Easily expand your Rain Bird ESP-Modular, ESP-Me, ESP-SMT or ESP-SMTe Series Controller with this 3 station hot-swappable module, which can be added without powering down the controller. Modules can be installed in any available slot. Mix and match new SM6 six station expansion modules along with SM3 three station modules to cover anything from 4 to 22 stations.
- Compatible with Rain Bird ESP-M, ESP-Me, ESP-SMT and ESP-SMTe series irrigation controllers