Humidifier Control compatible with AprilAire 400, 500, 600, 700, 720, 760, and 768 Series Whole Home Dehumidifiers. It features a clear LCD display. After turning on the power, use the knob to conveniently set the desired dryness level. The simple operation makes it fast and easy to use. This control works smartly by activating the equipment when the measured humidity goes above the set point and deactivating it when the humidity drops a specific percentage below, promoting efficient performance and energy savings. It offers straightforward installation for immediate use