| we can supply Pocket Digital RefractometerMODEL:PDR28S SCALES:SALINITY,REFRACTIVE INDEX RANGE:SALINITY 0-28%REFRACTIVE INDEX 1.3330-1.3900 DIVISIONS:SALINITY 0.1REFRACTIVE INDEX 0.0001 ACCURACY:BRIX ±0.1REFRACTIVE INDEX ±0.0003 Original:BRIX 0REFRACTIVE INDEX 1.3330 | 
