Rain Bird ESP-ME3 WiFi Controller

The Rain Bird ESP-ME3 is a modular irrigation controller starting at 4 zones and expandable to 22 zones for larger properties and commercial applications. This professional-grade controller accommodates growing irrigation systems through hot-swappable 3-zone or 6-zone expansion modules. The large 3-inch backlit display provides easy programming visibility in all lighting conditions.

WiFi capability requires the LNK2 module (sold separately), transforming the controller into a smart, WaterSense-certified system. With WiFi enabled, the controller uses weather data to adjust schedules automatically, potentially saving 30% on irrigation water. The Rain Bird app provides remote programming, monitoring, and alerts for system issues.

Flow monitoring compatibility (with optional sensor) detects broken pipes and stuck valves, alerting you to problems before they waste water or damage landscapes. The 10-year lithium battery maintains clock and date during outages while non-volatile memory preserves all programming. For professional landscapers and homeowners with complex irrigation systems, the ESP-ME3 provides expandable, smart-capable control with Rain Bird's commercial reliability.