Color: White Compatibility: Replacement for AprilAire 60 Digital Humidifier Control, Compatible with AprilAire 400 500 600 700 720 760 760A 768 Series Whole-House Humidifiers. Precise Humidification with Outdoor Temp Sensor: Equipped with an outdoor temperature sensor, Avoids over/under-humidification in any climate. Stable & Efficient: 24VAC power, digital auto control. Low energy use, long service life with minimal wear. Easy Installation: Plug and Play. Package Included: Automatic Digital Humidistat Control x 1, Manual Mode Label x 1, Outdoor Temperature Sensor x 1, Installation Manual x 1.