Gier Dunkle MS 251 Mobile Solar Reflectometer

Gier Dunkle MS 251 Mobile Solar Reflectometer.
Rare and vintage, was used by a well-known lab.
The MS-251 is a small-scale integrating sphere.
Its operation is not that different from that of
a spectrophotometer except that it has a single
photosensor and no mono chronometer. Unit Powers
on. Good condition. No manual. As shown.
Offering “as is, final sale”.