DISCLAIMER: Rachio is NOT affiliated or authorized by RAIN BIRD; the RAIN BIRD brand soil sensors are manufactured by RAIN BIRD. 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. Rachio offers soil saturation management tools without the need for soil sensors by using Climate Skip or Flex Daily Schedules to skip watering schedules BEFORE it rains based on estimated moisture levels.
The Rachio Controller is compatible with the Rain Bird SMRT-Y Soil Moisture Sensor. It will operate similar to a rain sensor when the moisture threshold is reached by interrupting the common wire and suspending all future watering events for the zone it's connected to until the soil moisture level dries out. There is no need to configure the sensor in the advanced settings.
To install a SMRT-Y Soil Sensor, please reference the wiring diagrams below for assistance with wiring on your Rachio controller. Note, wiring colors may vary on your system.