Rain Bird Smrt-Y Soil Moisture wiring to sensor terminal

Is there a way to wire the RainBird Smrt-y Soil Moisture sensor to the Sensor terminal on the Rachio 3? I have it working properly per the Rachio instructions which bypasses the S1/S2 terminal. If I could hook it up to the Sensor terminals I could get notification on the app that the sensor has activated. Much appreciated.