Q&A: How to connect RS1000 5-wire rain sensor to IIC-800-WIFI?

IIC-800-WIFI terminals:

RS1000 5-wire rain sensor:

Please connect the white wire and 1 red wire to 24-, the brown wire to S1, and the other red wire to 24+. The yellow wire does not need to be connected.
The jumpers of 24- and S2 of IIC-800-WIFI do not need to be removed.