Picture above is actually telling the whole story.

It is as simple as that.

USB to “tool” and tubes to test ports. No more to it.

Software can display any number of sensors, in one or two banks. Horizontal average line is for your reference.

Here shown to mimic a V12 and six double carburettors.

Software have two display modes -this one, and the “timeline”, so you can track all sensorvalues while revving engine to check linkage adjustment as well.