Relative humidity is measured with which instrument?

Relative humidity is measured with a hygrometer, which is specifically designed to detect and quantify the amount of moisture in the air. This instrument works by using various methods, such as a wet-bulb/dry-bulb technique or electronic sensors, to provide a reading of humidity levels. Understanding relative humidity is critical because it affects weather patterns and human comfort levels.

The other instruments listed serve different purposes. An anemometer measures wind speed, a barometer is used to measure atmospheric pressure, and a thermometer is designed to measure temperature. Each of these instruments plays a vital role in meteorology and environmental science, but they do not provide information regarding humidity levels.