Aircraft strut psychrometer, with set and dry bulb

Made:
1927

Aircraft strut psychrometer, with set and dry bulb mercury in glass Fahrenheit thermometers set in air tube to face direction of travel, made by Negretti & Zambra ( trade mark) and thermometers marked MO 31301/27 and MO 31302/27. Both also marked NPL 27. Dated 1927

Details

Category:
Meteorology
Object Number:
1995-925
Materials:
glass and metal
Measurements:
support: 36 cm
type:
psychrometer
credit:
Meteorological Office, Berkshire