On a sunny day (Sat, 02 Jan 2021 16:06:45 +0100) it happened Deloptes
 wrote in :

>Jan Panteltje wrote:
>
>> It is a useful universal thing that you can use for anything like for
>> example measuring stuff in your car or whatever, without disconnecting or
>> cutting wires etc. I would not buy something specialized for just USB.
>
>USB-C and a device using such connector is not like a car electronics (I
>know the topic here is power supply) and besides you can not measure A or
>mAs without breaking the circuit.  If I am wrong let me know.

No, that clamp on meter measures to a few mA,
without breaking any connections.
Use the zero button before you measure.



>In case of data flow you need an oscilloscope as suggested by Martin
>Gregorie.

That is an other thing, I have a scope, never used it for USB data flow
there are plenty of utiities to check that.



>

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