{"product_id":"rhino-ec-fan-speed-controllers","title":"Rhino 1EC Fan Speed Controller","description":"\u003csection class=\"gh-product-listing\"\u003e\n\u003ch2\u003eRhino 1EC Fan Speed Controller — Thermostat-Based Extraction Fan Control at Entry-Level Pricing\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Growers wanting automatic temperature control over their extraction fan without paying for digital complexity or extra features\u003c\/p\u003e\n\u003cdiv class=\"gh-our-thoughts\" role=\"note\" aria-label=\"Our thoughts\"\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eOur thoughts\u003c\/strong\u003e\u003cbr\u003eThis is a proper entry-level EC fan controller that does exactly what it should—keeps your grow room at the temperature you set, automatically adjusts your extraction fan, and doesn't rinse your budget doing it. Simple analogue dials, rock-solid performance, no faffing about with software. One we recommend a lot for growers stepping up from manual dimmers.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003eThe Rhino 1EC is a \u003cstrong\u003ethermostat-based EC fan speed controller\u003c\/strong\u003e designed to give you automatic climate control without the complexity. It sits between basic manual dimmers and advanced digital controllers, offering temperature-sensing automation through three simple analogue dials. Connect it directly to your Rhino Ultra EC extraction fan, set your target temperature and fan speed limits, and it handles the rest—adjusting airflow automatically to keep your grow room stable, day in, day out.\u003c\/p\u003e\n\u003ch3\u003eHow it compares\u003c\/h3\u003e\n\u003cp\u003eThis sits firmly in the \u003cstrong\u003eentry-level EC controller\u003c\/strong\u003e category.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAutomatic temperature-based control — above basic manual dimmers, below digital smart controllers\u003c\/li\u003e\n\u003cli\u003eSingle-fan operation — not built for dual-fan negative pressure setups (that's the Rhino 2EC)\u003c\/li\u003e\n\u003cli\u003eAnalogue dial interface — simpler than digital, no learning curve\u003c\/li\u003e\n\u003cli\u003eNo external power required — plugs straight into compatible Rhino fans\u003c\/li\u003e\n\u003cli\u003eSignificantly cheaper than digital EC controllers or multi-purpose AC\/EC units\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn short: you get thermostat-level automation at a price that makes sense for a first proper fan controller.\u003c\/p\u003e\n\u003ch3\u003eUsage guidance\u003c\/h3\u003e\n\u003cp\u003eThe Rhino 1EC works through three straightforward dials, each controlling a different aspect of your extraction setup:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature dial\u003c\/strong\u003e\u003cbr\u003eSet your target grow room temperature between 20°C and 30°C. The built-in thermal probe monitors the actual temperature and tells the controller what to do.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum speed dial\u003c\/strong\u003e\u003cbr\u003eSet the highest speed your extraction fan can run at—anywhere from 50% to 100% power. This is useful for reducing noise during cooler months or when you're not running a full heat load. Lower maximum speeds also cut running costs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMinimum speed dial\u003c\/strong\u003e\u003cbr\u003eSet the lowest speed the fan will run at—0% to 100%. This maintains basic air exchange and CO₂ replenishment even when the room is cool. Prevents the fan from cutting out completely.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow it works in practice\u003c\/strong\u003e\u003cbr\u003eOnce dialled in, the controller runs on autopilot. Temperature rises above your set point? The fan speeds up automatically. Temperature drops? The fan slows down. You don't have to be there tweaking it manually—it just keeps your environment stable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBest suited to single-fan extraction setups\u003c\/strong\u003e where you want automatic temperature control without managing negative pressure across multiple fans.\u003c\/p\u003e\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eController type: \u003cstrong\u003eAnalogue thermostat-based EC fan speed controller\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eTemperature range: \u003cstrong\u003e20°C to 30°C (user-selectable)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eMaximum fan speed setting: \u003cstrong\u003e50% to 100%\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eMinimum fan speed setting: \u003cstrong\u003e0% to 100%\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eFan compatibility: \u003cstrong\u003eRhino Ultra EC fans (direct connection, no external power supply required)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl interface: \u003cstrong\u003eThree analogue adjustment dials\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eTemperature probe: \u003cstrong\u003eIncluded, user-positionable\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOperation mode: \u003cstrong\u003eFully automatic once set\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho this is for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFirst-time buyers stepping up from manual fan dimmers to automatic control\u003c\/li\u003e\n\u003cli\u003eGrowers with a single extraction fan who want temperature-based automation\u003c\/li\u003e\n\u003cli\u003eBudget-conscious growers who don't need digital precision or multi-fan capability\u003c\/li\u003e\n\u003cli\u003eHands-on growers who like to experiment with temperature and airflow settings\u003c\/li\u003e\n\u003cli\u003eBusy growers who want to set it once and not think about fan adjustment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eParticularly well suited to \u003cstrong\u003esetups where simplicity and reliability matter more than granular digital control\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eOur take\u003c\/h3\u003e\n\u003cp\u003eThis is a solid entry-level EC fan controller that takes the guesswork out of climate control. You set three dials, the thermal probe does the work, and your grow room temperature stays stable. No complicated menus, no software updates, no external power cable—just honest automation.\u003c\/p\u003e\n\u003cp\u003eIf you're ready to move beyond manual control and don't want to pay for digital features you won't use, worth picking up while clearance stock lasts. Does exactly what it should, day in, day out.\u003c\/p\u003e\n\u003c\/section\u003e","brand":"RHINO","offers":[{"title":"Default Title","offer_id":47916377931946,"sku":"90623","price":89.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0053\/5540\/5400\/files\/90623-Rhino1ECFanController_86da2226-3e14-40fe-857c-3e49008ab28a.jpg?v=1769192821","url":"https:\/\/growershouse.co.uk\/products\/rhino-ec-fan-speed-controllers","provider":"Growers House ","version":"1.0","type":"link"}