Hygrometer in a metal case
The Negretti & Zambra hygrometer, produced around 1950, draws attention with its striking contrast: a pristine white enamel dial set against a matte black metal case, highlighting the instrument’s refined aesthetic. This contrast is further emphasized by the black elements — the brand name, logo, and the humidity scale itself — all meticulously crafted, embodying the precision and artistry of Negretti & Zambra.
The 10.5 cm case is fitted with a practical hanging ring, allowing the hygrometer to be conveniently placed wherever needed. But the true value of this instrument lies in its technical sophistication: at its core, it operates on the hygroscopic property of hair, which sensitively responds to humidity changes, ensuring precise readings.
This instrument represents not only an example of high-quality craftsmanship but also a symbol of mid-century scientific advancement, a time when Negretti & Zambra were dedicated to creating tools that could accurately capture the subtleties of natural fluctuations.
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