Growlink LINKS valveLINK 8-Channel Irrigation Valve Controller

The Growlink LINKS valveLINK is an 8-channel 24VAC irrigation valve controller built for growers who want zone-by-zone precision without babysitting a timer bank. Fire valves manually, on a schedule, or let sensor data from your canopyLINK and Terralink substrate sensors trigger irrigation automatically through Growlink Copilot crop steering. Why growers choose valveLINK Eight independent channels: Run up to eight 24VAC irrigation valves off one controller, each with its own tailored watering schedule for different crop zones. Manual, scheduled, or sensor-triggered: Start simple with manual or scheduled control, then layer in sensor-based automation as your setup grows. Growlink Copilot ready: Feed live substrate and canopy data straight into automated crop steering — no separate irrigation timer required. Rugged, durable build: Engineered for demanding commercial and home-grow environments where reliability matters more than anything else. Technical Specifications Outputs 8 sourcing FETs (24VAC valve control) Input Power Max 2.7A @ 24VDC Max Switching Current 1A per port / 2.7A combined Max Switching Voltage 24VDC @ 50% PWM (simulated 24VAC) PWM Spec 1kHz, 50% duty cycle Minimum Cycle Time 1 second Connectivity HUB port (wired) or 2.4GHz Wi-Fi (standalone) Dimensions 4.813"W x 3.5"H x 1.438"D Part of the Growlink LINKS Ecosystem LINKS is Growlink's modular grow-room hardware system: small, purpose-built devices that each do one job well, and click together into a whole-facility control network. canopyLINK handles monitoring — pulling climate, canopy, and substrate sensor data into one place — while valveLINK (this device) handles irrigation, driving your solenoid or ball valves on schedule or by sensor trigger. Every LINKS device can run wirelessly on its own over Wi-Fi, but connect them to the HUB over a wired RJ-45 connection and you unlock whole-room automation, longer signal range, and the ability for the HUB to power and enable additional LINKS hardware across the facility. Pro tip: Running valveLINK wirelessly is fine for a single zone, but wiring it into the HUB alongside canopyLINK gives Growlink Copilot the closed-loop sensor + valve data it needs for genuinely automated crop steering. Not sure what to buy first? Start with a kit. Choose a starter kit based on what you want to automate first — every kit works together and expands over time. MOST POPULAR Irrigation Starter Kit For growers who want automated irrigation with root-zone visibility and climate monitoring. canopyLINK Sensor HUB — £299 valveLINK Controller — £399 Terralink Substrate Sensor x2 — £598 Climalink Climate Sensor — £399 Bundle price: £1,376.95 Add All to Cart — £1,376.95 View bundle details BEST PLACE TO START Monitoring Starter Kit For growers who want real-time climate and root-zone visibility before adding automation. canopyLINK Sensor HUB — £299 Terralink Substrate Sensor — £299 Climalink Climate Sensor — £399 Bundle price: £1,056.00 Add All to Cart — £1,056.00 View bundle details Explore the rest of the LINKS range canopyLINK Sensor HUB — connects up to 8 climate & substrate sensors ClimaLINK Climate Sensor — aspirated temp, RH, VPD & light Terralink Substrate Sensor — VWC, EC & temperature Terralink+ with TrueEC™ — research-grade TDR substrate sensing batch tankLINK — automated nutrient tank monitoring nutriLINK — 8-output precision nutrient delivery HUB 8-Port Communication Controller — wires the whole system together Digital lightLINK — dimming & spectrum control 4 Channel lightLINK — fan speed, dimming, 0–10V Powered by Growlink OS "Run cultivation from a system that learns." Every valveLINK connects into Growlink OS, the cultivation management portal that turns your best irrigation practices into living Blueprints — standardised schedules and automation logic you can roll out across every room. Growlink OS includes Nova, Growlink's built-in AI, which compares performance across rooms, flags deviations from plan, and answers questions about crop performance without you having to dig through spreadsheets. Explore Growlink OS & Nova → New to Growlink OS? The Root plan is free forever for hobby growers — no credit card required — and includes 1 user, 4 sensors, 3-minute data resolution, and 90-day data storage. See all Growlink pricing plans → Free Growlink calculators: Dial in your setup before you buy — try the free Irrigation Schedule Calculator and the free Light & CO&sub2; Calculator. Need a hand? Check the Growlink Knowledge Base for setup guides and troubleshooting, or raise a support ticket directly with Growlink. Want the full methodology behind zone-based irrigation scheduling? Download Growlink's Precision Irrigation Playbook V21 (PDF).