Sling Psychrometer, to measure relative humidity, Includes two plastic-backed Celsius thermometers, one for dry bulb measurements and the other for wet bulb measurements, Includes an activity guide with relative humidity calculation table, Requires assembly
Temperature Range -40 To 158 F. Accuracy: ¦1 C, Relative Humidity Range: 1 To 99%, Resolution: 0.1% Rh, Accuracy: ¦4% Between 20 To 80%, Size Is 4-1/8 X 4-1/8 X 1 inches, Weight Is 4-1/4 Ounces. Settable High/Low Alarm For All Four Readings. Nist.
Sling Psychrometer, to measure relative humidity, Includes two plastic-backed Celsius thermometers, one for dry bulb measurements and the other for wet bulb measurements, Includes an activity guide with relative humidity calculation table, Requires assembly,pack of 15