The ESP Modular Irrigation Controller is designed to maximize your productivity by saving you time and money. Easily expand from this 4 station base model up to 13 stations with 3 station hot-swappable modules, which can be added without powering down the controller.

Another example of Rain Bird's legendary reliability, the ESP Modular offers industry-leading surge protection, temperature tolerance and rugged construction. It improves upon Rain Bird's already easy-to-use ESP style of programming with a large, easy to read display and intuitive programming sequence, making this the most user-friendly irrigation controller in its class. The spacious cabinet and terminal locations make installation and wire-up a snap. And features like the Contractor Default™ program make service calls more efficient and earn you more money by taking less time! The Rain Bird ESP Modular: Maximizing your Productivity.

More Reliable:

• NEW! 5-year lithium battery (Rain Bird Exclusive) and non-volatile memory, keeps time, date and program schedule in case of power outage.
• Superior surge protection — withstands nearly 3 times higher electrical surges than competitive controllers.
• Plug-in transformer included. 
• Rain Bird quality construction and components.
• Fuseless, diagnostic circuit breaker identifies a station with valve or wiring problems and continues to water operable stations.

More Flexible:

• Easily expandable from a four station base model to 13 stations with the additon of 3-station modules at installation or in the future. Modules can also be installed in any available slot.
• NEW! Longer station run times add more flexibility for special applications such as drip.
• NEW! Programmable master valve allows pump to operate only as needed, resulting in greater flexibility in controlling the water source.
• NEW! Programmable Delay Between Stations allows additional time between zones for water well recovery or slow closing valves.
• Auxiliary Station™ can be set to bypass an active sensor to allow watering even if the other stations are disabled or can be set as a normal station.
• 365-day calendar with leap year intelligence means that you can set an “Odd” or “Even” day watering schedule and not worry about changing the date on leap years.
• Four irrigation cycle modes for maximum flexibility and compliance to all major watering restrictions (Custom 7-day calendar, cyclic 1-31 day interval, and odd/even day calendar).