{"product_id":"rj11-stereo-adaptor-ec-fan-controller-australia","title":"RJ11 \u0026 Stereo Adaptor | Universal EC Fan Controller Compatibility Interface for Grow Room Ventilation","description":"\u003ch2\u003eOne Adaptor. Full EC Fan Compatibility Across RJ11 and Stereo Systems.\u003c\/h2\u003e\u003cp\u003eThe RJ11 and Stereo Adaptor is a universal signal interface engineered by Global Air Supplies to bridge the compatibility gap between GAS climate controllers and EC inline fans, regardless of whether your fan uses an RJ11 or stereo jack input. Where the individual RJ11 and stereo adaptors each serve a single input type, this universal adaptor handles both, making it the most flexible option for growers who are unsure of their fan's input format, running mixed systems, or building a setup that may evolve over time.\u003c\/p\u003e\u003cp\u003eWithout the correct signal interface in place, your GAS controller cannot communicate with your EC fan. Fan speed modulation, temperature response, and environmental automation are all unavailable until the signal chain is complete. This adaptor closes that gap cleanly, with plug and play installation and stable signal transmission across the full operating range of your fan.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Signal Compatibility.\u003c\/strong\u003e Supports both RJ11 and stereo jack EC fan inputs from a single adaptor, covering the two most common EC fan connection formats.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal EC Fan Integration.\u003c\/strong\u003e Works across multiple fan input types, making it the most flexible adaptor option in the GAS accessory range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad GAS Controller Compatibility.\u003c\/strong\u003e Works with the full range of compatible GAS controllers including the Enviro, Enviro V2, EC5, Enviro 4, and EC2.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug and Play Installation.\u003c\/strong\u003e Simple inline connection. No wiring, no tools, no configuration required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStable Signal Conversion.\u003c\/strong\u003e Accurate, consistent fan speed response across the full operating range for smooth fan ramping and precise environmental control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Design.\u003c\/strong\u003e Minimal footprint within your system. Sits cleanly between controller and fan without adding bulk.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEssential System Component.\u003c\/strong\u003e Enables full controller-to-fan communication in setups where input format compatibility would otherwise prevent control.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow It Works\u003c\/h3\u003e\u003cp\u003eGAS controllers output a control signal to regulate EC fan speed. EC fans use either an RJ11 or stereo jack input to receive that signal. The RJ11 and Stereo Adaptor converts the GAS controller output to whichever format your fan requires, maintaining signal integrity and stability across the conversion. The fan receives accurate speed commands from the controller and responds correctly to temperature changes, speed adjustments, and environmental triggers. The result is a fully integrated ventilation system with no compatibility limitations between your controller and fan.\u003c\/p\u003e\u003ch3\u003eSystem Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction.\u003c\/strong\u003e RJ11 and stereo jack signal conversion, universal EC fan compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Controllers.\u003c\/strong\u003e GAS Enviro, GAS Enviro V2, GAS EC5, GAS Enviro 4, GAS EC2.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Fans.\u003c\/strong\u003e EC fans with RJ11 or stereo jack inputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Type.\u003c\/strong\u003e Dual format: RJ11 and stereo jack output.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation.\u003c\/strong\u003e Plug and play, inline connection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Stability.\u003c\/strong\u003e Accurate fan modulation across full speed range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer.\u003c\/strong\u003e GAS (Global Air Supplies).\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal EC Fan Controller Adaptor.\u003c\/strong\u003e The single adaptor solution for growers connecting GAS controllers to EC fans with either RJ11 or stereo jack inputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydroponic Ventilation Control Interface.\u003c\/strong\u003e Completes the control chain between GAS environmental controllers and EC inline fans in automated grow room systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMixed System Compatibility.\u003c\/strong\u003e Ideal for setups running multiple EC fans with different input formats, or where the fan input type is not confirmed before purchase.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrow Room EC Fan Wiring Solution.\u003c\/strong\u003e Eliminates compatibility issues between controller outputs and EC fan inputs without custom wiring or modification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFan Controller Signal Conversion.\u003c\/strong\u003e Suitable for any GAS controller and EC fan combination where direct connection is not possible without signal interface.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat Sets It Apart\u003c\/h3\u003e\u003cp\u003eThe RJ11 and Stereo Adaptor is the most versatile option in the GAS adaptor range. If you know your fan uses an RJ11 input, the dedicated GAS to RJ11 Adaptor is the precise solution. If you know it uses a stereo jack, the GAS to Stereo Single Adapter is the direct match. But if you are working across multiple fans, building a system that may change, or simply want one adaptor that covers both formats without needing to confirm input type first, this universal adaptor removes the guesswork entirely. It is also the safest choice when purchasing an EC fan and controller together for the first time.\u003c\/p\u003e\u003ch3\u003eComplete Your GAS Ventilation Control System\u003c\/h3\u003e\u003cp\u003eThis adaptor is one component in a complete EC fan control system. Here is the full GAS ecosystem it integrates with:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGAS Enviro Fan Controller.\u003c\/strong\u003e Entry-level temperature-based fan speed control with simple dial interface. View the \u003ca href=\"\/products\/gas-enviro-fan-controller-australia\"\u003eGAS Enviro Fan Controller\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGAS Enviro V2 Fan Controller.\u003c\/strong\u003e Full environmental automation with humidity control, programmable sockets, fan balancing, and LCD display. View the \u003ca href=\"\/products\/gas-enviro-v2-fan-controller-australia\"\u003eGAS Enviro V2 Fan Controller\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGAS EC5 Fan Controller.\u003c\/strong\u003e Purpose-built for EC fans with Reactive Temperature Technology, integrated fan balancing, and negative pressure control. No power pack required. View the \u003ca href=\"\/products\/gas-ec5-fan-controller-australia\"\u003eGAS EC5 Fan Controller\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGAS to RJ11 Adaptor.\u003c\/strong\u003e The dedicated interface for EC fans with RJ11 inputs specifically. View the \u003ca href=\"\/products\/gas-to-rj11-adaptor-ec-fan-controller-australia\"\u003eGAS to RJ11 Adaptor\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGAS to Stereo Single Adapter.\u003c\/strong\u003e The dedicated interface for EC fans with stereo jack inputs specifically. View the \u003ca href=\"\/products\/gas-to-stereo-adapter-ec-fan-controller-australia\"\u003eGAS to Stereo Single Adapter\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction.\u003c\/strong\u003e RJ11 and stereo jack signal conversion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput.\u003c\/strong\u003e GAS controller output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput.\u003c\/strong\u003e RJ11 and stereo jack (universal EC fan compatibility)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Controllers.\u003c\/strong\u003e GAS Enviro, Enviro V2, EC5, Enviro 4, EC2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Fans.\u003c\/strong\u003e EC fans with RJ11 or stereo jack inputs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation.\u003c\/strong\u003e Plug and play, inline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer.\u003c\/strong\u003e GAS (Global Air Supplies)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat fans is RJ11 \u0026amp; Stereo Adaptor compatible with?\u003c\/h3\u003e\n\u003cp\u003eRJ11 \u0026amp; Stereo Adaptor is designed to work with compatible inline fans. EC controllers require EC-motor fans for full variable-speed control — they are not compatible with standard AC-motor fans. AC fan controllers work with standard single-phase AC fans. Check the compatibility list for your specific fan model before purchasing RJ11 \u0026amp; Stereo Adaptor if you are retrofitting to an existing setup.\u003c\/p\u003e\n\u003ch3\u003eHow does RJ11 \u0026amp; Stereo Adaptor automate my grow room climate?\u003c\/h3\u003e\n\u003cp\u003eRJ11 \u0026amp; Stereo Adaptor monitors temperature and\/or humidity via its onboard or external probe and automatically adjusts fan speed to maintain your target setpoints. When temperature rises above your target, fan speed increases to extract warm air. When temperature drops, fan speed reduces to conserve heat. This removes the need for manual fan adjustments and keeps your grow room dialled in 24\/7.\u003c\/p\u003e\n\u003ch3\u003eCan I use RJ11 \u0026amp; Stereo Adaptor with both my intake and exhaust fans?\u003c\/h3\u003e\n\u003cp\u003eMost fan controllers including RJ11 \u0026amp; Stereo Adaptor are designed to control your primary exhaust fan. Some models include dual-channel control for both intake and exhaust. Check the number of output channels and maximum load rating before connecting multiple fans — never exceed the controller's maximum amperage rating.\u003c\/p\u003e\n\u003ch3\u003eDoes RJ11 \u0026amp; Stereo Adaptor ship fast within Australia?\u003c\/h3\u003e\n\u003cp\u003eYes — RJ11 \u0026amp; Stereo Adaptor ships from our Australian warehouse with fast tracked delivery Australia-wide. Most east coast orders arrive within 2–5 business days. WA, NT, and TAS orders typically arrive within 5–12 business days.\u003c\/p\u003e","brand":"GAS","offers":[{"title":"Default Title","offer_id":43210020585535,"sku":null,"price":29.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/6898\/8479\/files\/GECASD-GAS-to-Stereo-Double-Adapter_1000x1000_Grey-copy.png?v=1777780633","url":"https:\/\/apexgrow.com.au\/products\/rj11-stereo-adaptor-ec-fan-controller-australia","provider":"Apex Grow","version":"1.0","type":"link"}