Analog Refractometer NaCI

Refractometer Range 0 Percent to 28 Percent NaCI Automatic Temperature Compensation No Accuracy +/-0.2 Percent Resolution 0.002 Function Measures the Concentration of An Aqueous Solution By Measuring Its Refractive Index Features Double Hinge Daylight Plate High Quality Optical Glass Material Metal Prism Housing Non Roll Stand Rubber Grip and Hood On Eyepiece Scale Display Zero Ring Calibration Length 16 1/2 in Width 4 in Height 4 in