OREGON SCIENTIFIC Hygrometer Thermometer Comfort Black (BA030018-BK) Weather station

Give yourself a healthy home climate with this black Hygrometer Thermometer from the Marathon brand, a useful tool to keep an eye on your indoor climate. It measures both humidity and temperature, and these two factors ultimately determine your comfort and heating costs. Dry air is already comfortable at lower temperatures and feels warmer than humid air. You can easily mount it on the wall and, because it runs on the 2 included AAA batteries, you don't need a power outlet.