The TrolMaster WCS-2 is a commercial-grade 3-in-1 substrate sensor that continuously measures volumetric water content, grow-media temperature, and electrical conductivity (EC) directly in the root zone. Unlike reservoir or runoff measurements, it provides real-time data from inside the growing medium, helping operators monitor actual root-zone conditions and execute data-driven irrigation and crop-steering strategies. The five-prong probe connects to a compact LCD communication module with an addressing button and integrates with Aqua-X, Aqua-X Pro, and Hydro-X Pro systems.
• SKU: WCS-2
• Brand: TrolMaster
• Sensor Type: 3-in-1 substrate sensor
• Measurements: Volumetric Water Content (%), Grow-Media Temperature, EC
• Probe Configuration: 5-prong sensor assembly
• Display: Compact LCD communication module with addressing button
• Connection: RJ12 cable
• Compatible Controllers: Aqua-X NFS-1, Aqua-X Pro NFS-2, Hydro-X Pro HCS-2
• Maximum Sensors: Up to 50 per NFS-2 or HCS-2; up to 8 per NFS-1
• Compatible Substrates: Rockwool, coco coir, soil and other growing media
• Installation: Probe inserted horizontally into the growing medium
• Recommended Probe Position: Approximately one-third of the way up from the bottom of the container or rockwool block
• Calibration: Requires calibration to the specific growing medium and nutrient solution
• Monitoring: Local LCD, controller display and TrolMaster TM+ app
• Data Logging: Historical graphs for water content, temperature and EC
• Alerts: Configurable high/low limits for all three parameters with remote notifications
• App Compatibility: TrolMaster TM+ for iOS and Android
• Daisy-Chain: Multiple sensors can be connected through the TrolMaster RJ12 architecture
• Extension: TrolMaster RJ12 extension cables can be used for longer sensor runs
• Included: 5-prong probe, LCD communication module and RJ12 cable set
• Standalone Operation: No — requires a compatible TrolMaster controller
• Not Compatible With: Aqua-X Plus NFS-3 or Tent-X TCS-1; these systems use the WCS-3
Key Advantage: The WCS-2 measures water content, EC and temperature directly inside the root zone, giving growers a much clearer picture of actual substrate conditions than relying only on reservoir or runoff measurements. Individual sensor data, historical graphs and configurable alerts also make it practical for monitoring irrigation uniformity and dry-back behavior across multiple zones.