GrowLink

What GrowLink Controllers and Sensors Do for Growers

GrowLink products solve the biggest pain points in modern indoor growing: inconsistent climates, manual fertigation errors, and blind spots in the root zone. The GrowLink Core Controller and EC-6 manage HVAC, lighting, CO2, dehumidifiers, and fans across multiple rooms, while the Precision Irrigation Controller (PIC) automates shot timing and valve control for true 4-phase crop steering (P0–P3). terraLINK and terraLINK+ substrate sensors use TDR technology to report live VWC, EC, and root-zone temperature, feeding the Copilot AI engine that fine-tunes irrigation and nutrient recipes in real time. The result is tighter room-to-room consistency, lower water and nutrient waste, and higher-quality finished plants.

Types of GrowLink Products Available

The GrowLink ecosystem is fully modular. Environmental control runs on the Core Controller, EC-3/EC-6, and All-In-One Connect Controller. Precision irrigation is powered by the PIC, and nutrient dosing is handled by the GrowLink Nutrient Doser, which supports up to 16-part blends including pH and additives. The terraLINK and ESM1 sensor families monitor substrate and environmental data, while the LINKS Hub and Integration Hub for TrolMaster allow you to connect existing equipment without ripping out your current setup. Everything ties together through Growlink OS — a cloud platform with mobile app, dashboards, alarms, scheduling, and open API support (BACnet, Modbus, SDI-12) for true scalability.

Why Growers Choose GrowLink

GrowLink stands out because it is open, modular, and built around the way commercial growers actually work. Installation takes hours instead of weeks, hardware scales from a single room to multi-site operations, and the Copilot AI turns raw sensor data into actionable irrigation and fertigation decisions. Whether you are running a craft indoor room, a vertical farm, or a multi-zone greenhouse, GrowLink reduces labor hours, eliminates costly mixing mistakes, and delivers the consistency commercial markets demand.

Frequently Asked Questions

How does a GrowLink system get set up in my grow room?

A GrowLink build starts with a central controller — typically the Core Controller or EC-6 — connected to Wi-Fi and paired through the GrowLink mobile app. From there, you add LINKS devices, environment sensor modules, terraLINK substrate sensors, and irrigation or dosing hardware as needed. Because the platform is modular and uses long-range wireless or wired communication (up to ~500 ft), most rooms can be commissioned in a single afternoon and expanded later without rewiring.

How is GrowLink different from TrolMaster?

TrolMaster is known for rock-solid local climate, lighting, and CO2 control, while GrowLink leads on analytics, AI-driven crop steering, and cloud workflows. The two are not mutually exclusive — GrowLink's Integration Hub for TrolMaster brings existing TrolMaster hardware into Growlink OS, so many facilities run both side by side and gain the strengths of each platform without replacing equipment.

What is crop steering and how does GrowLink support it?

Crop steering is a precision irrigation method that manipulates substrate VWC and EC across four phases (P0 ramp-up, P1 saturation, P2 maintenance, P3 dry-back) to push plants into vegetative or generative growth. GrowLink supports the full workflow with terraLINK substrate sensors for live root-zone data, the Precision Irrigation Controller for automated shot delivery, and the Copilot AI rules engine that adjusts timing and volume on the fly based on what your plants are actually doing.

Is GrowLink worth it for a smaller operation?

Yes — while GrowLink is engineered for commercial scale, the modular LINKS line and entry-level controllers let smaller and scaling growers start with one or two rooms and add hardware as they grow. Users consistently report saved labor hours, better consistency between cycles, and the peace of mind that the same platform will still fit when they expand to additional zones or sites.