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<h2>Hygrometer with hair dial diameter 10.5 cm Chromium:</h2>
<p>The hygrometer measures the humidity level of the room in which it is located. Its secret: a natural hair stretched between the axis of the needle and a pulley. According to the humidity or the dryness of the air the hair shortens or lengthens only a few tenths of millimeters, making the needle move on the dial.</p>
<h2>Characteristics of the 10.5cm Chrome Hair Hygrometer :</h2>
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