The instrument fit included a 'Pezzoni' compass, a 'Sonia' aerometer, a variometer , 'OMI' altimeters and fire detectors with extinguisher
Kaynak: Caproni Ca.111

balloon and other devices, such as the hydrometer and reflecting goniometer , and improved the Gravesand heliostat and Fahrenheit's aerometer .
Kaynak: Jacques Charles

Hydrometer s, an aerometer , a hydrostatic bellows , a balance and steam pump , several table-top fountain s all were used to look into
Kaynak: Museum Boerhaave