Economy Sling Psychrometer Kit, Easy to assemble kit to determine relative humidity., Pack of 15

Details

Here is the corrected text: The 7-piece Sling Psychrometer Kit contains: one dry-bulb thermometer (6.5"L), one wet-bulb thermometer (6.5"L), one wooden handle (5"), one cloth sleeve, one screw, two rubber bands, and one instruction guide. The apparatus is easily assembled by attaching the two thermometers to the end of the handle and placing the moistened cloth sleeve over the wet bulb. Once assembled, the user swings the apparatus for 30 seconds, then records the temperatures on both the wet-bulb and dry-bulb thermometers. Relative humidity and dew point are determined by comparing the temperature difference between the wet- and dry-bulb readings against the included psychrometric charts. The interactive, hands-on Sling Psychrometer promotes students' understanding of meteorology and weather.