Q: The rain sensor has black, red, white, and green wires, how do I connect it to the IIC-800-WIFI?
A: Please remove the jumper from S1 and 24-port.
Please be careful not to remove the jumper of S2 and 24-port.
Please connect the green wire of the rain sensor to S1, the red and white wires to 24-port, and the black wire to 24+port.