The indoor humidity should be set to match the outdoor temperature to prevent water from running down the sides of your windows
When the relative humidity reverses the Aprilaire 4655 manual digital control humidistat will close the control switch. The Aprilaire 4655 manual digital control humidistat can either be wall mounted or mounted on the return Plenum
This even water distribution ensures maximum evaporation from your humidifier

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 4.6 inch
Height : 2.7 inch
Length : 6.1 inch

Item Weight: 1 pounds (View shipping rates and policies)
Shipping Weight: 8 ounce (View shipping rates and policies)

ASIN : B002VNEZX2