Analog Refractometer, Range 0 Percent to 28 Percent NaCI, Automatic Temperature Compensation No, Accuracy +/-0.2 Percent, Function Measures the Concentration of An Aqueous Solution By Measuring Its Refractive Index, Features Double Hinge Daylight...
Zoro
134.99 VEE GEE 43002 Refractometer, Analog, 0-32
126.99 LAXCO RHC-200ATC Analog Refractometer,Hand...