The Aprilaire 60 Automatic Digital Humidifier Control Humidistat is a whole house humidifier controller made by Research Products Corporation. It is designed to regulate the humidity levels in your home using an evaporative humidification method. The device has a sleek white color and compact dimensions of 6.75 x 4.5 x 2.5 inches, weighing 9.92 ounces. This controller features a humidistat, which allows you to set the desired humidity level, and it operates on a voltage of 24V. The Aprilaire 60 model is no longer discontinued by the manufacturer and is an ideal choice for those looking to improve the indoor air quality of their home.