The unit measures the refraction of light generated between the prism surface and a liquid sample. The PRM-100α is upgraded from the PRM-85 in the following aspects:

• • Wider than ever 0.0 to 100.00% Brix range
• • Improved measurement accuracy: Brix ±0.05%, nD ±0.00010
• • Two options for setting the minimum indication decimal place
• • Simple two-piece construction: detection section and operation display section
• • Easy-to-read color display panel.