{"product_id":"rain-bird-espsm3-module","title":"Rain Bird ESPSM3 3-Station Expansion Module","description":"\u003cp\u003eThe Rain Bird ESPSM3 is a hot‑swappable 3‑station expansion module that increases the zone capacity of compatible ESP modular controllers without interrupting irrigation schedules.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdds three stations:\u003c\/strong\u003e Each ESPSM3 provides three additional valve stations to Rain Bird ESP modular systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHot‑swappable installation:\u003c\/strong\u003e Install or remove the module while the controller remains powered—no need to stop watering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide compatibility:\u003c\/strong\u003e Works with ESP‑M, ESP‑Me, ESP‑SMT and ESP‑SMTe series controllers (verify your model).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetains programming:\u003c\/strong\u003e Built‑in lithium battery and nonvolatile memory preserve time, date and schedules during power interruptions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact, slide‑in design:\u003c\/strong\u003e Fits any available expansion slot; modules can be stacked to expand capacity further (controller limits apply).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTechnical specs at a glance:\u003c\/strong\u003e Model ESPSM3 (MFG F38200), 120 VAC, 0.06 A, dimensions roughly 10.7\" W x 4.4\" D x 7.7\" H.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIdeal for homeowners and installers who need to grow an irrigation system incrementally, the ESPSM3 offers a low‑downtime, cost‑effective way to add zones. Always confirm controller compatibility and total station limits before installing multiple modules.\u003c\/p\u003e","brand":"Rain Bird","offers":[{"title":"Default Title","offer_id":43672994185,"sku":"ESPSM3","price":68.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1987\/5531\/products\/ESPSM3-2_f43a08bb-4b4e-4fec-9642-f29ccaf1b8fc.jpg?v=1503337592","url":"https:\/\/www.sprinklersupplystore.com\/products\/rain-bird-espsm3-module","provider":"Sprinkler Supply Store","version":"1.0","type":"link"}