I began using oscilloscopes with the Tektronix with different drawers; fifty years ago or so.
Oscilloscopes are some somewhat improved crystal balls: the quality of the measurement is proportional to the quality of the person doing the measurement. For when I have to take critical measurements which are dependent on the ability of the o'scope trigger circuit, I have an analogue (CRT) o'scope dedicated to this. In a CRT o'scope, the beam moves with the input signal directly, so I can evaluate if the variations are caused by the signal, or the o'scope. A digital o'scope able of the same discrimination is priced like a luxury automobile.
I use the device in this video like a "multimeter with benefits" when I have to see separately the AC and DC components of a signal, evaluate the electrolyte in a battery, check the IF stages of a radio receiver (467 KHz, 10.7 MHz, 76 KHz), depth of modulation, and so on.
The designer of this o'scope skimped on buffer memory size wherever they could. To my complaints, the seller replied: "Buy a Rigol". Yeah, sure. This isn't a true o'scope, but a multimeter with benefits.
Greetings from the UK,
Anthony

Im an apprentice working at a small shop which doesn't have a scope. During my last block we used an awesome Pico unit for a bunch of diag & it really made me want to get used to using them! I naturally cant afford a Pico on my own but this did look like a decent little unit to get myself sort of adapted to using them more often! This video really helped me decide if it was worth the money to try this thing out!

2:11 For sure, the meter is far more accurate than the power supply.

Mine has been great, but I'm a backyard diy working on my own car, so most of my tests are if a component is okay or not. I'm using it as a guide to where problems may be and then decide if I can fix it or take it to a mechanic. Great video.

Its a shame that when you watch a demo of these types of testers they never show how to to connect them

The waveform of a 50MHz sine wave is distorted, it's fine at 30MHz though.
Triggering in normal mode is erratic, so if you need it to reliably capture single events, use that mode instead.  Normal is okay if it doesn't matter if it misses some triggers.

Good video screen size is a little small 😊

Very Good review. Of the FRSINI product reviews you are the first to demonstrate their use in an automobile. I was curious if it was possible to see the cam/crank correlation, which you demonstrated it could. I appreciate your straight forward evaluation. Is this a professional scope, no, but an affordable start, yes. As to diagnosis this could verify whether a voltage signal is present and affordable enough to have one in your own tool box.

This is best demo ever!

Just bought one. I got a pico and wanted something a little more portable to get more familiar with scopes. Great review

Great review, nicely detailed, important to note mismatch on connectors with other aftermarket probes.

I wonder of you can review fnirsi's newer 2d15p 100mhz dual ch scope that seems to have a 1M sampling depth which might be better as an automotive scope vs the 20c53t? Would love your expert opinion on that one.

I wasn't aware of this company, much apricate sharing the product and I will definitely be looking into one for sure. It looks like a great "quick grab" scope just to see if signals are present before breaking out the big scopes for more in depth diagnosing in detail.

Could you use some type of BNC adapter to allow your paddle to be used?

Experience master mi respect para ustes saludes noel matute

Worth it. If you are building a bench, you got a nice multimeter, signal generator and scope for a nice price.

Hello,wishing you a great 2025.what is your opinion of the ads 1013d  and can you recommend a budget scope for under $200.

The FNIRSI 2C53 2ch tablet scope looks like a good budget scope. I've seen others on the tube using it and I've wanted to try one. Lots of cool options for people on budgets👍

Sir we can store can network  graph  for analysis

Nice tool 👍