Sling Psychrometer
Sling Psychrometers are used to measure the air and wet bulb temperatures to determine the relative humidity and dew point temperature. The sling psychrometer is a portable, plastic, self-contained, hand-held psychrometer containing two bulb thermometers, a cotton wick, and a water reservoir for automatic wick wetting. The bulb thermometers are filled with red spirit. A built-in slide rule reveals relative humidity at a glance. The range of thermometers is 20-120°F. The accuracy of the thermometers is +/- 2°F.
View the video below to learn how to use a sling psychrometer properly…