DSO 112 Bandwidth Test - Sine wave & Square

First half of the video:
Sine-Wave, 200KHz - 2 MHz

Second Part:
Square-Wave 200KHz - 4 MHz

-----------------------------------
I have to keep pressing the 'hold' button every time, because after the last firmware update, the trigger function doesn't work at all..

The time scale is set to 1us/div (minimum option) at all times.

I would say that this oscilloscope is useful in real life for signals up to 500KHz.
You can check and compare DC-DC converters and Switching PSUs for noise and ripple. Watch an I2C Bus and other basic staff like that.

It's portable and reliable and completely fulfills the purposes I bought it for.

If you need to take measurements on your signals, this is definitely not the tool to buy.
If you just want to take a look of "how a signal looks", if it's noisy or not, if it exists at all, etc.. it might be a nice cheap tool for the job.

-----------------------------------
The super beautiful function generator is made with an AD9850, an Arduino and a 1.8" TFT (ST7735), following this awesome tutorial:

-----------------------------------
Thanks for watching

[powerbatterychannel]

Thank you so much! This is the only video with real test of this device! Thanks a lot!

[otiebrown]

Thanks for the review.
Got the same result for 500, 000 Hz square wave.
A good low priced scope!