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DLSPH Occupational Health

A rectangular instrument with a grey base and a white top. The shell of the instrument is constructed of sturdy plastic. On one side of the instrument is located a burgundy knob. On the opposite side is a label that depicts two graphs indicating dew point according to temperature, pressure, and humidity. Two glass tubes can be seen through holes or voids in the top lid.

Accession Number: 2016.phlt.1.93

Alternative Name: Bendix Psychron

Primary Materials: Plastic, Glass, Metal


A label on the side of the instrument lists the model number “566”.

Dimensions (cm): Length = 25, Width = 4.5, Height = 11.


This instrument was used to determine atmospheric humidity.

Condition: Excellent

Associated Instruments:


Bendix, Environmental Services Division, Baltimore, Maryland

Date of Manufacture: Unknown


Additional Information and References:

Historical Notes: