I notice on the wiring diagram for the Pro 4PM that each relay output seems to have its own L (Life/Hot) wire. This seems to hint at the fact these may be separated from the rest of the ciquit. Maybe only a bridge rectifyer toward Neutral to siphon of some supply current, but this would be to Neutral, so all of them 230V
So, would I be able to control (and measure) items that are on different phases with a single 4-switch Pro 4PM
Actual use case would be our campground, where each spot has a 1-phase socket, but alternating spots are on alternating phases
So we need to measure multiple single phases, all of a fairly low level.
We could of course use many ShellyPro1PM's, but I was wondering if I could use less Pro4PM