Configuration:0 to 18% | Style:Lubricants (ATC) Product description Use these refractometers to take accurate and repeatable measurements of sugar, salt, lubricants, antifreeze, cutting fluids, and more! Simply place 2 or 3 drops of your sample on the prism; the focus adjustment makes the scale easy to read. Automatic temperature compensation ensures accurate readings from 50 to 86°F (10 to 30°C). Includes calibration solution to ensure accurate results From the Manufacturer Refractometer measures the concentration of lubricants and cutting fluids. Compact and easy to operate. Requires only 2 or 3 drops of solution and provides accurate and repeatable measurements on an easy to read scale. Prism and lens with a simple focus adjustment and Automatic Temperature Compensation from 10 to 30°C. Comes complete with case, calibration screwdriver, plastic pipette and calibration solution