{"product_id":"mountain-air-environmental-controller","title":"Mountain Air Environmental Controller – EC Fan Thermostat","description":"\u003ch2\u003eLet Temperature Set Your Mountain Air Fan's Speed\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eMountain Air Environmental Controller\u003c\/strong\u003e is a three-mode \u003cstrong\u003ethermostatic fan controller\u003c\/strong\u003e for Mountain Air \u003cstrong\u003eEC Whisper\u003c\/strong\u003e inline fans. It plugs into the fan's control port in place of the dial speed controller supplied with the fan, and a \u003cstrong\u003eremote temperature sensor on a 4m lead\u003c\/strong\u003e reads the grow room so the controller can run the fan to a target between \u003cstrong\u003e18°C and 32°C\u003c\/strong\u003e. Use it as a simple manual speed dial, or let it slow the fan, or switch it off, when the room cools below your set point.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree modes\u003c\/strong\u003e – manual fan speed, cool-temp speed (the fan slows when the room drops below target) and cool-temp shutdown (the fan stops).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide speed range\u003c\/strong\u003e – set anywhere from \u003cstrong\u003e20% to 100%\u003c\/strong\u003e of the fan's maximum speed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote sensing\u003c\/strong\u003e – the temperature probe sits on a \u003cstrong\u003e4m lead\u003c\/strong\u003e, so it can read the air among the plants rather than beside the fan.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug and play\u003c\/strong\u003e – connector lead and jack plug included; it swaps straight in for the standard dial controller.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne controller, several fans\u003c\/strong\u003e – Mountain Air's 3.5mm splitter and jumper cables (sold separately) link more than one EC Whisper fan to a single controller.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTemperature Swings Between Lights-On and Lights-Off\u003c\/h3\u003e\u003cp\u003eA fan left at one speed is a compromise: fast enough for the heat of the day or lights-on period, it over-cools the room at night and drags in cold air, while a speed set for the cool hours lets heat and \u003cstrong\u003ehumidity\u003c\/strong\u003e build when the lights come on. Thermostatic control keeps \u003cstrong\u003eairflow\u003c\/strong\u003e matched to the conditions, so the grow room climate stays steadier, the fan runs slower and quieter for much of the time, and plants avoid the stress of big temperature swings.\u003c\/p\u003e\u003ch3\u003eHow to Use\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit the fan first:\u003c\/strong\u003e install the EC Whisper fan with its ducting and filter as normal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnect:\u003c\/strong\u003e unplug the supplied dial controller and plug the Environmental Controller into the fan's control port with its fitted lead and jack plug.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlace the probe:\u003c\/strong\u003e position the temperature sensor where you want the temperature held, normally among the plant canopy, out of direct light.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChoose a mode:\u003c\/strong\u003e Fan Speed for manual control, Cool-Temp Speed to slow the fan below the set temperature, or Cool-Temp Shutdown to stop it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet the dials:\u003c\/strong\u003e set the target temperature and the speed, then fine-tune over a day or two as the room settles.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv class=\"hcs-specs\"\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Mountain Air\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Three-mode thermostatic controller for Mountain Air EC Whisper fans\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModes:\u003c\/strong\u003e Fan Speed (manual), Cool-Temp Speed, Cool-Temp Shutdown\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed range:\u003c\/strong\u003e 20% – 100% of maximum fan speed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature range:\u003c\/strong\u003e 18°C – 32°C (65°F – 90°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature sensor:\u003c\/strong\u003e Remote probe on a 4m lead\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection to fan:\u003c\/strong\u003e Jack plug into the fan's control port (connector lead included)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible fans:\u003c\/strong\u003e Mountain Air EC Whisper 150mm, 200mm, 250mm and 315mm (current models)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple fans:\u003c\/strong\u003e Via Mountain Air 3.5mm splitter and male jumper cables (sold separately)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cdiv class=\"hcs-faq\"\u003e\n\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eWhy use this instead of the dial supplied with the fan?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eThe supplied dial only sets a fixed speed. This controller reads the room temperature and adjusts the fan to hold your target, or switches it off when the room is cool enough, so you are not resetting the dial between day and night.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eWill it work with other brands of EC fan?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eNo. It is made for Mountain Air EC Whisper fans and is not suitable for Rhino, Phresh or Systemair EC fans. Mountain Air's older (pre-2024) Whisper fans are not compatible either.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eCan one controller run more than one fan?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eYes. Mountain Air's 3.5mm splitter cables plug into each fan and male jumper cables link them, so one controller can daisy-chain several EC Whisper fans.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eWhere should the temperature probe go?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eWherever you want the temperature held, normally among the plant canopy and shaded from direct light. The 4m lead gives plenty of reach from the fan.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\u003ch3\u003eWorks Well With\u003c\/h3\u003e\u003cdiv class=\"hcs-related\" style=\"display:flex;flex-wrap:wrap;gap:10px;margin:12px 0 0;\"\u003e\u003ca href=\"\/products\/mountain-air-ec-whisper-fan-315mm\" style=\"flex:1 1 240px;display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid #e6e6e6;border-radius:8px;text-decoration:none;color:inherit;background:#fff;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/mountain-air-ec-whisper-fan-315mm-default-title-1.jpg?v=1790229769\u0026amp;width=160\" alt=\"Mountain Air EC Whisper Fan\" width=\"64\" height=\"64\" loading=\"lazy\" style=\"width:64px;height:64px;object-fit:contain;flex:none;\"\u003e\u003cspan style=\"font-size:14px;line-height:1.4;\"\u003e\u003cstrong style=\"display:block;\"\u003eMountain Air EC Whisper Fan\u003c\/strong\u003e\u003cspan style=\"color:#008d37;\"\u003eThe EC Whisper fan it runs, in 150, 250 and 315mm\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e","brand":"Mountain Air","offers":[{"title":"Default Title","offer_id":53930886824202,"sku":"ENV-MOUN-004-01","price":53.9,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/mountain-air-environmental-controller-default-title-1.jpg?v=1792278754","url":"https:\/\/hydrocropshop.co.uk\/products\/mountain-air-environmental-controller","provider":"Hydro Crop Shop","version":"1.0","type":"link"}