Honeywell DG115EZIAQ TrueIAQ Digital IAQ Control Setting changes can be made easily with the touch of a button Manages humidification, dehumidification, ventilation and bathroom fans from a central point in your home Simultaneously displays both indoor and outdoor temperature and humidity levels on-screen. Automatically adjusts inside settings based on outdoor conditions Include individual air quality enhancements to your system with TrueIAQ, or integrate them all as part of a total air quality system Intuitive digital backlit display