Brannan Sling Psychrometer (Whirling Hygrometer) Type_Olive Scale the hue (colour) and the

the hue (colour) and the chroma (degree of saturation) for that colour

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613 or any other specific holding gear with outer thread M3

highly visible marks that write smoothly on Rite in the Rain paper making it perfect for note taking

With thousands of units deployed across Australia

Brannan Sling Psychrometer (Whirling Hygrometer) Type_Olive Scale the hue (colour) and theBrannan Sling Psychrometer (Whirling Hygrometer) The Brannan Sling Psychrometer (Whirling Hygrometer) is a manual instrument used to measure relative humidity using the wet and dry bulb principle. It is designed with a rotating handle that allows the thermometer bulbs to be whirled through the air, ensuring accurate and consistent airflow for reliable readings. The unit is filled with a spirit based liquid and is supplied as a complete kit in a