Currently I have a Rain Bird RSDBEX normally closed, wired rain sensor connected in series to the common connectors of my RainMachine HD-12. I see the rain sensor can also be connected to pins 1 & 2 of the "hidden connector". I have several questions about this:
1. Is one method of connecting the rain sensor better than the other?
2. Is the optional rain sensor cable adapter ($3.99 + shipping) simply intended to make it easier to attach the rain sensor wires to the "hidden connector"?
Thanks for your help,
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