TrolMaster - Substrate Sensor Node (VWC - EC & Temp)(WN-9)

Brand: TrolMaster

The TrolMaster WN-9 Substrate Sensor Node is a precision probe designed to expand and enhance the capabilities of the WCS-9 monitoring system. Built for professional cultivation environments, it delivers accurate, real-time readings of moisture (VWC), electrical conductivity (EC), and temperature directly within the root zone-helping operators make data-driven irrigation and feeding decisions.

Key Features

• 3-in-1 sensing: measures volumetric water content (VWC), EC, and temperature
• Designed as an expansion node for the WCS-9 Substrate Sensor system
• Stainless steel probe spikes for accurate internal root zone measurements
• Daisy-chain capability supports up to 4 sensor nodes per display
• Improves accuracy by averaging readings across multiple substrate points
• Enables advanced irrigation strategies like "Feed on Demand"

Best For

• Increasing monitoring accuracy across large containers or slabs
• Eliminating variability caused by dry spots or channeling
• Precision irrigation and fertigation control
• Greenhouse, indoor, and controlled environment agriculture
• Commercial cultivation and research facilities

Compatibility

• System: WCS-9 Substrate Sensor Display (required)
• Controllers: Aqua-X, Aqua-X Pro, Hydro-X, Hydro-X Pro, Tent-X, Green-X
• Expandable: Up to 4 WN-9 nodes per WCS-9 unit

Specifications

• Water Content (VWC): 0-100%
• EC Range: 0-30 mS/cm
• Temperature Range: 32-122degF (0-50degC)
• Power Input: 5V / 0.1A
• Measurement Interval: ~1 minute

What's Included

• WN-9 substrate sensor node probe
• 12 ft daisy-chain control cable

By adding multiple WN-9 nodes, growers can capture data from several points within the substrate and generate a more reliable average of root zone conditions-reducing guesswork and improving consistency across the entire crop.

Note: This is an expansion sensor and requires a WCS-9 display unit for operation.