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

At this point I've lost track of how much FNIRSI equipment I own. I have at least two oscilloscopes and two of these scopemeters, plus a Geiger counter/RF/magnetic field meter, LCR meter, volatile gas detector, portable soldering iron, and I'm not even sure what else :) This is another nice, inexpensive product with loads of features and excellent build quality. I bought it because I need to set up a mobile lab and while I don't often need a scope on the road, I OCCASIONALLY need one, so buying a scopemeter was the right path. Like all of FNIRSI's multifunction devices, it's packed with useful features. All the probes you'd need are included. Multimeter and oscilloscope are full-function and the display is bright and legible for both. If you're used to FNIRSI's touchscreen scopes, well, this isn't like that - it is more like a traditional buttons-and-knobs scope, but not quite. The learning curve isn't too bad and you'll be familiar with it in a half-hour of tinkering. UI defaults to Chinese, or at least it did for me - if you don't read Chinese, you'll have to navigate blind to the settings screen, where - luckily - Chinese/English selection is the first option. It's pretty obvious how to get there. Chinese is also the first language in the instruction manual but the English version is right after it and is easy to understand. Another great product!

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.

Excellent handheld multimeter, oscilloscope, signal generator. Very reliable and easy to use. Good size, versatility, portability, and battery life.

Item arrived ahead of schedule (took only 3 days with free shipping). Reasonably well translated manual, but unclear how to get into the global settings, took me about an hour to get the menus switched to English. Oscilloscope works well and has plenty of features for the price. Display is clear and bright, good quality probes included. Good value, just needs to be easier to switch to English. Only tested to 500KHz so far. Nice case

It’s really an outstanding meter for the cost. I feel like the battery should last longer, it seems like it takes a long time to charge, and response time for the multimeter in auto mode is slow, but I bought it for the scope function and it works really well for that. i like that is has a built in signal generator too. It comes with color coding rings for the oscilloscope probes, but they did not include yellow rings which seems stupid because the two channels are yellow and blue, so I ended up using red and blue rings. I liked it so much I bought two of them, so I can keep one at the office and one at home for bench testing.

Works great and displays fast. I am happy with my purchase.

A very accurate and easy to use meter oscilloscope and signal generator are great and handy add ons

Wow, these guys make a lot of instruments! So I chose the FNIRSI. I started exploring the user interface and found a maze. My closet gear is Tek and Fluke. How complicated can you make an oscilloscope? Well, when you look at how many different models FNRSI makes, your answer is there. They seem to create different models with different menu mazes. The company's own video prides itself on their vast tree of functions. But after trying to navigate to basics I got lost and lost interest. In spite of all the promise, the cool look, the huge variety of instruments that FRNSI makes (and the nice carrying case it came with ;-) ). It was tediously slow to use. You want a scope or a Rubic’s cube? And then the bugs started, many leading to the FNIRSI 2C53T bricking up, with NO way to recover, other than waiting for the battery to run down. Updating the firmware changed nothing. No fun. One star, returning. I had also ordered a similarly featured unit from a smaller company, ZOYI, that turned out to have a clear menu and button structure with direct access to functions, like it was designed by a multi-meter company. I prefer that. It goes to show that an impressive range of models and features s no proof of a company's footing.

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

Osciloscópio portátil apresenta uma construção bem robusta, simples de usar. Qualquer coisa, pode usar o manual ou pesquisar no youtube o canal do fabricante que acha videos curtos explicando o uso. Além disso, vem com uma bolsa para guardar o dispositivo. Bom custo benefício pelas funcionalidades que oferece. Mas a tela não é tão grande, mas para pequenas aplicações já é suficiente.

Good product and orginal

It's a great product for all technicians.I had used this product before in another country its very nice and easy to use.