The Interactions between Rain Delay, Rain Sensor, and Weather Algorithm :

The Interactions between Rain Delay, Rain Sensor, and Weather Algorithm Print

Created by: Ray Wang

Modified on: Fri, 7 Mar, 2025 at 7:58 AM

Rain Delay – A manual control that prevents watering for a specified duration set by the user.
Rain Sensor – Requires an external rain sensor, which automatically stops watering when rain is detected.
Weather-based Adjustment – Uses real-time weather data to dynamically adjust the watering percentage based on temperature, humidity, and precipitation.

Although these features serve similar purposes, they operate independently. The chart below outlines their differences:

Trigger	Action	Delay Time	Notes
*Rain Sensor*	Triggered by an external rain sensor. Stops watering of stations (except those set to Ignore Rain).	Built-in mechanical delay, adjustable by evaporation vents on the sensor.	Stations that are stopped, or scheduled to run during the delay time will NOT resume after the delay time is over.
*Rain Delay*	Manually set by the user. Stops watering of stations for a specified duration (except those set to Ignore Rain Delay).	Defined by the user.
*Weather-based Adjustment*	Watering percentage automatically calculated by the selected adjustment method, using real-time weather data.	No explicit delay time. Watering percentage is calculated based on weather conditions.	Accuracy depends on the proximity of your closest weather station.

Ray is the author of this solution article.

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The Interactions between Rain Delay, Rain Sensor, and Weather Algorithm Print