Analog Refractometer,Salinity,1 in.W
1 in Analog Refractometer, Salinity, Range 1.070, Features All Metal Housing, Calibration Screw, Glass Prism, Non Roll Stand, Rubber Eye Cup, Rubber Grip, Scale Display, Single Hinged Daylight Plate, Width 1 in, Height 1 in, Dia..070, Automatic Temperature Compensation Yes, Accuracy +/-1 Percent, Resolution 0.