Question

What is the name of the instrument that measures and records the relative humidity of the air?

Answer 1

I think its the psychrometer ....

Answer 2

Answer: hygrometer

A hygrometer is an instrument used to measure relative humidity. Humidity is the measure of the amount of moisture in the air. A psychrometer is an example of a hygrometer. A psychrometer uses two thermometers to measure relative humidity; one measures the dry-bulb temperature and the other measures the wet-bulb temperature.

Explanation: