Which instrument is used to measure the amount of moisture in the air?

Which instrument is used to measure the amount of moisture in the air?

• A. Hygrometer
• B. Thermometer
• C. Anemometer
• D. Barometer

Answer: (A)

Measuring moisture in the air means assessing humidity. A hygrometer is specifically designed for this purpose, providing readings of how much water vapor the air contains, typically expressed as relative humidity or dew point. In building automation, humidity data helps control dehumidification or humidification to maintain comfort and prevent moisture-related issues. Other instruments measure different properties: a thermometer measures temperature, an anemometer measures wind speed, and a barometer measures air pressure. That’s why the hygrometer is the instrument used to quantify moisture in the air.

Measuring moisture in the air means assessing humidity. A hygrometer is specifically designed for this purpose, providing readings of how much water vapor the air contains, typically expressed as relative humidity or dew point. In building automation, humidity data helps control dehumidification or humidification to maintain comfort and prevent moisture-related issues.

Other instruments measure different properties: a thermometer measures temperature, an anemometer measures wind speed, and a barometer measures air pressure. That’s why the hygrometer is the instrument used to quantify moisture in the air.