Frost point hygrometer

Frost point hygrometer, made by Casella, London, w

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Frost point hygrometer, made by Casella, London, w
Science Museum Group
© The Board of Trustees of the Science Museum

Frost point hygrometer, made by Casella, London, with balanced bridge thermometer indicators, marked 89/91, BBTI MkIIB, marked 828/54, Met ref 1525

Details

Category:
Meteorology
Object Number:
1995-916
Materials:
metal, glass and wood substitute
Measurements:
overall: 36.5 x 32.5 x 16.2 cm
type:
hygrometer
credit:
Meteorological Office, Berkshire