Beijing Hongyuan Optical Instrument Co., Ltd.

Honey Refractometer are developed for the measuring of the three common indexed of honey. The three common indexes are sugar content, baume and water

Brix refractometers are very commonly used for low, middle and high resolution Brix concentration. The model also can be used for industry fluid test

Battery/Antifreeze/Cleaning Fluid Refractometer are designed for measuring the concentration of the battery fluids. the freezing point of antifreeze l