Now with both Simple Smart Programming and Advanced ET watering features, the Rain Bird® ESP-SMTe smart control system combines the proven simplicity of the Extra Simple Programming (ESP) controller family with the accuracy of weather-based control. To program, simply input a few key details, such as zip code, allowed watering days and the plant/soil type for each zone. Then the ESP-SMTe waters only when the landscape requires it and your customers save an estimated 30% + in water.