TEMPERATURE AND HUMIDITY METER PSYCHROMETER

The psychrometer has 2 thermometers - dry and wet. The latter shows a lower temperature

than dry, because heat is used to evaporate water. The wetting thermometer shows the lower

temperature, the drier the air. Knowing the temperatures displayed by both thermometers, in a certain table

the corresponding relative humidity is found. When the air temperature is below -5 °C, there is little air

water vapor, so the accuracy of the psychrometer is low; in this case, a psychrometer is used instead

hair hygrometer.

The base is plastic, green.

The liquid is organic.