The Rhino Industrial Fluid Tester (IFT), a rugged handheld refractometer, quickly and accurately determines ratio or concentration of water-soluble industrial fluids or lubricants. The Rhino IFT40 is designed for cutting fluids, water-soluble lubricants, fire-fighting foam and any water-soluble fluid. This instrument is feature-packed with a rugged, chemical resistant housing to stand up to the demands of field use.