{"title":"Weathermatic SLM Modules","description":"\u003cdiv class=\"category_desc\"\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eCompatible with SmartLink\u003c\/li\u003e\r\n\u003cli\u003eConnections for up to 3 different 2-wire paths for maximum installation flexibility\u003c\/li\u003e\r\n\u003cli\u003eMaximum of 48 Zones plus Master Valve\u003c\/li\u003e\r\n\u003cli\u003eHot-swappable installation\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003c\/div\u003e\r\n\u003c!-- split --\u003e\r\n\u003cdiv class=\"cat-desc-bel\"\u003e\r\n\u003ch2\u003eSLM Smart Line Modules\u003c\/h2\u003e\r\n\u003cp class=\"nomtop\"\u003eDiscover our Smart Line SLM Weathermatic Modules. Controls 2-48 zones!\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-weight: bold;\"\u003eSmart Line Modules\u003c\/span\u003e\u003cbr\u003e Choose from the best of Weathermatic's Smart Line modules that will best fit your need.\u003c\/p\u003e\r\n\u003c\/div\u003e","products":[{"product_id":"weathermatic-12-zone-smartline-timer-module","title":"Weathermatic SmartLine SLM12 12-Station Expansion Module","description":"\u003cp\u003eThe Weathermatic SmartLine SLM12 is a 12-station expansion module that adds scalable zone capacity, on-board diagnostics, and SmartLine ET intelligence to compatible controllers. It supports both Basic and Smart modes so installers can use conventional programming or enable automatic ET-based adjustments for improved water management.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12-zone expansion:\u003c\/strong\u003e Adds up to 12 irrigation stations to compatible SmartLine controllers (SL4800, SL1600, PL1600 and similar), allowing simple capacity increases without replacing the controller.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual operating modes:\u003c\/strong\u003e Basic mode offers conventional programming; Smart mode uses ET Watering to automatically adjust duration, frequency, and soak times based on environmental data.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiagnostics and troubleshooting:\u003c\/strong\u003e Fault review shows open\/shorted zones; on-board multimeter reports transformer voltage and milliamps; built-in valve locator helps identify and exercise solenoids.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance review:\u003c\/strong\u003e Menus display ET deficits by zone, accumulated run times, maximum run limits, minimum soak times, and recent high\/low temperature history to fine-tune schedules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote management:\u003c\/strong\u003e Compatible with the SmartLink network for remote access and monitoring via computer, tablet, or smartphone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstaller-friendly:\u003c\/strong\u003e No battery required; modules must be installed left-to-right with no gaps and require AC power for recognition. Programmable rain delay and standard installation documentation simplify setup.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eDesigned for contractors and facilities that need weather-responsive, scalable irrigation control, the SLM12 provides clear diagnostics, valve locating, and SmartLine connectivity to reduce water use and simplify service. Manuals and installation guides are available for site-specific setup and commissioning.\u003c\/p\u003e","brand":"Weathermatic","offers":[{"title":"Default Title","offer_id":43673770057,"sku":"SLM12","price":229.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1987\/5531\/products\/SLM12-2_48a30892-c110-41a7-8e5b-908bce7227f8.jpg?v=1503341414"},{"product_id":"weathermatic-2-station-module","title":"Weathermatic SLM2 SmartLine 2-Station Expansion Module","description":"\u003cp\u003eExpand a Weathermatic SmartLine controller quickly and cleanly with the SLM2 2-station expansion module. Designed for use with the SmartLine SL800 series, this compact slide-in module adds two additional irrigation zones and integrates with SmartLine features so you can scale a small residential controller without replacing the base unit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAdds 2 irrigation zones to compatible Weathermatic SmartLine controllers (SL800 series).\u003c\/li\u003e\n\u003cli\u003eSlide-in, hot‑swappable design lets you install or replace modules without powering down the controller.\u003c\/li\u003e\n\u003cli\u003eController recognizes the module automatically upon insertion—no extra programming required beyond zone setup.\u003c\/li\u003e\n\u003cli\u003eEnables SmartLine features such as Auto Adjust\/ET watering and SmartLink network connectivity when used with compatible controllers and accessories.\u003c\/li\u003e\n\u003cli\u003eCompact, durable module built for field reliability and simple slot‑style installation; follow the controller manual for slot order and wiring.\u003c\/li\u003e\n\u003cli\u003eIdeal for upgrading small residential systems or adding zones to an existing SL800 installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIncludes links to SmartLine documentation and installation guides with wiring diagrams and safety notes; consult the controller manual for transformer capacity and detailed installation procedures. If you need help confirming compatibility with your controller model, refer to the SmartLine series manuals or contact technical support.\u003c\/p\u003e","brand":"Weathermatic","offers":[{"title":"Default Title","offer_id":43673771401,"sku":"SLM2","price":44.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1987\/5531\/products\/SLM2-2_39168ba4-d559-46b0-9711-238707bf385a.jpg?v=1503341415"},{"product_id":"weathermatic-4-zone-timer-module","title":"Weathermatic SmartLine SLM4 4-Zone Expansion Module","description":"\u003cp\u003eThe Weathermatic SmartLine SLM4 is a 4-zone expansion module that increases the station capacity of compatible SmartLine controllers. Engineered for quick, reliable expansion, the SLM4 lets installers and contractors add four additional stations per module without disrupting existing schedules.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAdds four additional stations to SL1600 SmartLine controllers, expanding capacity in 4-station increments.\u003c\/li\u003e\n\u003cli\u003eHot-swappable slide-in design installs without powering down the controller or reprogramming programs.\u003c\/li\u003e\n\u003cli\u003eIndoor\/outdoor rated housing and commercial-grade connectors for long-term field durability.\u003c\/li\u003e\n\u003cli\u003eDirect module-to-controller connection aligns with SmartLine channels for fast, tool-free installation and secure seating.\u003c\/li\u003e\n\u003cli\u003eWorks with SmartLine system features — ET watering adjustments and SmartLink network access when paired with SLW on-site sensors.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eInstallers should insert modules in sequential module positions as indicated in the SL1600 manual. Product documentation, installation guides, and spec sheets are available to help with wiring, module sequencing, and system planning. For larger systems, multiple SLM4 modules can be combined up to the controller’s maximum station capacity; consult the SL1600 technical specification for exact limits.\u003c\/p\u003e","brand":"Weathermatic","offers":[{"title":"Default Title","offer_id":43673771465,"sku":"SLM4","price":73.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1987\/5531\/products\/SLM4-1.jpg?v=1549294694"},{"product_id":"weathermatic-slm12-1600-weathermatic-sl1600-12-zone-module","title":"Weathermatic SLM12-1600 12-Zone Expansion Module for SL1600","description":"\u003cp\u003eThe Weathermatic SLM12-1600 is a 12-zone expansion module designed to extend the capacity of compatible SmartLine and ProLine controllers. Specifically engineered for use with the SL1600 and PL1600 families, this hot‑swappable module adds reliable zone capacity while preserving the controller’s on-site diagnostics and programming capabilities. Install modules in sequence for correct zone numbering; the SL1600\/PL1600 automatically recognizes additional modules with no special programming required.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpand capacity by 12 zones\u003c\/strong\u003e — increases a compatible SL1600 or PL1600 controller to support additional valves without replacing the base unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHot‑swappable installation\u003c\/strong\u003e — insert or remove the module without powering down the controller; automatic recognition initializes new zones immediately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOn-board diagnostics\u003c\/strong\u003e — fault review, on-board multi‑meter, and stored program backtrack help identify open\/shorted zones and measure circuit milliamp values.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in valve locator\u003c\/strong\u003e — integrated valve locator function assists in identifying and troubleshooting individual solenoids.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced review menus\u003c\/strong\u003e — view ET deficits by zone, daily temperature history, maximum run and minimum soak times, and accumulated run-time statistics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart watering features\u003c\/strong\u003e — supports programmable rain delay and plant type inputs (preset crop factors and custom values) for precise zone tuning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for professionals\u003c\/strong\u003e — rugged construction and industry-standard compatibility make it suitable for commercial and residential landscapes.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRefer to the included manual and the SL1600\/PL1600 installation instructions when fitting modules: modules must be installed sequentially with no gaps to maintain correct zone assignment. For programming, diagnostics, and full feature details consult the Weathermatic SL1600\/PL1600 documentation and support resources.\u003c\/p\u003e","brand":"Weathermatic","offers":[{"title":"Default Title","offer_id":40370164006972,"sku":"SLM12-1600","price":229.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1987\/5531\/products\/Weathermatic-SLM12-1600.png?v=1662618552"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1987\/5531\/collections\/71-T.jpg?v=1592856080","url":"https:\/\/www.sprinklersupplystore.com\/collections\/weathermatic-slm-modules\/model_smartline.oembed","provider":"Sprinkler Supply Store","version":"1.0","type":"link"}