It’s all kind of strange and lots of marketing woven into a story if you ask me. The skineffect remark made me laugh and doubting my technical education but hey, that was a long time ago.
I was kind of curious just like some others in what the Entech really measures.
Quote
This meter is a measuring instrument capable of monitoring and measuring the radio frequency noise ranging from 300KHz-700KHz present on 120VAC 60Hz power outlets.
The meter's speaker projects the amplified demodulated AM FM noise present on the power line under test. A very handy and capable meter designed to show the end user if the power supplied or generated is "clean" or "dirty". Dirty or noisy is undesirable for ANY home or business with amplified systems. This unit tests the cleanliness of the power being used. Clean power is what you'd want in your entertainment system for optimal sound clarity. Before you buy an expensive system make sure it's power line is clean as can be for the best sound quality with this meter."

It’s used here in combination with Shunyata in which Shunyata does make a difrence.

But

It also is used here on ASR post 38 with similar results but might be worth to look into.

I’m not saying that everything written over mains-power is BS but there is al lot of marketing.surrounding it

So trying it would be the only sollution when in doubt.

Some Meridian...