The Sensata IEG6-36489-20-V is an enclosed humidity sensing control device designed to regulate HVAC systems. It monitors relative humidity levels and controls dehumidifiers, humidifiers, and temperature controls in commercial and industrial spaces. This model features an adjustable set-point, a digital display to show set point and measured humidity, and a switch to activate fan, heating, and cooling. It is rated for 120VAC, 15A, and has a humidity sensing range of 0.5 to 99.5%. It comes pre-calibrated and accuracy is +/- 2% RH.