Rain Bird 6-Station Expansion Module for ESP4ME Series - Hot-Swappable, Compact

Rain Bird's 6-station expansion module instantly increases an ESP4ME-series controller's capacity by six zones without interrupting operation.

Designed for homeowners, landscapers, and property managers who need more irrigation zones, this hot-swappable module adds six programmable stations to compatible Rain Bird modular controllers. It plugs into any open expansion slot and installs while the controller remains powered, so you can expand coverage with no downtime. Built specifically for the ESP-Me and ESP-SMTe families, the module is compact and engineered to integrate cleanly into existing Rain Bird systems.

How does this module increase my controller's capacity?

Adding the module extends the controller's available station count by six, letting you run more valves, zones, or drip lines from the same central unit. The controller recognizes the module and incorporates the new stations into its programming menus so schedules and run times can be managed together.

• Adds six additional programmable irrigation stations
• Stations appear in the controller's existing program structure
• Supports valves, drip zones, and specialty outputs managed from one interface

Can I install it without turning the controller off?

Yes — the expansion module is hot-swappable, so it can be inserted or removed while the ESP controller remains powered. This avoids interrupting active irrigation schedules or requiring shutdown during routine upgrades.

• Hot-swappable design for live installation
• No need to stop current watering programs
• Reduces service time and avoids system downtime

Which Rain Bird controllers will this module work with?

This module is engineered specifically for Rain Bird's ESP-Me and ESP-SMTe series modular controllers. It is not compatible with older ESP-Modular or ESP-SMT models, so confirm your controller series before ordering.

• Compatible: ESP-Me and ESP-SMTe series
• Not compatible: older ESP-Modular or ESP-SMT controllers
• Check the controller label or manual to verify series

Where should I install the module in my controller?

The module can be placed in any available expansion slot inside the controller cabinet. Its compact footprint lets it fit alongside existing modules and wiring, and the plug-in connection aligns with Rain Bird's modular layout for straightforward placement.

• Install in any open expansion slot
• Compact size fits standard Rain Bird modular bays
• Aligns with existing wiring harnesses for quick setup

Who is this for? This 6-station expansion module is ideal for homeowners expanding landscape irrigation, contractors adding zones during upgrades, and property managers needing to subdivide areas without replacing an entire controller. If you own a Rain Bird ESP-Me or ESP-SMTe controller and need more zones with minimal fuss, this module provides a reliable, field-serviceable solution.