The bugs and lockups are disturbing though, especially at that price point. They should have gotten a second unit to rule out a faulty device for some of the issues.
What bugs ?
One of the main problems is that you have to know what you are using what for.
For me, the matter was over when PWM signals or the simulation thereof were measured.
But that is beside the point.
We bought this current clamp because we wanted to measure small standby currents.
Before we could use this current clamp, we had to have it calibrated externally and the second one has now successfully passed this type of calibration.
I therefore only see two possibilities.
Either the video is largely rubbish, or the calibration carried out according to international standards is rubbish.
Due to the principle, I tend towards the former.