Hand size Oscilloscope from Gearbest

Review of a low cost handheld Oscilloscope from Gearbest. This is the DSO138 Oscilloscope.
https://www.gearbest.com/Transistor-Tester-_gear/?lkid=21143654
https://www.gearbest.com/development-boards-c_11297/?lkid=21143654

https://www.gearbest.com/testers-detectors/pp_009471063829.html?wid=1433363?lkid=21143654

Gearbest provided this product, at no cost to me, for review on this channel. I was free to do the review how I wanted with no strings attached.

Видео Hand size Oscilloscope from Gearbest канала Kiss Analog