Psychrometer Whirling Hygrometer, Wet & Dry Bulb Thermometer, Casella London

This psychrometer whirling hygrometer is a must-have for any scientist or collector interested in scientific instruments. It features a wet and dry bulb thermometer and is made of high-quality wood.

This piece was manufactured in the United Kingdom and dates back to the period of 1951 to the present. It is a perfect addition to any collection of scientific collectables and is sure to impress any observer. The brand, Casella from London, is well-known for producing high-quality instruments, and this is no exception.

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