A portable instrument to test slip resistance of floors. Measures both DCOF and SCOF, in both dry and wet conditions. Qualified for use with ANSI A326.3 'American National Standard Test Method for Measuring Dynamic Coefficient of Friction of Hard Surface Flooring Materials'. A fully electronic test without human input except for the pressing of a button, making it more difficult for the operator to manipulate the results of the test. The test data can be easily seen via the digital display, immediately printed on a slip or saved and imported to a computer.