Nr. 13639229
Lambrecht's Polymeter - hygrometer-thermometer - Switzerland - beginning of XX century
Nr. 13639229
Lambrecht's Polymeter - hygrometer-thermometer - Switzerland - beginning of XX century
Lambrecht's Polymeter - C.A. Ulbrich & Co. Zurich - beginning of XX century
A Combination of Hair Hygrometer and Mercury Thermometer. This hygrometer-thermometer instrument combination allows reading of relative and absolute humidity, temperature, dew point temperature, saturation pressure and partial pressure of the water vapor.
Dimensions: 8 x 24 cm
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