I have a Toro rain sensor installed but the feedback/info from the controller is lackluster at best.
In the app you specify which (generic) type of sensor you connected to the corresponding terminal. There is no manfuc or model specificity, just rain or soil sensor. From that point on there is no further feedback or indication whether its working and/or active in any terms. Hopefully a future firmware version will allow better feedback into activity or status.
I have listed some points that I feel need to be addressed for reference → Sprinkler Feature/Support Request