{"product_id":"topgreener-humidity-sensor-fan-control-switch-auto-ventilation","title":"TOPGREENER Humidity Sensor Fan Control Switch - Auto Ventilation","description":"\u003cp\u003eIn this review of the TOPGREENER Humidity Sensor and Fan Control Switch the bottom line is simple: it is a practical, no-nonsense solution for automatically removing excess moisture from small rooms. The switch is aimed at homeowners and renters who want a simple way to run a ventilation fan only when humidity climbs, and the single biggest reason to buy is the automatic humidity-triggered operation that removes guesswork and helps prevent mold and mildew in bathrooms, laundry rooms or basements.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic humidity detection:\u003c\/strong\u003e The switch senses excess humidity and turns the ventilation fan on so the room is ventilated without manual intervention.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable humidity levels:\u003c\/strong\u003e Three settings let the user choose low, medium or high trigger points to suit the specific ventilation needs of the space.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in time delay:\u003c\/strong\u003e A 20 minute delay keeps the fan running long enough after humidity drops to clear residual moisture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManual bypass:\u003c\/strong\u003e The humidity sensor can be bypassed by manually switching the fan off when it is already on, offering straightforward control when needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall plate included:\u003c\/strong\u003e Each pack includes one decorator wall plate for a finished install without hunting for parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUL-Listed and warranted:\u003c\/strong\u003e The switch is UL-Listed and comes with a 1-year warranty for basic peace of mind.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe TOPGREENER humidity switch is best for homeowners, landlords and DIY-minded renters who want to automate a single exhaust fan on a 120VAC circuit and have a neutral wire available in the wall box. It is well suited to bathrooms, small laundry rooms and basements that experience intermittent high humidity.\u003c\/p\u003e\n\u003cp\u003eIt is not the best choice for multi-location or 3-way switching, high load fans above 3A, or installations where a neutral wire is not present. Buyers who need advanced programming, precise calibration beyond basic low\/medium\/high settings, or commercial-grade sensing should look elsewhere.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAutomatically activates a ventilation fan when humidity is high, reducing manual checks.\u003c\/li\u003e\n\u003cli\u003eEasy to install for users with a neutral wire and basic wiring experience; many reviewers find installation straightforward.\u003c\/li\u003e\n\u003cli\u003eThree humidity set points and a 20 minute delay provide simple customization to match room needs.\u003c\/li\u003e\n\u003cli\u003eIncludes a decorator wall plate and comes in a 2-pack for multiple rooms or spares.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome users report inconsistent sensing or limited adjustment ability, so performance can vary by environment.\u003c\/li\u003e\n\u003cli\u003eSingle-pole only and limited to 3A maximum fan load, restricting use with larger fans.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eTOPGREENER\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eHumidity Sensor and Fan Control Switch TDHS5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e120VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum fan load\u003c\/td\u003e\n\u003ctd\u003e3A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity range\u003c\/td\u003e\n\u003ctd\u003e45% - 80%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTime delay\u003c\/td\u003e\n\u003ctd\u003e20 minutes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty and safety\u003c\/td\u003e\n\u003ctd\u003e1-year warranty, UL-Listed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe TOPGREENER humidity sensor switch is a practical, affordable option for automating small ventilation fans where a neutral wire exists; it offers useful features like three trigger levels and a 20 minute delay and represents good value for routine residential moisture control. Those who need high precision sensing or higher load capacity should consider higher-end or dedicated ventilation controllers instead.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this switch require a neutral wire?\u003c\/strong\u003e\u003cbr\u003eYes, the device requires a neutral wire for installation and is intended for single-pole use only.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat fan size can it control?\u003c\/strong\u003e\u003cbr\u003eThe switch is rated for a maximum fan load of 3A on a 120VAC circuit, so it is suitable for most small bathroom and laundry fans but not high-power motors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the humidity threshold be adjusted?\u003c\/strong\u003e\u003cbr\u003eYes, there are three humidity settings (low, medium, high) to choose the trigger point between about 45% and 80% relative humidity.\u003c\/p\u003e","brand":"TOPGREENER","offers":[{"title":"Default Title","offer_id":48746972152027,"sku":"B07QPQHVXC","price":47.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71G49fBhvqL._SL1500.jpg?v=1778961373","url":"https:\/\/gearmusthave.com\/products\/topgreener-humidity-sensor-fan-control-switch-auto-ventilation","provider":"GearMustHave","version":"1.0","type":"link"}