Growlink LINKS terraLINK+ with TrueEC

TerraLINK+: Research-grade substrate sensing

The Growlink TerraLINK+ Substrate Sensor is an advanced TDR substrate sensor with TrueEC technology for the most accurate moisture and EC sensing available. Measures volumetric water content, electrical conductivity, and temperature directly in the root zone. The Terralink+ with TrueEC delivers true dielectric EC measurement and TDR moisture readings so you can steer with confidence. TerraLINK+ delivers consistent data even in extreme dryback or high-EC conditions.Designed for commercial scalability, TerraLINK integrates seamlessly into Growlink OS and Crop Steering Copilot, enabling data-driven irrigation strategies, optimized resource use, and improved yields.

Key Features

• True EC Technology: True dielectric EC measurement — not capacitance-based estimates.
• TDR Accuracy: Time Domain Reflectometry for research-grade moisture readings.
• Triple Measurement: VWC, EC, and temperature from a single probe in the root zone.
• Copilot Compatible: Drives automated crop steering decisions through Growlink Copilot.
• Durable Design: Built for repeated insertion in substrate across multiple grow cycles.
• M8 Connection: Standard M8 connector for canopyLINK or HUB integration.

The Terralink+ connects to canopyLINK or the LINKS HUB as part of a complete LINKS ecosystem — delivering real-time substrate data to Growlink OS for automated crop steering and monitoring.

Specifications

• Measurements VWC, BEC, Pore Water EC, Temperature, Permittivity
• Technology True TDR (Time Domain Reflectometry)
• VWC Range 0–100%, ±5% FS accuracy, 0.1% resolution
• Bulk EC Range 0–6 dS/m (6000 μS/cm), 1 μS/cm resolution
• Pore Water EC 0–55 dS/m (Hilhorst model)
• Permittivity Range 1–85, 0.1 resolution, ±4% FS accuracy
• Temperature Range -40 to +55°C, ±0.25°C (5–35°C), ±0.5°C (full range)
• Waveguide 3-element, 5 cm, 316 stainless steel
• Operating Temp -30 to +55°C
• Power 4.2–15V DC, <10 μA idle, 118 mA read
• Interface SDI-12 V1.4
• Dimensions 15 cm × 3.3 cm (without cable)
• Weight 121 g (without cable)
• Cable Length 5 m or 10 m (included)
• Construction 316 Stainless Steel, Epoxy, ABS Plastic
• Connector M8
• Compatible With canopyLINK, LINKS HUB
• Substrate Types Rockwool, coco, peat, soil

Includes: a 2-meter M8 cable (M8 extension cables sold separately)