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 Hydra's humidification capabilities even further! Features include: Large LED for easy RH% viewing, Reports humidity reading every 30 seconds, HygroSet® adjustable technology, Large capacity water cartridge, 2 internal fans / 2 external fan ports, Audible and visual low water indicator, Handheld remote unit on 54" long wire, Remote controls basic functions and reports temperature and humidity, Toggle switch to turn off/on audible alerts. Dimensions: 11"L x 4 1/4"W x 4 3/4"H