Rain Gauge w/ Rachio 3

[Mo1176]

I have 2 wires from the rain gauge.
Does it matter which wire goes to S1 and 24 vac?

[meckisland]

If you want to add two controllers S1 and S2 would the other two wires go on the -24V terminal?

[gaustin]

@Mo1176, it doesn’t matter.