Enter your base controller information to find compatible WaterSense labeled add-on or plug-in devices, which can be weather-based, soil moisture-based, or integrate weather- and soil moisture-based technologies. Add-on or plug-in devices can be paired with compatible base controllers to achieve the water efficiency and performance attributes outlined in the WaterSense Specification for Weather-Based Irrigation Controllers and the WaterSense Specification for Soil Moisture-Based Irrigation Controllers.