They are all ways you can make oscilloscope probes that measure current. If you think of a scope as a voltage measurement device, you ought to watch the recent video from Keysight Technology (see ...

[Paul] knew that he could get an oscilloscope that would measure the microamp signals ... He’s trying to visualize what’s going on with the current draw of a microcontroller at various points ...

The Zoyi ZT-703S oscilloscope, multimeter, and function generator promises even better specifications than the Fnirsi 2C23T, ...

To determine peak voltage from an oscilloscope trace ... this is not the effective voltage of the trace. A more useful measure of a.c. voltage is the r.m.s. or 'root mean square' voltage.