In humidity sensing, besides relative humidity, what other measurements may be provided?

• A. Dew point or absolute humidity.
• B. Temperature.
• C. Dew point.
• D. Absolute humidity.

Answer: (C)

Dew point provides a direct readout of how much moisture is actually present in the air, making it a natural companion to relative humidity. It is defined as the temperature to which air must be cooled to reach saturation and begin condensation. Because dew point depends on the amount of water vapor in the air rather than the current air temperature, it communicates moisture content in a way that relative humidity alone cannot. This helps assess condensation risk and comfort more clearly, since two environments can have the same relative humidity but different dew points and thus different moisture contents. Temperature is often shown alongside, but it isn’t a humidity measurement itself, while absolute humidity is another way to express moisture content; dew point is the most common additional metric provided with humidity sensing.