SUBSTRATE SENSOR

Terralink Substrate Sensor

Root zone sensor measuring volumetric water content, electrical conductivity, and temperature using capacitance technology. Integrates with Growlink OS and Crop Steering Copilot for automated irrigation.

$299.00
SKU: GL-LINK-Terralink

This item is currently backordered. Contact us for availability.

Made in USA Plug & Play Growlink OS
Why the Terralink

Precision data from the root zone.

Without accurate substrate data, irrigation decisions are guesswork. The Terralink delivers real-time VWC, EC, and temperature readings directly from the root zone, enabling precise crop steering and automated irrigation strategies.

Root Zone Data

Precise VWC, EC, and temperature directly from the substrate.

Capacitance Technology

Capacitance-based sensing for accurate, reliable substrate readings.

Crop Steering

Feeds real-time data to Copilot for automated irrigation strategies.

Multi-Substrate

Works in rockwool, coco, peat, soil, and other growing media.

Plug-and-Play

M8 connector — plug into canopyLINK and start sensing immediately.

Trusted Worldwide

Used by over 3,000 cultivators for precision irrigation decisions.

The Growlink LINKS System

Root zone intelligence for your grow.

The Terralink connects through canopyLINK to the LINKS HUB, feeding real-time substrate data into Growlink OS and Crop Steering Copilot for fully automated irrigation management.

Growlink LINKS system diagram showing Terralink connecting through canopyLINK to the HUB
Specifications

Technical details.

Measurements VWC, EC, Temperature
Technology Capacitance (FDR moisture, AC excitation EC)
VWC Range 0–100%
VWC Resolution ±0.1 (1–40), ±0.5 (40–81)
EC Range 0–23 dS/m
EC Accuracy 5% (0–7 dS/m), 15% (7–23 dS/m)
Temperature Range -40 to 80°C, ±0.5°C accuracy
IP Rating IP68
Operating Temp -40 to 85°C
Power 3.6–16V DC, 30μA standby
Interface SDI-12 V1.3
Dimensions 88 × 71 × 26 mm
Cable Length 5 m (included)
Connector M8
Compatible With canopyLINK, LINKS HUB
Substrate Types Rockwool, coco, peat, soil
Terralink Substrate Sensor
Built for

Who uses the Terralink.

Commercial Cannabis

Precision crop steering with real-time substrate data for consistent, high-quality harvests.

Greenhouse Operations

Automated irrigation scheduling based on actual root zone conditions across multiple substrates.

Craft Growers

Data-driven irrigation decisions replacing manual checks and guesswork.

Complete your system.

Build your system

Not sure which LINKS you need?

Use the System Builder to configure your setup, or talk to an expert who will spec it for your rooms.

Terralink Substrate Sensor
$299.00
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