Yes it is.as the barometer calculates the temperature so their working together''according RICHARD pinciple''
Hydrometer or refractometer.
It is an instrument to measure or gauge density of gravity.
A hydrometer is not a unit of distance - a hydrometer is a measuring instrument for determining the specific gravity of a liquid or solid.
An instrument for measuring the specific gravity of fluids; a form hydrometer.
Hydrometer
That's a 'hydrometer'.
Pycnometer, Digital density meter
An instrument used to measure the Specific Gravity (or Relative Density) of a liquid is called as a Hydrometer. It is the Ratio of the density of the liquid to the desnity of the fresh water (i.e. 1.000). The instrument consist of a glass chamber with Lead Shots or Mercury filled at the bottom or the base, to make it float upright.
Barometer is a weather instrument. It measures the atmospheric pressure.
The latest weather forecasting instrument invented was the barometer. This instrument measures air pressure.
A hydrometer is an instrument that measures the density of liquids. Auto batteries could be checked to see the strength of the acid in each cell before sealed batteries were made. I don't know of an instrument for solids or gases.
The instrument in an anemometer