She points out that while colostrum with a reading of 22-23% (rather than the normal 25-26%) is still good for calves, it can nevertheless indicate an issue with cow health. “It might be that ...

The modern versions of the Abbe refractometer have improved design features, such as thermo-stabilized prism mounts, fixed telescope mounts and a combined view of the shadow boundary and scale, ...

The Rudolph J257 Refractometer offers 1 pt, 2 pt, or a full multi-point calibration. Calibration can be done at 20°C, 25°C or any user selectable temperature within the available range.

Smart Measure™ solution: Automated clean prism monitoring is now integrated in the Rudolph Research J457 Laboratory Refractometer. Smart Measure™ knows when the Refractometer’s prism is clean.