Compatibility: Designed for Humidifier models 400, 500, 600, and 700. Replaces the Automatic Digital Humidifier Control Model 60.
Automatic Adjustment: This control unit contains a temperature sensor that automatically modifies the relative humidity (RH) in response to outdoor temperature variations.
Easy Operation: In automatic mode, only slight adjustments are required to reach a comfortable RH, providing enhanced comfort.
Clear Display: The sizable digital display distinctly indicates the RH% setting. Convenient indicator lights notify you when it's time to change the water panel, when the humidifier is operating, and when maintenance is required