{"product_id":"trolmaster-wcs-9-substrate-sensor","title":"TrolMaster WCS-9 Substrate Sensor | Multi-Node VWC, EC \u0026 Temperature Monitoring","description":"\u003cp\u003eThe \u003cstrong\u003eTrolMaster WCS9 Substrate Sensor Kit\u003c\/strong\u003e is TrolMaster's most advanced root zone monitoring solution, delivering highly accurate measurements of \u003cstrong\u003eVolumetric Water Content (VWC), Electrical Conductivity (EC), and root zone temperature\u003c\/strong\u003e across soil, coco, Rockwool and high-EC soilless growing media.\u003c\/p\u003e\n\u003cp\u003eDesigned specifically for growers who demand precision irrigation and advanced crop steering capabilities, the WCS-9 eliminates the limitations of traditional single-point substrate monitoring by allowing multiple sensor nodes to work together, creating a far more accurate picture of what is happening throughout the root zone.\u003c\/p\u003e\n\u003cdiv style=\"background: #e8f5e9; border: 1px solid #b7dfbb; padding: 18px; border-radius: 6px; margin: 20px 0;\"\u003e\n\u003cstrong\u003e⚠️ Important Compatibility Information\u003c\/strong\u003e\n\u003cp\u003eThe TrolMaster WCS-9 is \u003cstrong\u003eNOT compatible with the older Hydro-X HCS-1 controller\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eCompatible controllers include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAqua-X (NFS-1)\u003c\/li\u003e\n\u003cli\u003eAqua-X Pro (NFS-2)\u003c\/li\u003e\n\u003cli\u003eAqua-X Plus (NFS-3)\u003c\/li\u003e\n\u003cli\u003eHydro-X Pro (HCS-2)\u003c\/li\u003e\n\u003cli\u003eTent-X (TCS-1)\u003c\/li\u003e\n\u003cli\u003eGreen-X (GCS-1)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin-bottom: 0;\"\u003e\u003cstrong\u003ePlease review the compatibility table below before ordering.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f6f8f9; border: 1px solid #d9dee2; padding: 18px; border-radius: 6px; margin: 20px 0;\"\u003e\n\u003cstrong\u003e📦 What's Included In This Listing?\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e1 × TrolMaster WCS-9 Sensor Display\u003c\/li\u003e\n\u003cli\u003e1 ×\u003ca href=\"https:\/\/www.thehydrobros.com\/products\/trolmaster-wn-9-substrate-sensor-node\"\u003e TrolMaster WN-9 Sensor Node\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis product is a complete \u003cstrong\u003esubstrate sensor starter kit\u003c\/strong\u003e containing both the WCS-9 Sensor Display and one \u003ca href=\"https:\/\/www.thehydrobros.com\/products\/trolmaster-wn-9-substrate-sensor-node\"\u003eWN-9 Sensor Node\u003c\/a\u003e required to begin monitoring moisture content, EC and root zone temperature.\u003c\/p\u003e\n\u003cp\u003eThe WCS-9 Display acts as the communication hub between the Sensor Node and your TrolMaster controller. The WN-9 Sensor Node is the probe that sits inside your growing media and performs all moisture, EC and temperature measurements.\u003c\/p\u003e\n\u003cp\u003eEach WCS-9 Display can support up to \u003cstrong\u003e4 Sensor Nodes\u003c\/strong\u003e, allowing multiple measurement points throughout your grow room for more accurate root zone averaging.\u003c\/p\u003e\n\u003cp\u003eAdditional \u003ca href=\"https:\/\/www.thehydrobros.com\/products\/trolmaster-wn-9-substrate-sensor-node\"\u003eWN-9 Sensor Nodes can be purchased separately here\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eFor larger facilities, additional WCS-9 Displays can be integrated into the system using the \u003ca href=\"https:\/\/www.thehydrobros.com\/products\/trolmaster-rj12-splitter-hub-sph-1\"\u003eTrolMaster Hub\u003c\/a\u003e, allowing significantly more monitoring points across multiple grow rooms, irrigation zones and crop steering strategies.\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0;\"\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Additional Sensor Nodes, and TrolMaster Hubs are sold separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eWhat Is The Difference Between The WCS-9 Display And WN-9 Sensor Nodes?\u003c\/h2\u003e\n\u003cp\u003eThis is one of the most important things to understand before purchasing the WCS-9 system.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWCS-9 Sensor Display\u003c\/strong\u003e = The communication and control module that connects to your TrolMaster controller and your Sensor Node.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWN-9 Sensor Node\u003c\/strong\u003e = The probe that connects to the Sensor Display and the other end sits inside the substrate and measures VWC, EC and temperature.\u003c\/li\u003e\n\u003cli\u003eOne WCS-9 Display can support up to 4 WN-9 Sensor Nodes.\u003c\/li\u003e\n\u003cli\u003eSensor Nodes connect together using ECS-7 Daisy Chain Cables.\u003c\/li\u003e\n\u003cli\u003eThe system can display both individual node readings and averaged readings.\u003c\/li\u003e\n\u003cli\u003eAdditional Displays and Nodes can be added as your facility grows.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy The WCS-9 Is Different\u003c\/h2\u003e\n\u003cp\u003eMost substrate sensors only monitor a single point within the root zone. Unfortunately, root zones are rarely uniform. Water channeling, irrigation distribution issues, dry pockets and nutrient hotspots can all create misleading readings that fail to accurately represent what's happening across the entire root zone.\u003c\/p\u003e\n\u003cp\u003eThe WCS-9 solves this problem with an advanced multi-node architecture. By connecting multiple WN-9 Sensor Nodes to a single Display, growers can collect readings from several locations and calculate an averaged root zone value.\u003c\/p\u003e\n\u003cp\u003eThe result is a much more reliable picture of substrate conditions, allowing growers to make better irrigation decisions and implement advanced crop steering strategies with confidence.\u003c\/p\u003e\n\u003cp\u003eThis technology is particularly valuable in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRockwool cultivation\u003c\/li\u003e\n\u003cli\u003eCoco cultivation\u003c\/li\u003e\n\u003cli\u003eHigh-frequency fertigation systems\u003c\/li\u003e\n\u003cli\u003eFeed On Demand irrigation strategies\u003c\/li\u003e\n\u003cli\u003eCommercial crop steering applications\u003c\/li\u003e\n\u003cli\u003eLarge multi-zone grow facilities\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eMonitor Three Critical Root Zone Parameters\u003c\/h2\u003e\n\u003cp\u003eThe WCS-9 continuously measures the three most important root zone variables affecting plant performance.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolumetric Water Content (VWC)\u003c\/strong\u003e - Monitor substrate moisture levels, saturation and dry-backs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical Conductivity (EC)\u003c\/strong\u003e - Measure nutrient concentration within the root zone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature\u003c\/strong\u003e - Track root zone temperature to optimise nutrient uptake and plant health.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUnlike many competing sensors, the WCS-9 is specifically engineered to maintain accurate EC measurements even in high bulk EC environments and demanding commercial cultivation facilities.\u003c\/p\u003e\n\u003ch2\u003eFeed On Demand Irrigation Control\u003c\/h2\u003e\n\u003cp\u003eThe WCS-9 is the foundation of TrolMaster's advanced \u003cstrong\u003eFeed On Demand\u003c\/strong\u003e irrigation strategy.\u003c\/p\u003e\n\u003cp\u003eInstead of relying solely on timer-based irrigation schedules, Feed On Demand uses real-time substrate moisture readings to automatically trigger irrigation events when moisture levels reach predefined thresholds.\u003c\/p\u003e\n\u003cp\u003eThis allows growers to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAutomate irrigation based on actual root zone conditions.\u003c\/li\u003e\n\u003cli\u003eAchieve more consistent dry-backs.\u003c\/li\u003e\n\u003cli\u003eImprove irrigation precision.\u003c\/li\u003e\n\u003cli\u003eReduce overwatering.\u003c\/li\u003e\n\u003cli\u003eImplement sophisticated crop steering strategies.\u003c\/li\u003e\n\u003cli\u003eRespond dynamically to changing plant demand.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUsers can create multiple moisture targets throughout the day including morning, midday and evening schedules while controlling irrigation shot sizes using Max On Time and Dry Back settings.\u003c\/p\u003e\n\u003ch2\u003eTM+ Pro App Monitoring\u003c\/h2\u003e\n\u003cp\u003eThe WCS-9 integrates directly with TrolMaster's free TM+ Pro App, allowing growers to monitor substrate conditions remotely from anywhere.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLive VWC monitoring.\u003c\/li\u003e\n\u003cli\u003eLive EC monitoring.\u003c\/li\u003e\n\u003cli\u003eLive root zone temperature monitoring.\u003c\/li\u003e\n\u003cli\u003eHistorical data charts.\u003c\/li\u003e\n\u003cli\u003eCustom alarm notifications.\u003c\/li\u003e\n\u003cli\u003eUnlimited historical data storage.\u003c\/li\u003e\n\u003cli\u003eNo subscription fees.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe TM+ Pro App allows growers to analyse historical trends, monitor crop performance and receive instant alerts whenever readings exceed user-defined thresholds.\u003c\/p\u003e\n\u003ch2\u003eTrolMaster WCS-9 Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSimultaneous VWC, EC and temperature monitoring.\u003c\/li\u003e\n\u003cli\u003eDesigned for soil, coco, Rockwool and high-EC soilless media.\u003c\/li\u003e\n\u003cli\u003eAdvanced multi-node averaging technology.\u003c\/li\u003e\n\u003cli\u003eSupports up to 4 Sensor Nodes per Display.\u003c\/li\u003e\n\u003cli\u003eFactory calibrated for Rockwool.\u003c\/li\u003e\n\u003cli\u003eSimple 100% saturation calibration process.\u003c\/li\u003e\n\u003cli\u003eDynamic refresh intervals.\u003c\/li\u003e\n\u003cli\u003e1-minute standard refresh rate.\u003c\/li\u003e\n\u003cli\u003e10-second refresh rate during Feed On Demand operation.\u003c\/li\u003e\n\u003cli\u003eSupports advanced crop steering strategies.\u003c\/li\u003e\n\u003cli\u003eFree TM+ Pro App integration.\u003c\/li\u003e\n\u003cli\u003eUnlimited cloud-based historical data.\u003c\/li\u003e\n\u003cli\u003eNo subscription fees.\u003c\/li\u003e\n\u003cli\u003eAffordable system expansion through additional Sensor Nodes.\u003c\/li\u003e\n\u003cli\u003eCompatible with Aqua-X, Hydro-X Pro, Tent-X and Green-X systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTrolMaster WCS-9 Controller Compatibility\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #2d6a4f; color: #ffffff;\"\u003e\n\u003cth style=\"border: 1px solid #cccccc; padding: 10px; text-align: left;\"\u003eController\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #cccccc; padding: 10px; text-align: left;\"\u003eMaximum WCS-9 Displays Supported\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #cccccc; padding: 10px; text-align: left;\"\u003eMaximum Sensor Nodes Supported\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003eAqua-X (NFS-1)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003e1\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003eUp to 4 Nodes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003eAqua-X Pro (NFS-2)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003e50\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003eUp to 200 Nodes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003eAqua-X Plus (NFS-3)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003e20\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003eUp to 80 Nodes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003eHydro-X Pro (HCS-2)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003e50\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003eUp to 200 Nodes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003eTent-X (TCS-1)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003e1\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003eUp to 4 Nodes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003eGreen-X (GCS-1)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003e1\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003eUp to 4 Nodes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #2d6a4f; color: #ffffff;\"\u003e\n\u003cth style=\"border: 1px solid #cccccc; padding: 10px; text-align: left;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #cccccc; padding: 10px; text-align: left;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003eInput Voltage\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003eMaximum Current Draw\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003e0.1A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003eWater Content Range\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003e0-100%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003eEC Range\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003e0-30 mS\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003eTemperature Range\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003e0-50°C (32-122°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003eOperating Humidity\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003e≤90% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003eRefresh Interval\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003e1 Minute (10 Seconds During Feed On Demand)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003eMaximum Nodes Per Display\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cccccc; padding: 10px;\"\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003ch2\u003eWCS-9 Installation \u0026amp; Operation Guide\u003c\/h2\u003e\n\u003cp\u003eThe sections below can be expanded as required.\u003c\/p\u003e\n\u003cdiv style=\"margin: 20px 0;\"\u003e\n\u003cdetails style=\"border: 1px solid #d9dee2; border-radius: 6px; margin-bottom: 12px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #f4f6f7; padding: 15px; font-weight: bold; cursor: pointer;\"\u003e1. Installation \u0026amp; Daisy-Chaining\u003c\/summary\u003e\n\u003cdiv style=\"padding: 15px; background: #ffffff;\"\u003e\n\u003cp\u003eThe WCS-9 uses a modular architecture consisting of a Sensor Display and one or more Sensor Nodes.\u003c\/p\u003e\n\u003cp\u003eAdditional Sensor Nodes must be connected together using ECS-7 Daisy Chain Cables before connecting to the WCS-9 Display.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnect Sensor Nodes together using ECS-7 cables.\u003c\/li\u003e\n\u003cli\u003eConnect the completed node chain into the WCS-9 Display.\u003c\/li\u003e\n\u003cli\u003eConnect the Display to your TrolMaster controller.\u003c\/li\u003e\n\u003cli\u003eEnsure controller firmware is updated before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eController connection locations:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNFS-1 \/ NFS-2 \/ NFS-3 → Medium Port\u003c\/li\u003e\n\u003cli\u003eHCS-2 → Sensors Port\u003c\/li\u003e\n\u003cli\u003eTCS-1 → Sensors Port\u003c\/li\u003e\n\u003cli\u003eGCS-1 → Sensors Port\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border: 1px solid #d9dee2; border-radius: 6px; margin-bottom: 12px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #f4f6f7; padding: 15px; font-weight: bold; cursor: pointer;\"\u003e2. Pairing Sensor Displays \u0026amp; Sensor Nodes\u003c\/summary\u003e\n\u003cdiv style=\"padding: 15px; background: #ffffff;\"\u003e\n\u003cp\u003ePairing is simple and follows the same process as previous TrolMaster sensors.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePress the addressing button on the WCS-9 Display to add it to your controller.\u003c\/li\u003e\n\u003cli\u003eShake the WN-9 Sensor Node to pair it with the Display.\u003c\/li\u003e\n\u003cli\u003eRepeat for additional Sensor Nodes.\u003c\/li\u003e\n\u003cli\u003eIf no nodes are connected, the Display will prompt you to add them.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEach Display can support up to 4 Sensor Nodes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border: 1px solid #d9dee2; border-radius: 6px; margin-bottom: 12px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #f4f6f7; padding: 15px; font-weight: bold; cursor: pointer;\"\u003e3. Viewing Sensor Data\u003c\/summary\u003e\n\u003cdiv style=\"padding: 15px; background: #ffffff;\"\u003e\n\u003cul\u003e\n\u003cli\u003eNormal refresh interval: every 1 minute.\u003c\/li\u003e\n\u003cli\u003eFeed On Demand refresh interval: every 10 seconds.\u003c\/li\u003e\n\u003cli\u003ePress the Display button to force an immediate refresh.\u003c\/li\u003e\n\u003cli\u003eThe Display automatically calculates average values from all connected Sensor Nodes.\u003c\/li\u003e\n\u003cli\u003ePress the button repeatedly to cycle through individual node readings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis allows growers to compare individual sensors against the average root zone value.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border: 1px solid #d9dee2; border-radius: 6px; margin-bottom: 12px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #f4f6f7; padding: 15px; font-weight: bold; cursor: pointer;\"\u003e4. Sensor Placement \u0026amp; Calibration\u003c\/summary\u003e\n\u003cdiv style=\"padding: 15px; background: #ffffff;\"\u003e\n\u003cp\u003e\u003cstrong\u003eCorrect sensor placement is critical for accurate readings.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInsert the Sensor Node horizontally.\u003c\/li\u003e\n\u003cli\u003ePosition approximately one-third of the way up from the bottom of the substrate.\u003c\/li\u003e\n\u003cli\u003eEnsure the media is fully saturated before calibration.\u003c\/li\u003e\n\u003cli\u003eWhen using multiple nodes, place each node into its own fully saturated block, slab or container.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNavigate to:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSettings → Calibration → Moisture\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThen perform the 100% saturation calibration process.\u003c\/p\u003e\n\u003cp\u003eThe WCS-9 uses a simplified calibration method that only requires calibration at the 100% saturation point.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Initial VWC must be at least 60% before the controller will accept calibration. If readings are below this threshold, an Out Of Range warning will be displayed.\u003c\/p\u003e\n\u003cp\u003eThe WCS-9 is factory calibrated for Rockwool, reducing setup time for Rockwool growers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border: 1px solid #d9dee2; border-radius: 6px; margin-bottom: 12px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #f4f6f7; padding: 15px; font-weight: bold; cursor: pointer;\"\u003e5. Feed On Demand Irrigation Setup\u003c\/summary\u003e\n\u003cdiv style=\"padding: 15px; background: #ffffff;\"\u003e\n\u003cp\u003eFeed On Demand replaces traditional timer-based irrigation scheduling with real-time substrate-driven irrigation events.\u003c\/p\u003e\n\u003cp\u003eThe controller monitors substrate moisture levels continuously and automatically triggers irrigation when moisture falls below user-defined thresholds.\u003c\/p\u003e\n\u003cp\u003eGrowers can create:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMorning moisture targets.\u003c\/li\u003e\n\u003cli\u003eMidday moisture targets.\u003c\/li\u003e\n\u003cli\u003eAfternoon moisture targets.\u003c\/li\u003e\n\u003cli\u003eCustom dry-back schedules.\u003c\/li\u003e\n\u003cli\u003ePrecision irrigation shot sizes.\u003c\/li\u003e\n\u003cli\u003eAdvanced crop steering programmes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDuring Feed On Demand operation, refresh intervals automatically increase to every 10 seconds to provide faster system response.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eCan I add more sensor nodes later?\u003c\/h3\u003e\n\u003cp\u003eYes. Each WCS-9 Display supports up to 4 WN-9 Sensor Nodes. Additional nodes are connected using ECS-7 Daisy Chain Cables.\u003c\/p\u003e\n\u003ch3\u003eDo I need a TrolMaster Hub?\u003c\/h3\u003e\n\u003cp\u003eNot necessarily. Most smaller installations will connect directly to the controller. The \u003ca href=\"https:\/\/www.thehydrobros.com\/products\/trolmaster-rj12-splitter-hub-sph-1\"\u003eTrolMaster Hub\u003c\/a\u003e is primarily used when expanding larger systems and adding additional Displays beyond the controller's native connection capacity.\u003c\/p\u003e\n\u003ch3\u003eCan I monitor multiple pots or slabs?\u003c\/h3\u003e\n\u003cp\u003eYes. This is one of the biggest advantages of the WCS-9. Multiple Sensor Nodes can be placed throughout the crop, allowing the system to calculate a more representative average root zone value.\u003c\/p\u003e\n\u003ch3\u003eCan I view readings remotely?\u003c\/h3\u003e\n\u003cp\u003eYes. The free TM+ Pro App provides remote access to live readings, historical graphs and alarm notifications.\u003c\/p\u003e\n\u003ch3\u003eIs the WCS-9 suitable for Rockwool?\u003c\/h3\u003e\n\u003cp\u003eAbsolutely. The sensor is factory calibrated for Rockwool and is specifically designed for high-frequency irrigation and crop steering applications.\u003c\/p\u003e\n\u003ch3\u003eCan the WCS-9 measure EC?\u003c\/h3\u003e\n\u003cp\u003eYes. The WCS-9 simultaneously measures substrate moisture content, substrate EC and root zone temperature.\u003c\/p\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 × TrolMaster WCS-9 Sensor Display\u003c\/li\u003e\n\u003cli\u003e1 × TrolMaster WN-9 Sensor Node\u003c\/li\u003e\n\u003cli\u003eConnection cables\u003c\/li\u003e\n\u003cli\u003eUser documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTake The Guesswork Out Of Irrigation\u003c\/h2\u003e\n\u003cp\u003eWhether you're implementing advanced crop steering strategies, optimising dry-backs in Rockwool, or simply looking for a more accurate understanding of what's happening inside the root zone, the TrolMaster WCS-9 provides the data needed to make better irrigation decisions.\u003c\/p\u003e\n\u003cp\u003eWith multi-node averaging, Feed On Demand compatibility, TM+ App integration and support for the entire TrolMaster ecosystem, the WCS-9 represents one of the most advanced substrate monitoring systems available today.\u003c\/p\u003e","brand":"TROL MASTER","offers":[{"title":"Default Title","offer_id":57243978301813,"sku":"13024","price":209.0,"currency_code":"CHF","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0561\/9092\/7032\/files\/img-fdb932686acb4472ab6843bdaa7cb827.jpg?v=1780433139","url":"https:\/\/www.thehydrobros.com\/en-ch\/products\/trolmaster-wcs-9-substrate-sensor","provider":"The Hydro Bros","version":"1.0","type":"link"}