Klett colorimeter made by Hellige, c.1930

This device is a Klett Colorimeter, a device used to carry out the technique of 'colorimetry', the measurement of the absorbance of particular wavelengths of light by a specific solution, which can be used to determine the concentration of a known solute in that solution. It was made by the German manufacturer F. Hellige and Co, c.1930.

Klett Colorimeters were specifically designed for clinical laboratory work, used to determine the concentration of hemoglobin, or other substances, in blood. It is named after its inventor, Robert E. Klett, who established the Klett Manufacturing Co. in 1916.

This device is a component of a Klett Colorimeter, a device used to carry out the technique of 'colorimetry', the measurement of the absorbance of particular wavelengths of light by a specific solution, which can be used to determine the concentration of a known solute in that solution. It was made by the German manufacturer F. Hellige and Co, c.1930.

Klett Colorimeters were specifically designed for clinical laboratory work, used to determine the concentration of hemoglobin, or other substances, in blood. It is named after its inventor, Robert E. Klett, who established the Klett Manufacturing Co. in 1916.

This is a component part of a Klett Colorimeter, a device used to carry out the technique of 'colorimetry', the measurement of the absorbance of particular wavelengths of light by a specific solution, which can be used to determine the concentration of a known solute in that solution. It was made by the German manufacturer F. Hellige and Co, c.1930.

Klett Colorimeters were specifically designed for clinical laboratory work, used to determine the concentration of hemoglobin, or other substances, in blood. It is named after its inventor, Robert E. Klett, who established the Klett Manufacturing Co. in 1916.

This is a component part of a Klett Colorimeter, a device used to carry out the technique of 'colorimetry', the measurement of the absorbance of particular wavelengths of light by a specific solution, which can be used to determine the concentration of a known solute in that solution. It was made by the German manufacturer F. Hellige and Co, c.1930.

Klett Colorimeters were specifically designed for clinical laboratory work, used to determine the concentration of hemoglobin, or other substances, in blood. It is named after its inventor, Robert E. Klett, who established the Klett Manufacturing Co. in 1916.

This is a component part of a Klett Colorimeter, a device used to carry out the technique of 'colorimetry', the measurement of the absorbance of particular wavelengths of light by a specific solution, which can be used to determine the concentration of a known solute in that solution. It was made by the German manufacturer F. Hellige and Co, c.1930.

Klett Colorimeters were specifically designed for clinical laboratory work, used to determine the concentration of hemoglobin, or other substances, in blood. It is named after its inventor, Robert E. Klett, who established the Klett Manufacturing Co. in 1916.