This Humidity Controller is the ultimate product for keeping a constant relative humidity, wherever you need it…a closet, curing chamber or other area where humidity needs to be controlled. Stabilizes humidity to your set level by controlling both a humidifier and dehumidifier (or fan) toggling ON whichever is needed at the moment to acquire the desired humidity. Comes with a confident 3-year manufacturer’s warranty so it goes without saying this is a quality built product with reliability and service going from The SausageMaker all the way to the producer. Ranges from 30-90% Relative Humidity with a 7% differential.Dimensions: 8" L x 6" W x 3 1/2" D