Also known as Zahn cups, these meters determine the viscosity of liquids with a quick dip. You can simultaneously measure temperatures from 0 degrees to 220 degrees. To use, dip the testing cup into liquid, remove, and use a stopwatch to time how long it takes for liquid to drain out of the cup. Viscosity is reported in seconds and can be converted to centistokes using the provided formula. Testing cups are made of 304 S.S.. Overall size is 14.4 long x 1.8 wide x 1.4 deep. Conforms to ASTM D4212. Choose from types for: 1 solvents and very thin oils: 2 Thin oils, mixed paints, and lacquers: 3 medium oils and mixed paints: 4 heavy liquids: 5 very heavy liquids and mixtures. . Range of centistokes 1. 20-115, 2 45-305, 3 200-875, 4 365-1180, 5 500-1850. They are 250.00 each