Quimat Updated DSO Shell 2.4” TFT Digital Oscilloscope Kit with Power Supply and BNC-Clip Cable Probe Q15001 (Assembled Finished Machine)

I use this to measure power output of audio amplifiers. I have 4 ohm and 8 ohm resistors and an app to generate sine waves at various frequencies from my iPad. I then use the Quimat Digital O-Scope to measure rms voltage output just before clipping. It works fine for this and is so much cheaper than a full blown oscilloscope.

For 90 percent of all single-channel scope needs I've experienced, this unit would have been invaluable. I'm thrilled to now have two of them and don't need to lug around heavy scopes.The DSO Shell is tiny, easy-to-read, captures wave forms and can easily show most things that RPi/Arduino and other experimenters need during development work. It's awesome for the price. I bought a second unit to look at 3-phase wind turbine output, diode and SCR functions at my off-grid mountain property. It's a bit tricky to learn the controls but absolutely necessary so that this tool can be used efficiently. Thanks!

One main negative is that the power adapter to connect is not included which I feel should as a specific type is only allowed. The unit does feel a bit on cheaper side by the feel of the buttons. This device does provide helpful readings when testing electronics at resistors and other circuitry. The display is easy to read as well. Good starter.

Not for high end scope users. Basic unit which works well. I need it to measure waveform of consumer inverters, and to compare my diesel generator waveform with another gasoline generator. Surprisingly good unit for the price. Suggest you buy 9 volt adapter so you don't have to use the included power supply, its more portable that way. Buy 10 X BNC probe for voltages over 50 volts RMS: Part no is:https://www.amazon.com/gp/product/B07GNH99ZT/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1https://www.amazon.com/gp/product/B07GNH99ZT/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1

I received mine a couple of days ago and I have used it for measuring peak output voltages of my self built 18 volt Cmoy (Grado RA-1 clone). Even though the scope came with a power supply, I wasn't able to use it without an adapter (I live in Finland), so I built a PS from a DC plug and a 9 volt battery clip and got the scope working. I found out a possible bug while using the battery as a power source: once the battery voltage started getting lower, the peak-to-peak and RMS measurements showed too high values. Other than that the scope works well. It seems pretty accurate on lower frequencies, a 10 khz sine wave gives a measurement of 10 050-10 070 hz on the screen. All in all, it's a nice and inexpensive little oscilloscope (I was surprised how small it actually is).

Used to set car amp gain. Used on 1200watt amp. Amp was too much for it but connected one side to ground and cut the frequency power in half. It did the job but if u need to set big amps it just doesn't have the range.

This is perfect for what I needed, automotive diagnostics. I especially like the 1k reference that is included, great for checking the operation of the unit or a test signal to send into a circuit. Looks to be well made, fully assembled, and includes the 9V supply to plug in the wall.The only knock is the weak manual, it is for both the the fully assembled and assembly required models and is not terribly clear on the operation of the unit. Figured out how to set the options after connecting it the 1k reference signal and playing around a bit. If you need to understand how to use a scope this manual will be of no help, search YouTube.

For the price its hard to be critical of this, it does exactly what it says on the box, its simple and actually fairly quick. Ive been using this to measure ripple output from power supplies and it works surprisingly well, the auto trigger works nicely and the display is just big enough to get all of the information you need. This isnt a 1000 dollar oscilloscope, but for what it is it gives you all of the needed information.