Product review (5 stars): A Must Have House Essential!
Everyone should have this in their home.  It is so great, especially when the seasons change, to monitor your home's humidity.  Too dry may feel uncomfortable and leave you more susceptible to getting sick.  I use this to determine what setting I should put my room humidifier on when I am feeling congested, and the having the right setting has been key to relieving my symptoms properly!  It has made such a difference :)