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Spirit Filled Whirling Hygrometer With Folding

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Spirit Filled Whirling Hygrometer With Folding Brannan Heating Ventilation Air-Conditioning and Refrigeration ( HVAC/R )


Whirling hygrometers, also known as sling psychrometers, employ the “wet” and “dry” bulb principle to determine % Relative Humidity. They are designed to be rotated,
by hand, to provide adequate and consistent ventilation of the bulbs. This instrument has a folding handle and is supplied with a chart to calculate %RH and a protective canvas carry case.