Rainbird 3 Station Module for ESP4M ESP4ME and ESPSMT Series Controllers<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Adds three additional stations to Rain Bird residential modular controllers</li><li>Hot-swappable 3-station expansion module can be installed without powering down the controller</li><li>Compatible with Rain Bird ESP-M， ESP-Me， ESP-SMT and ESP-SMTe series irrigation controllers</li><li>Can be installed in any available slot</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41TcFyPu9UL.jpg" noproxy>