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.
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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.
Six individually controllable normally open dry contact outputs, each rated at 1A up to 24VAC/DC.
Purpose-built for switching low-voltage AC control signals in HVAC units, air handlers, and fan coil units.
Visual indicators show the state of every channel at a glance.
Control commercial dehumidifiers and humidifiers with low-voltage external control via dry contact relays.
Connect to HUB, wire your equipment, and start automating.
Rugged construction for demanding commercial environments.
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.
Facilities needing reliable relay control for HVAC and climate equipment across multiple rooms.
Automated control of fans, vents, heaters, and cooling systems for year-round growing.
Precise on/off control of mixed-voltage equipment in controlled environment agriculture.

The central brain of your automated grow operation. Connect and power up to eight LINK devices.

Real-time canopy-level temperature and humidity monitoring with built-in PAR sensor.

Precision climate monitoring for temperature, humidity, CO2, and VPD.

Take charge of your lighting fixtures with precise control over intensity, spectrum, and timing.
Use the System Builder to configure your setup, or talk to an expert who will spec it for your rooms.