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Ginsberg Dew Point Apparatus utilizes an aspirator bulb to pump air through a liquid, such as alcohol, which lowers the temperature until the dew point is reached. The dew point can be seen as a film of moisture that builds up on the outside of the nickel-plated cup that is used to hold the alcohol. The cooling caused by the evaporation of the alcohol is what produces the moisture.
Price : 59.99 USD
Sale Price : 38.87 USD
More info : Ginsberg Dew Point Apparatus,3.5″x 3.5″Base x 13",Each,7-330