J357 Research Refractometer

The J357 high performance refractometer is designed as a research quality instrument and offers one of the highest measurement ranges of any instrument in the Rudolph Research refractometer product line. This instrument offers the same extra wide refractive index measurement range as the Rudolph Research chemical industry refractometer models combined with the high accuracy of our food industry refractometer models. It also offers very powerful automatic electronic temperature control (heating and cooling) and is able to make RI and BRIX measurements at up to 100 °C. The J357 is a perfect choice for the most demanding pharmaceutical, chemical, petroleum, essential oils, fragrance and cosmetic refractometer users.