Question

How is the humidity measure

Answer 1

A device to measure relative humidity is called a hygrometer. The simplest hygrometer - a sling psychrometer - consists of two thermometers mounted together with a handle attached on a chain. One thermometer is ordinary. The other has a cloth wick over its bulb and is called a wet-bulb thermometer.

Answer 2

$<i><h>Here is your answer:-</h></i>$

=》The instrument that measure humidity is Psychrometer.

=》It is controlled by satillite.

Hope you understand..☆☆