The Hamometer is a device for measuring blood content in a specific compound such as hemoglobinInside a green wooden box lined with velvet cloth is the Humometer. It is a round device that stands on the base of a thick, black metal arch. At the base of the circle is a glass window for light, in the wall of the circle there is an opening into which a glass panel is inserted with the blood sample located on the inside of the glass panel. In the viewfinder in the upper area look at the sample and alternatively you can see the scale of the result.