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Consumer Tip
A properly programmed smart controller requires initial site specific set-up and will make irrigation schedule adjustments, including run times and required cycles, throughout the irrigation season without human intervention.
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Controllers using weather-data from on-site sensors (qualifying models)
If the weather-based smart controller uses on-site weather data instead of a remote weather service, the on-site sensor must have the following (at a minimum):
- Solar radiation and/or temperature sensors
- Rain shut-off device (rain sensor or tipping bucket)
Qualifying Models Product Name Product Type 
Alex-Tronix Enercon PlusComplete Replacement Alex-Tronix Smart ClockComplete Replacement Alex-Tronix Universal Smart ModuleRetrofit/Add-on Aqua Conserve Aqua ET-9Complete Replacement Calsense ET2000eComplete Replacement DIG Leit 2 ETComplete Replacement Hunter ET System Retrofit/Add-on Hydrosaver ETICComplete Replacement Irritrol KwikDial Climate LogicRetrofit/Add-on Irritrol MC48E Climate LogicRetrofit/Add-on Irritrol RainDial Climate Logic Retrofit/Add-on Irritrol Total Control Climate Logic Complete Replacement NDS Raindrip WeatherSmartPro Complete Replacement Rain Bird ESP-SMT Retrofit/Add-on Rain Bird SST Smart ControllerComplete Replacement Toro TMC-424E-ID Climate Logic KitRetrofit/Add-on Weathermatic SL1600 Complete Replacement -
Controllers using weather-data from a remote weather source (qualifying models)
Weather-based smart controllers use weather data from remote weather stations via radio, pager or Internet signals. A rain shut-off device (rain sensor or tipping bucket) should be used in conjunction with the remote weather source.
Qualifying Models Product Name Product Type Calsense ET2000e Complete Replacement ETwater Hermit Crab Retrofit/Add-on ETwater Smart Controller Complete Replacement Hydrosaver ETIC Complete Replacement Irritrol Smart Dial Complete Replacement Rain Bird ESP-LX with ET Manager Cartridge Retrofit/Add-on Rain Bird ET Manager Retrofit/Add-on Rain Master RME Eagle PlusComplete Replacement Rain Master RME Eagle Complete Replacement Toro Intelli-Sense Complete Replacement WaterOptimizer Complete Replacement WeatherTRAK Complete Replacement -
Definitions
Complete Replacement: An ET controller that replaces the existing controller, including the base unit, with a weather-based smart controller and corresponding components.
ET: Abbreviation for evapotranspiration, the measure of evaporation from the soil and transpiration from plants.
On-site: Refers to weather information gathered by sensors placed on the property and connected to the controller. The data may be conveyed through wires or radio frequency.
Rain shut off device: Device that prevents the controller from activating the valves when a preset amount of rain falls. Types of rain shut-off devices include rain sensors and tipping buckets.
Remote: Refers to weather information gathered by sensors at another location such as a regional weather station. The data may be conveyed to the controller through satellite, radio frequency, Internet or phone lines.
Retrofit/Add-on: Software or components which are attached to a compatible, existing irrigation controller. The software/components convert a standard controller into a weather-based ET controller.
Sensors: Any of several products that quantify weather conditions used by weather-based ET controllers. Sensors include: solar radiation, precipitation, wind and barometric pressure.
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