Terralink+ with TrueEC™

Real-Time Substrate Sensor for Precision Crop Steering

TerraLINK+ is a high-performance substrate sensor designed to deliver real-time moisture, EC, and temperature data directly from the root zone. Using advanced Time Domain Reflectometry (TDR) technology, it provides stable, high-resolution measurements—even in high EC environments—enabling precise irrigation and crop steering decisions throughout the entire growth cycle.

Key Features

Real-Time Measurement

• Instant substrate feedback with no delay
• Monitor irrigation response as it happens
• Enables precise timing for irrigation and dryback control

TDR Technology (Time Domain Reflectometry)

• Measures moisture via signal timing, not field estimation
• More reliable than capacitance-based sensors
• Maintains accuracy across varying substrate conditions

High EC Stability (TrueEC™)

• Designed for environments with increasing nutrient concentration
• Minimal signal distortion in high EC conditions
• Ensures consistent readings from early veg to late flower

Integrated Crop Steering Support

• Compatible with Growlink Co-Pilot system
• Provides real-time data for automated recommendations
• Supports stage-based optimization and yield improvements

Why TerraLINK+?

raditional substrate sensors often rely on electric field estimation, which can become unreliable as nutrient levels increase. This leads to delayed updates and blurred irrigation signals.

TerraLINK+ solves this by:

• Delivering real-time data instead of interval-based readings
• Providing stable measurements independent of EC fluctuations
• Allowing growers to react instantly and refine irrigation strategies

Result: more consistent crop steering and improved yield control.

Measurement Capabilities

• Volumetric Water Content (VWC)
• Pore Water Electrical Conductivity (ECpw)
• Temperature
• Relative Permittivity (dielectric measurement)

All parameters are measured directly in the substrate for accurate root-zone insights.

Technical Specifications

Moisture & Permittivity

• Range: 0–100% VWC
• Resolution: 0.1%
• Accuracy: ±2.5% FS
• Repeatability: 0.3% RMS

Electrical Conductivity (Pore Water EC)

• Range: 0–15 dS/m
• Resolution: 1 µS/cm
• Accuracy: ±2.5–5%

Temperature

• Range: -40 to +55 °C
• Resolution: 0.1 °C
• Accuracy:
  • ±0.25 °C (5 to 35 °C)
  • ±0.5 °C (-15 to 55 °C)

Stability in High EC Environments

• Maintains accuracy with EC up to 4500 µS/cm
• Minimal measurement drift

Relative Permittivity

• Range: 1–100
• Resolution: 0.1
• Accuracy: ±2% FS

Performance Comparison

Application

Ideal for:

• Precision irrigation and fertigation
• Commercial indoor cultivation
• Greenhouses and vertical farms
• Data-driven crop steering strategies

Benefits

• Improve irrigation timing accuracy
• Reduce water and nutrient waste
• Increase crop consistency across cycles
• Enable data-driven decision making
• Optimize yields and plant health