Description
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.
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.
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
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
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.
Want the full methodology behind zone-based irrigation scheduling? Download Growlink's Precision Irrigation Playbook V21 (PDF).
