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DEFINE HYGROMETER
A hygrometer is an instrument used to measure the relative humidity of air, or the amount of invisible water vapor in a given environment. They range from simple devices like the psychrometer and the hair hygrometer to more complicated pieces like the cooled mirror dew point hygrometer, which uses the temperature of condensation to measure humidity. Modern electronic equipment can also determine humidity by detecting changes in electrical resistance and electrical capacitance. In addition to meteorological use, hygrometers are helpful in a range of applications, including saunas, museums, residential settings, and the HVAC industry.


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