What does a manometer measure?

A manometer is a device specifically designed to measure the pressure of vapors and gases. This is an essential function in both industrial and laboratory settings, where monitoring and controlling gas pressure are critical for safety and operational efficiency. By measuring the pressure directly, manometers can help technicians and engineers ensure that systems such as fire alarm systems, HVAC systems, and gas distribution networks are functioning within safe and optimal pressure ranges.

Other options do not accurately represent the function of a manometer: the measurement of absolute temperature, relative humidity, and dew point falls under different instruments, such as thermometers for temperature, hygrometers for humidity, and psychrometers or dew point meters for the dew point. Understanding the specific applications and limitations of these measuring devices is crucial in various technical fields.