Product review (4 stars): Helps me control the humidity in winter
I use room humidifiers to help prevent nosebleeds, preserve wood furniture and keep my  house plants happy. I have 2 of these, one for the bedroom and one for the living room. Helps me monitor interior temp and humidity and decide how much to run the humidifiers. They seem quite accurate. 2 placed side by side agree exactly, and temp is always within 1 or 2 degrees of the level the thermostat is set for. Great price, too.