Climate Control

relayLINK

The relayLINK connects to a Growlink HUB and provides six individually controllable dry contacts for on/off device control. Intended for HVAC relays, dehumidifier control, humidifier control, and miscellaneous dry contact on/off control.

$299.00
SKU: GL-LINK-RELAY

Free shipping on orders over $500 USD

Made in USA Plug & Play Growlink OS
Why the relayLINK

Six channels of reliable dry contact control.

Without proper relay control, mixed-voltage equipment can be difficult to integrate and automate. The relayLINK gives you six independent dry contact channels to control HVAC, fans, pumps, and more through Growlink OS.

6 Dry Contact Relays

Six individually controllable normally open dry contact outputs, each rated at 1A up to 24VAC/DC.

HVAC Control

Purpose-built for switching low-voltage AC control signals in HVAC units, air handlers, and fan coil units.

LED Status

Visual indicators show the state of every channel at a glance.

Dehumidifier & Humidifier Control

Control commercial dehumidifiers and humidifiers with low-voltage external control via dry contact relays.

Plug-and-Play

Connect to HUB, wire your equipment, and start automating.

Made in USA

Rugged construction for demanding commercial environments.

The Growlink LINKS System

One HUB. Complete room control.

The relayLINK connects to the LINKS HUB as part of your complete LINKS ecosystem — integrating climate, lighting, irrigation, substrate, and nutrient devices into a single automated system managed through Growlink OS.

Growlink LINKS system diagram showing HUB at the center connecting all LINK devices
Specifications

Technical details.

Input Power 24VDC – 1.5A Max.
Max Relay Current 1A Per Relay
Max Relay Voltage 24VAC/DC
Minimum Cycle Time 1 Second
Interface HUB Connection Port
Terminal Wire Gauge 26 – 16 AWG
Tightening Torque 0.3 – 0.4 Nm
Dimensions 4.813″W × 3.5″H × 1.438″D (122mm × 90mm × 36.5mm)
relayLINK flat view
Built for

Who uses the relayLINK.

Commercial Cannabis

Facilities needing reliable relay control for HVAC and climate equipment across multiple rooms.

Greenhouse Operations

Automated control of fans, vents, heaters, and cooling systems for year-round growing.

Indoor Agriculture

Precise on/off control of mixed-voltage equipment in controlled environment agriculture.

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.

relayLINK
$299.00
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