Rain Bird ESP-ME3 Modular Irrigation Controller — 4 to 22 Stations
Take full control of your irrigation system with the Rain Bird ESP-ME3 modular controller. Starting with 4 stations and expandable up to 22, this versatile controller suits everything from small residential gardens to larger commercial landscapes. WiFi ready with the optional LNK2 module, it can be upgraded to a smart controller for remote management from anywhere.
Features & Benefits
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Expandable 4 to 22 Stations — Start with 4 zones and grow your system by adding hot-swappable 3 or 6-station expansion modules as needed
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WiFi Ready — Add the Rain Bird LNK2 WiFi module to upgrade to a smart controller with EPA WaterSense certification and remote access
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4 Programs, 6 Start Times Each — 24 total start times across 4 independent programs for maximum scheduling flexibility
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Indoor/Outdoor Installation — Comes with power plug and weather-resistant outdoor cabinet, suitable for garages, sheds, or exterior walls
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Large 3" Backlit Display — Easy to read and program, even in dark garages or sheds
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Non-Volatile Memory — 100-year data retention saves your programming; 10-year lithium battery maintains time and date during power outages
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Seasonal Adjustment — Adjust watering by program from 5% to 200% to match seasonal conditions
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Rain Sensor Bypass — Per-station rain sensor bypass lets you override the sensor for specific zones when needed
Smart Watering Capabilities (with LNK2 WiFi Module)
- Remote access and control from your smartphone
- Weather-based automatic schedule adjustments
- Save up to 30% on water usage with smart scheduling
- EPA WaterSense certified when paired with LNK2
Watering Schedule Options
- Custom 7-day calendar
- Cyclic 1-31 day interval
- Odd/even day calendar
- Compliant with all major watering restrictions
Specifications
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Brand: Rain Bird
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Model: ESP-ME3 (ESP4ME3)
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Base Stations: 4
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Max Stations: 22 (with expansion modules)
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Programs: 4 independent programs
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Start Times: 6 per program (24 total)
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Display: 3" backlit LCD
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Power: 240VAC input, 24VAC output
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Installation: Indoor or outdoor
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WiFi: Ready (LNK2 module sold separately)
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Memory: Non-volatile 100-year retention
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Battery Backup: 10-year lithium (time/date)
What's Included
- Rain Bird ESP-ME3 controller base unit (4 stations)
- Outdoor-rated cabinet
- Power plug
- Mounting hardware
Frequently Asked Questions
How do I add more stations?
Purchase 3-station or 6-station expansion modules and simply slot them into any of the three available expansion bays. Modules are hot-swappable — no need to power down the controller.
Can I control it from my phone?
Yes, by adding the Rain Bird LNK2 WiFi module (sold separately). Once connected, you can manage your irrigation schedule remotely via the Rain Bird app.
Is it suitable for outdoor installation?
Yes. The ESP-ME3 comes with a weather-resistant outdoor cabinet designed for wall mounting in exposed locations, garages, or sheds.
