he Rain Bird ESP-4ME3 is a versatile, modular outdoor irrigation controller, designed for residential and commercial irrigation systems.

With built-in modular expandability, the ESP-4ME3 starts as a 4-station controller and can be expanded up to 22 stations using Rain Bird’s hot-swappable expansion modules.

It features Wi-Fi compatibility via the LNK2 Wi-Fi Module (sold separately), allowing remote control and monitoring via the Rain Bird mobile app.

The user-friendly interface, combined with advanced scheduling options and seasonal adjustments, ensures efficient water management while reducing waste.

Key Features:

✔ Modular Station Expansion – Starts at 4 stations, expandable up to 22 stations.
✔ Wi-Fi Ready with LNK2 Module – Upgrade to smart irrigation for remote access and control.
✔ Simple & Intuitive Programming – Large backlit LCD screen with user-friendly interface.
✔ Flexible Scheduling Options – 4 independent programs with up to 6 start times per program.
✔ Rain Sensor & Flow Sensor Compatibility – Automatically adjusts irrigation based on rainfall and flow conditions.
✔ Seasonal Adjustments (0% to 200%) – Optimize watering based on climate and seasonal changes.
✔ Weather-Based Smart Watering (Wi-Fi Mode) – Utilizes weather data to optimize irrigation schedules.
✔ Non-Volatile Memory – Retains programmed schedules even after power loss.
✔ Master Valve/Pump Start Circuit – Ensures proper water pressure and system efficiency.

Technical Specifications:

• Model: ESP-4ME3
• Number of Stations: 4 (Expandable to 22 with modules)
• Programs: 4 independent programs
• Start Times Per Program: 6
• Wi-Fi Compatibility: Yes (Requires LNK2 Wi-Fi Module – Sold Separately)
• Power Supply: 230VAC
• Enclosure Type: Weatherproof, Outdoor Rated
• Sensor Compatibility: Supports Rain Bird Rain & Flow Sensors
• Max Station Run Time: 6 Hours
• Seasonal Adjustment Range: 0% to 200%
• Operating Temperature: -18°C to 60°C
• Certifications: CE, UL, cUL, C-tick, FCC

Dimensions:

• Height: 20.3 cm
• Width: 24.6 cm
• Depth: 10.2 cm

Applications:

✔ Residential Gardens & Estates – Perfect for home irrigation with expansion capability.
✔ Commercial Landscapes & Office Parks – Ideal for large-scale irrigation with modular station flexibility.
✔ Drip Irrigation & Low-Flow Systems – Supports efficient watering for plants, trees, and shrubs.
✔ Smart Irrigation Management – Upgrade with Wi-Fi for cloud-based control and monitoring.

Benefits:

✔ Expandable & Future-Proof – Start with 4 stations and expand as needed.
✔ Wi-Fi Ready for Smart Control – Upgrade with LNK2 for remote access via Rain Bird App.
✔ Weather-Based Adjustments – Reduces water waste and ensures efficient irrigation.
✔ Durable & Weatherproof – Outdoor-rated enclosure for long-term use.
✔ Reliable Power Supply – Designed for efficient, long-lasting performance.

Why Choose the Rain Bird ESP-4ME3?

The Rain Bird ESP-4ME3 is a powerful, modular irrigation controller, offering scalability, smart irrigation options, and intuitive scheduling for residential and commercial properties.

With Wi-Fi capability, advanced water-saving features, and a durable outdoor design, this controller ensures long-term reliability and efficiency.

Important Note:

Product images are for reference only and may not always reflect exact scale or size.