quadLINK – 4-Channel 120VAC Relay Switch Module
quadLINK – 4-Channel 120VAC Relay Switch Module – Automate CO2 Valves, Pumps, Lights, and Fans with Sensor Triggers, Timers, or Schedules – Manual or Automated Control Through Growlink OS CONTROL FOUR DEVICES INDEPENDENTLY: Connect up to four 120V AC devices—like pumps, fans, lights, irrigation systems, or CO2 valves—and manage each one through Growlink OS. THREE AUTOMATION MODES: Run devices manually, on a schedule, or through sensor-triggered logic using data from your Growlink system. *Requires Growlink HUB (sold separately) FREES UP HUB PORTS: quadLINK lets you expand your system efficiently by running four devices through a single HUB port. Ideal for...