The WhisperKOOL Extreme 5000ti centers on variable speed fans for ultimate control of the most advanced and powerful self-contained cooling system. This unit includes WhisperKOOL’s most advanced controller to keep all of the cellar vitals in check while operating at a quiet 51 decibels. This series features an advanced liquid temperature controller with a remote LED display (which can be placed up to 300 line feet from the unit) and electronic thermostat. Maintain 55°F in cellars up to 1250 cu. ft. in size.