Model 56 Automatic Whole House Humidifier Control Humidistat with Outdoor Temperature Sensor for Whole-House Humidifiers, Low Voltage 24VAC

Automatically adjusts home humidity based on outdoor temperature in Auto Mode Compatible with multiple whole-house humidifier models in Power and Bypass Modes Easy to operate with minimal adjustments required in Auto Mode Convenient indicator light reminds when it's time to replace the water panel Maintains a comfortable humidity level between 40-60%