LINKS DEVICE ECOSYSTEM

Start with one zone. Build the whole ecosystem.

LINKS makes it easy to automate irrigation, lighting, climate, power, nutrients, and sensors — one device at a time.

Plug-and-play setup Add devices as you grow Expert support Ships direct from Growlink
Growlink LINKS Full Room Bundle — modular plug-and-play controllers and sensors
BUILD YOUR SYSTEM

Build your system in 60 seconds.

Answer a few questions about your grow and we'll recommend the right LINKS setup — then add everything to your cart.

RECOMMENDED WAYS TO START

Not sure what to buy first? Start here.

Choose a starter kit based on what you want to automate first. Every kit works together and expands over time.

Best Place to Start

Monitoring Starter Kit

For growers who want real-time climate and root-zone visibility before adding automation.

canopyLINK Sensor HUB canopyLINK Sensor HUB $299
Terralink Substrate Sensor Terralink Substrate Sensor $299
Climalink Climate Sensor Climalink Climate Sensor $399
Starting at $997
Most Popular

Irrigation Starter Kit

For growers who want automated irrigation with root-zone visibility and climate monitoring.

canopyLINK Sensor HUB canopyLINK Sensor HUB $299
valveLINK Controller valveLINK Controller $299
Terralink Substrate Sensor Terralink Substrate Sensor ×2 $598
Climalink Climate Sensor Climalink Climate Sensor $399
Starting at $1,595
SHOP BY CATEGORY

Shop by what you want to control.

Choose a category to see the LINKS devices designed for that part of your grow.

Browse the complete LINKS ecosystem — every device, sensor, and accessory.

Free shipping on orders over $500 USD · Order direct from Growlink.

Control Hubs & Connectivity

2 devices
LINKS 8-Port Device HUB

LINKS 8-Port Device HUB

Connects all your LINKS devices for seamless control from anywhere.

Wi-Fi or Ethernet
$399
canopyLINK Sensor HUB

canopyLINK Sensor HUB

Connect all your climate and substrate sensors in one place for the most accurate grow-zone data.

Wi-Fi · Standalone or HUB
$299

Climate Control

2 devices
Climalink Climate Sensor

Climalink Climate Sensor

Aspirated climate sensor that measures temp, humidity, VPD, light, and optional CO₂ for precise environmental control.

Requires canopyLINK
$399
relayLINK

relayLINK

Versatile relay control for HVAC, humidifiers, dehumidifiers, and other mixed-voltage equipment.

Requires LINKS HUB
$299

Lighting Control

2 devices
digital lightLINK

digital lightLINK

Take charge of your lighting fixtures with precise control over intensity, spectrum, and timing for optimal plant growth.

Requires LINKS HUB
$149
4 channel lightLINK

4 channel lightLINK

Run and control up to four lighting channels from one device.

Requires LINKS HUB
$299

Irrigation & Substrate

3 devices
valveLINK Controller

valveLINK Controller

Automate irrigation valves across multiple zones with manual, scheduled, or sensor-triggered control.

Wi-Fi · Standalone or HUB
$299
Terralink+ with TrueEC

Terralink+ with TrueEC™

When capacitance stops being reliable, TDR takes over — the most accurate substrate moisture and EC sensing available.

Requires canopyLINK
$299
Terralink Substrate Sensor

Terralink Substrate Sensor

Measures soil moisture and EC for precision irrigation decisions from the root zone.

Requires canopyLINK
$299
Backordered

Power & Smart Control

2 devices
PowerLINK

PowerLINK

Automate lights, fans, pumps, and more with precise, outlet-level control built for serious growers.

Wi-Fi Only
$99
quadLINK Controller

quadLINK Controller

Four-outlet smart power control for running multiple devices with individual scheduling.

Wi-Fi · Standalone or HUB
$399

Nutrient Management

1 device
batch tankLINK Controller

batch tankLINK Controller

Monitors and controls nutrient mixing tanks for consistent feed recipes.

Wi-Fi · Standalone or HUB
$799

Sensors & Monitoring

1 device
Quantumlink light sensor

Quantumlink

Quantum light sensor for PPFD, DLI, and Lux — verify light at canopy level.

Requires LINKS HUB
$399

Accessories & Add-ons

19 items
HUB Connection Cable

HUB Connection Cable (3m)

Connect LINKS devices to the HUB.

$9.99
M8 Extension Cable 5m

M8 Extension Cable (5m)

Extend the reach of Climalink and Terralink sensor connections.

$26
M8 Extension Cable 10m

M8 Extension Cable (10m)

Longer extension for remote sensor placements.

$49
DIN Rail Mounting Kit

LINKS DIN Rail Mounting Kit

Professional DIN rail mount for panel installations.

$9.99
Climalink Replacement Filters

Climalink Replacement Filters (2-Pack)

Keep your ClimaLink readings accurate with fresh filters.

$9.99
LINK Power Supply

LINK Power Supply (1 Amp)

Power supply with international plug adapters.

$29.99
Batch TankLINK pH Sensor

Batch TankLINK pH Sensor

Replacement pH probe for batch tankLINK nutrient monitoring.

$99.99
Batch TankLINK EC Sensor

Batch TankLINK EC Sensor

Replacement EC probe for batch tankLINK nutrient monitoring.

$132.99
Batch TankLINK Level Sensor

Batch TankLINK Level Sensor

Replacement level sensor for tank fill monitoring.

$99.99
Batch TankLINK Temp Sensor

Batch TankLINK Temp Sensor

Replacement temperature probe for batch tankLINK.

$44.99
RJ12 Dimming Adapter

RJ12 Dimming Adapter

Lighting adapter for RJ12 dimming connections.

$9.99
RJ45 Dimming Adapter

RJ45 Dimming Adapter

Lighting adapter for RJ45 dimming connections.

$9.99
Conductivity Sensor Replacement

Conductivity Sensor Replacement

Replacement EC sensor for water quality monitoring.

$199
pH Sensor Replacement

pH Sensor, Light Duty Replacement

Replacement pH sensor for water quality monitoring.

$119
M8 Transition Cable 4-Pack

M8 Transition Cable (4-Pack)

M8 to bare tinned leads for custom sensor wiring.

$24.99
Substrate Sensor Alignment Tool

Substrate Sensor Alignment Tool

Precision placement guide for consistent sensor insertion.

$15
Teros 12 Adapter 4-Pack

Teros 12 Adapter 4-Pack

Connect Teros 12 sensors to your LINKS canopyLINK.

$49.99
Teros12 Sensor Adapter Cable

Teros12 Sensor Adapter Cable (32ft)

Adapter cable for connecting Teros 12 sensors.

$34.99
Terralink Sensor for PIC

Terralink Sensor for PIC (30ft)

Terralink substrate sensor with 30-foot cable for PIC controllers.

$329
COMPATIBILITY

What works together?

Every LINKS device connects through the LINKS 8-Port HUB. Start with the HUB, then add devices by zone or function.

LINKS ecosystem 2026 — system compatibility diagram showing HUB connected to all device categories

Start with the HUB

The LINKS 8-Port HUB is the foundation of every setup.

Add by zone or function

Expand irrigation, lighting, climate, or nutrients independently.

Works with Growlink OS

Every device connects to one platform for centralized control.

EASY SETUP

Set up in minutes. Expand for years.

LINKS is designed for growers who want automation without complicated installation.

1

Connect your HUB

Plug in the LINKS 8-Port HUB and connect to your network.

2

Add your devices

Plug LINKS devices into the HUB — they're discovered automatically.

3

Automate from Growlink OS

Set schedules, triggers, and recipes from anywhere.

Plug-and-play setup Expert support available Secure checkout Free shipping over $500 Made in USA
TRUSTED BY GROWERS

Built for growers who want control without complexity.

“LINKS made it easy to automate irrigation without rebuilding my whole setup. The system builder helped me figure out exactly what I needed.”
— Grower Review
“Being able to start small and expand later made the decision easy. We started with one zone and now run 12.”
— Grower Review
“The plug-and-play setup saved us weeks of installation time compared to our old system.”
— Grower Review
Irrigation, lighting, climate, nutrients, and sensors. Talk to an Expert →

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