Appreciate the concern, but my safety or the equipment’s safety isn’t at risk here. The cell I have (Pentair IC40) has an integrated flow and salt sensor. If either are low, the system is off. The low power draw of the system is specifically what I’m after to know to check the cell to see why it’s not generating.
I just installed the Shelly this afternoon, which is why I’m posting after not getting the expected result out of the switch input.