Quick view Pyxis Pyxis RT-100 PRISM Inline Refractometer MSRP: ₲36.313.121 The RT-100 Prism is an inline digital refractometer that measures the refractive index of a liquid sample and provides a direct reading of highly accurate concentration values for a wide variety of... MSRP: ₲36.313.121 Add to Cart The item has been added Add to Wish list Compare