Rachio compatibility with Toro Wireless Rain Sensor

Wiring Instructions for a Toro Wireless Rain Sensor

DISCLAIMER

Rachio is NOT affiliated or authorized by TORO; the TORO brand rain sensors are manufactured by TORO. This article is intended for instructional and compatibility purposes only.

Rachio does not recommend the use of 3rd party sensors unless required by local code. Remember to always enable Weather Intelligence features to skip watering schedules BEFORE it rains; rain sensors will only skip watering schedules AFTER it rains.


Wiring Chart

Wire Color Gen 1 Rachio Gen 2 Rachio Rachio 3
White R1 (left-most yellow terminal) SC (Sensor Common - left of SP) VAC- (Sensor Common)
Red (a) R1 (paired w/ above) SC (paired with above) VAC- (paired with above in Sensor Common)
Red (b) C (white terminal - far right) SP (Sensor Power - far right) VAC+ (Sensor Power)
Brown R2 S1 S1

 

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Wiring Diagram

Rachio 3 Generation 2Generation 1

Rachio 3

Toro Wireless Rain Sensor with Rachio 3

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