Hygrometer Basics Hygrometers measure the moisture content of the air to determine the relative humidity. Accurate humidity readings can help you protect fine furniture, musical instruments, heirloom plants and the health of your family. Too much humidity can promote the growth of allergy-provoking mold; too little can be harmful to skin and breathing passages and either extreme can be harmful to wood and electronics.
Using a hygrometer in combination with a humidifier or de-humidifier can help prevent these problems and maximize your comfort. Relative humidity ranging from 45% to 70% is generally considered to be comfortable. In warm weather, the air holds more moisture, making the air feel hotter than it actually is. Conversely, the air holds less moisture in the winter, so introducing a little humidity indoors may improve your comfort level during colder months.
Our mechanical hygrometers take advantage of a time-tested method in which a synthetic fiber expands as it absorbs moisture from the air. This expansion, in turn, moves the metal coil to which it is bonded. As the coil twists, the pointer moves up the scale. As the fiber dries, the coil contracts and the pointer reverses direction.
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Burlington, Vermont 05401 USA 