Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment (hierarchy name)
4. Measuring Devices (hierarchy name)
5. measuring devices (instruments)
6. [measuring devices for phenomena]
7. meteorological measuring devices
8. [measuring devices for atmospheric pressure]
9. barometers

Anotations

Scope note:

Barometers that depend on neither hydrostatic equilibrium nor the laws of gases but instead on measurement of force exerted by the atmosphere on some component of the mechanical system; often calibrated for use as altimeters.