EXPANSION MODULES
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2021/03/03
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An irrigation controller expansion module is an add-on component used with a modular irrigation controller to increase or enhance the controller’s capabilities without replacing the entire unit. Most irrigation controllers have a base number of output channels (often called stations or zones ) that each control a separate valve and watering area. An expansion module plugs into the controller and adds additional station outputs so you can manage more valves as your landscape grows.