Google+ post by Marco “marcolino76” Lamanna on 2018-12-26 00:30:18 UTC

A look at that V/A module says that there is nothing on that board to prevent a religious experience crossing it and going up to whatever you have plugged in. Possibly making the whole thing live and … exciting.

Does it tell you your power factor?

If they were clip-on transformers, I might consider one. But we have 2 phases and the breaker box has bus bars ^^;

A typical Japanese home will have 2 phases and a total of 6kW. The 60A breaker is not per phase

Those two devices are PZEM-004T. See this previous post