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Sling Psychrometer

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SKU: 89288
This Sling Psychrometer meets the GLOBE program protocols for relative humidity. Safe and easy to use, this sling psychrometer allows for easy conversion of wet and dry bulb readings to relative humidity - eliminating the need for conversion tables!
SKU: 88982
This Sling Psychrometer comes in a self-contained pocket case and slide rule sling psychrometer. High-impact plastic. White on black scale markings. Red liquid (alcohol) filled.