Centralised control for smarter, scalable grow automation. The Growlink HUB is the core communication centre of your Growlink system. Acting as the central brain, it connects and powers up to eight LINK devices, giving you a single, reliable platform to manage your entire grow environment with precision and confidence. Designed for simplicity and scalability, the HUB integrates climate control, lighting, irrigation, and sensor data into one streamlined dashboard through Growlink OS. Whether you are running a single room or expanding into a multi-zone facility, the HUB keeps everything connected, organised, and under control. Key Features Supports up to 8 Channels: Connect and power up to eight Growlink LINK devices from one central unit. Universal Compatibility: Works seamlessly with Growlink hardware and selected third-party devices. Standalone or System Integration: Operate independently or as part of a full Growlink automation setup. Plug and Play Installation: Supplied with mounting hardware and cables for fast, clean installs. Built to Last: Manufactured in the USA for reliability in demanding grow environments. Why Choose the Growlink HUB Without centralised control, growers risk inefficiencies, inconsistent results, and unnecessary labour. The Growlink HUB brings everything together into one intelligent platform, allowing precise automation, improved crop performance, and scalable facility management. Trusted by thousands of professional cultivators worldwide, the HUB reduces human error, improves consistency, and enables real-time monitoring and control across your entire operation. Technical Specifications Input Power: 24V DC, 1A Power Consumption: 3W Operating Conditions: 10–50°C, 0–75% RH (non-condensing) Dimensions: 7.75″ × 7.75″ × 3.75″ Included: AC/DC power supply, 10ft RJ-45 cable, mounting kit Ideal For Automated indoor growing environments Greenhouse climate and irrigation control Professional growers scaling multi-room operations Scale with confidence. The Growlink HUB delivers reliable central automation, real-time data insights, and total system control for modern cultivation environments. 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. The HUB is the wired backbone of that network — canopyLINK, valveLINK, batch tankLINK, and every other LINKS device plug into its 8 ports over RJ-45, unlocking whole-room automation, longer signal range, and the ability to power and enable additional LINKS hardware across the facility. Devices can also run wirelessly on their own over Wi-Fi for smaller or single-zone setups. Explore the rest of the LINKS range canopyLINK Sensor HUB — connects up to 8 climate & substrate sensors valveLINK 8-Channel Irrigation Valve Controller — automated, sensor-triggered irrigation 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 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 HUB 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).
