The RL-4 refractometer is the successor to the excellent RL-3 refractometer by PZO.

It is designed to measure refractive indices and medium dispersion of liquids and solids and to determine the percentage sugar content in water solutions. 
After connecting the thermostat, the refractometer can work in the Peltier system.

 This refractometer can be used as a measuring instrument, after obtaining a calibration certificate by an authorized calibration laboratory. For our customers, we provide the opportunity to obtain a calibration certificate.