuinely surprised me. Three Tools, One Device—And It’s Not a Gimmick Instead of juggling a scope, multimeter, and signal generator, I’ve got all three in one unit. It’s not just a “nice to have”—it actually saves space and speeds up troubleshooting. The device combines these functions into a single compact package, essentially replacing multiple instruments in one go. Performance That Punches Above Its Size For a handheld unit, the 50MHz bandwidth and 250MS/s sampling rate are more than enough for most embedded work, power electronics debugging, and general signal analysis. It captures signals cleanly, and the display is bright and easy to read. Great for Real-World Debugging I’ve used it on microcontroller projects, power supplies, and even quick field diagnostics. The built-in battery lasts several hours, which makes it practical when I’m not near my main bench setup. Feature-Rich Without Being Overwhelming Things like XY mode, persistence, and waveform math are included, which you don’t usually expect at this price point. The interface is straightforward enough that I didn’t need to dig through a manual to get started. A Legit Tool for Hobbyists and Pros This isn’t replacing a high-end bench oscilloscope—but it’s not trying to. For portability, versatility, and value, it’s one of those tools I keep reaching for more than I expected.

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.

It might be good... but with the pitiful documentation provided, it's hard to say. One has to figure out the functions and how to access them, and then how to set them up. Don't expect to find an answer if you want to know what the display means and how to quickly access a function. If you're not familiar with other oscilloscopes/meters of the same type, good luck... I'll update after I'll figure it out.... Update: I bought it as a secondary, on the go, small handheld troubleshooting tool. Using it for 2 weeks now. When one figures it out, it's pretty good and easy. I really like the small package. The Display is easy to read. Accuracy is good; I checked it in parallel with both Calibrated Multimeter and Oscilloscope, during troubleshooting, and other activities, and the values were pretty much on the marks. It's now my main meter for quick troubleshooting and checking prototypes. It's small size and easy reading are the main reasons. I also use it for first mockup calibration/tests on my prototypes. Note: Nonetheless a decent documentation would really help.

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

Works ok for my needs. At first recharge the battery only lasted 30 minutes, turns out to be operator error. I charged it until the battery icon was full, but discovered after some research, that behind the little rubber cover over the USB charging port, there is a little LED that turns green when fully charged. Took several hrs to fully charge and have used for several hrs with the battery icon on the screen still showing full.Also note that the signal generator will remain on after being turned on, even if you switch to O-scope or multi-meter function, it must be turned off while in the signal generator screen with the play/pause button. OFF/ON for the signal generator is indicated in the upper left corner of the screen. It takes a little bit to learn how to navigate through all the functions, but well worth it. For the price, Im very happy with it.

The best meter I've ever had, with built-in oscilloscope. Great battery life so far, the industrial design and screen user interface is very pretty, and it replaces two bulkier devices with just one that can do it all. Panel buttons & ergonomics are also top notch, I didn't have to read anything and could use it immediately.

Pro: It does what it promises, and for the price, it's not a bad unit. It comes with a nice carrying case and all the necessary probes. If you mostly want it as a voltmeter and just occasionally need to look at a waveform, it's probably a viable choice. If you already have a voltmeter though, buying this device makes less sense as the additional functionality is rather limited. Con: * The screen is too small, low resolution, and not bright enough, even at its brightest setting, to comfortably work with waveforms, and I wasn't even trying to use it anywhere near full daylight. Especially the grid is virtually impossible to see under any lighting conditions and there is no setting to make it brighter. * Having 8-bit resolution was standard for a long time, but economical scopes have come on the market a couple of years ago with 12-bit resolution at >= 1 GSa/s, leaving this device far behind in signal resolution. * Even more limiting is the miniscule 1k storage depth. With that limitation you can't really use the device for anything more than simple repeating waveforms. Trying to make sense of any digital data communications bus over any significant period of observation time will be next to impossible. * Limiting the signal generator to 50 kHz max is also a curious choice. With that, it's really not meant for anything more than checking out some audio equipment. * The BNC connectors on the device are closely spaced together and recessed to make them fit on the available space (top edge) and not stick out from the device. While this might look good, it makes it almost impossible to fiddle the probes' BNC counterpart onto the connectors, since you can't really grab and turn them, given the recessed position. Also, high quality probes that have thicker shielding at their base don't fit at all because of the recess. This is a major physical usability design flaw.

I Love this Multimeter! So far it has worked exceptionally. The scope functions well for diagnosing sensors, and it's very quick to respond. The readings are accurate, using it sise by side with my Fluke 87, and the auto function works smoothly without any hiccups. Well worth the money.

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。

muy útil

Decent quality and works as planned. I was very pleased with its performance so far. It was a good purchase for the price and for what I wanted it for.

Good

Nice product 👌