Jeff Driscoll wrote:
no it doesn't give the mass of water as vapor because it only works for measuring the mass of water of vapor in AIR. NOT in a mixture of vapor and microscopic water DROPLETS
All air has microscopic water droplets in it. Sometimes they are macroscopic, for example, when it rains, or when someone takes a shower, or in any kitchen. Are you suggesting that this meter does not work when it rains? Or it does not work in a bathroom?
(If you think rain does not come indoors, you should visit a traditional Japanese house, or our house in Atlanta.)
Low temperature steam also always has microscopic water droplets in it. - Jed

