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

Anotations

Scope note:

Devices partially composed of a differential thermometer and used to calculate variations in conditions of the sky, particularly solar radiation, and the resulting changes in temperature. Invented by Sir John Leslie.