Large LED for Easy Viewing</br>Reports Humidity Reading Every 30 Seconds</br>HygroSet Adjustable Technology</br>Two Internal Fans</br>Audible and Visual Low Water Indicator</br></br>Product Description</br></br>The Hydra LG Commercial Series Cigar Humidifier is designed to automatically regulate the humidity inside large cabinet humidors up to 16 cubic feet in size. Add up to 3 optional external fans to extend the Hydras humidification capabilities even further!</br><br/>http://www.amazon.com/gp/product/B001R1U6X2