Dimensions 140 x 140 mm, humidity 0 to 100% rh, temperature -10 to 50 °C
Human hair hygrometer combined with bimetal thermometer for climate measurement in the wine cellar.
The instrument is set in diamond polished brass.
Ivory colored dial.
Real wood case, stained in mahogany and painted.
Dimensions 140 x 140 mm.
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