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Hair hygrometerAn instrument used to monitor relative humidity by measuring the changes in the length of human hair that accompany humidity variations.
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Hair hygrometerA hygrometer that measures relative humidity by means of the variation in length of a strand of human hair. The length variation of a properly treated hair is 2%–2.5% when the humidity changes from 0% [..]
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Hair hygrometerAn instrument designed to monitor relative humidity by measuring the changes in the length of human hair that accompany humidity variations.
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Hair hygrometeran instrument that uses human hair to measure relative humidity; human hair stretches as humidity increases
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Hair hygrometerHygrometer that uses the expansion and contraction of hair to determine atmospheric humidity.
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