The Rain Bird ESPSM3 3-Station Expansion Module is the practical way to grow your smart irrigation system without replacing your existing controller or interrupting irrigation schedules.. This compact American-made module adds three additional stations instantly, allowing you to expand from 4 up to 22 stations gradually.
Designed for Saudi Arabia’s demanding climate, the ESPSM3 operates reliably in extreme heat up to 65 °C.. Whether you are expanding a villa garden, a farm, or a residential compound, this module gives you full flexibility with zero downtime.
Technical Specifications.. Rain Bird ESPSM3
- Model: ESPSM3
- Brand: Rain Bird
- Country of Origin: United States of America
- Type: 3-Station Expansion Module
- Additional Stations: 3 stations
- Compatibility: ESP-ME3, ESP-M, ESP-SMT, ESP-SMTe
- Installation Method: Hot-Swappable
- Operating Voltage: 24 V AC
- Current: 0.5 A per station
- Operating Temperature: Up to 65 °C
- Dimensions: 13.5 × 8.5 × 3.2 cm
- Weight: 0.3 kg
- Warranty: 3 years
- Certifications: cULus, FCC Part 15B
- Included Accessories: Quick installation guide
Key Features & Practical Benefits
Hot-Swappable Expansion Without System Shutdown
Thanks to advanced Hot-Swappable technology, the ESPSM3 can be installed while the irrigation system is running.. No power cut, no controller shutdown, and no reprogramming required. Simply insert the module and it starts working immediately.
Full Compatibility with Rain Bird ESP Controllers
The ESPSM3 is engineered to work seamlessly with Rain Bird ESP-ME3, ESP-M, ESP-SMT, and ESP-SMTe controllers.. This guarantees stable operation, perfect communication, and long-term system reliability.
Flexible Gradual Expansion Up to 22 Stations
Start with three additional stations and expand gradually as your landscape grows.. By adding more ESPSM3 modules, your system can reach up to 22 total stations without unnecessary upfront costs.
Simple Installation in Any Available Slot
The controller automatically detects the module once installed.. There is no required order or specific slot, giving you complete flexibility during installation and maintenance.
Typical Use Cases
- Large villas and residential gardens: Add new irrigation zones without replacing the controller
- Small and medium farms: Expand irrigation coverage gradually
- Residential compounds and rest houses: Flexible scaling based on landscape growth
- Sports clubs and golf areas: Controlled zone expansion with minimal downtime
- Public parks and agricultural projects: Long-term scalable irrigation planning
Installation & Initial Setup Guide
1. Open the controller door and identify available expansion slots.
2. Insert the ESPSM3 module gently until it clicks into place.
3. Connect valve wires to Station A, B, and C, and connect common wires.
4. Power on the controller and verify the new stations appear automatically.
5. Run a manual test for 2--3 minutes per station and adjust programming as needed.
Important Safety Notes
- Confirm controller compatibility before purchase.
- Ensure the electrical system can handle additional stations.
- Avoid forcing the module into incorrect slots.
- Professional installation is recommended for best results.
Why Buy from Al-Watani Al-Muhaydib
- Exclusive official Rain Bird distributor in Saudi Arabia
- Over 40 years of experience in the Saudi irrigation market
- Authentic products imported directly from the USA
- Comprehensive after-sales support and local expertise
Don’t replace your controller.
Don’t interrupt irrigation.
Just expand intelligently..
Order the Rain Bird ESPSM3 Expansion Module today.. and future-proof your irrigation system.
Frequently Asked Questions (FAQ)
How many stations does the ESPSM3 add?
Each ESPSM3 module adds three additional stations.. Multiple modules can be used to reach up to 22 total stations on compatible controllers.
Can the ESPSM3 be installed while the system is running?
Yes. Hot-Swappable technology allows installation without stopping irrigation or cutting power.
Which controllers are compatible with the ESPSM3?
The ESPSM3 is compatible with Rain Bird ESP-ME3, ESP-M, ESP-SMT, and ESP-SMTe controllers.
What is the difference between ESPSM3 and other expansion modules?
The ESPSM3 is designed for residential ESP controllers and adds three stations.. Other modules such as ESPSM6 are intended for larger commercial systems.