Designed as a research quality instrument the Rudolph J357 Automatic Digital Refractometer offers one of the highest measurement ranges of any instrument in the Rudolph refractometer product line.

Topcon is proud to introduce the new KR-800 & RM-800 Auto Kerato/Refractometers both of which incorporate the very latest in design technology & ergonomics. The units features a bright, new 8.5 inch ...

Instaref is powered with an infrared imaging feedback and instrument tilt warning system to ensure appropriate alignment of eyes during the examination for accurate cylindrical values. A report can be ...