The AprilAire 60 Automatic Digital Whole-House Humidifier Control Humidistat is a sleek and efficient solution for maintaining optimal indoor air quality in your home. This white, plastic humidistat operates on an evaporative humidification method, providing reliable moisture control for spaces larger than 215 sq ft. With smart home compatibility and proprietary smart home protocol, this model offers convenient and efficient operation. The timerless design allows for continuous operation, ensuring a comfortable environment throughout your home. New Open box, Please see pictures for additional details.