A 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%–100%. Circular dial type hygrometer with scale 0 to 100×1% RH (Relative Humidity). In metal case
PHY-MESS-64 HARR OR HAIR HYGROMETER
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Harr Or Hair Hygrometer is an SSI India product in the Meteorology Earth Science & Solar System category. Key specifications include SKU: SSI-PHY-MESS-64. The length variation of a properly treated hair is 2%–2.5% when the humidity changes from 0%–100%. Circular dial type hygrometer with scale 0 to 100×1% RH (Relative Humidity). A hygrometer that measures relative humidity by means of the variation in length of a strand of human hair.