Contact Angle tester (contact Angle droplet Angle tester), by measuring the solid - liquid - gas three-phase interface contact Angle, calculation, determination of liquid to solid adhesion, tension, surface energy and other indicators. The instrument is widely used, suitable for scientific research institutes, universities, quality inspection departments for product quality testing, new materials and new products research and development and trial production applications. This machine can carry on the constant speed, the constant Angle precision rotation, used to measure the dynamic contact Angle. Microcontrol technology is applied to transfer the image into the computer for preservation and analysis. Fast speed, accurate data, easy to operate.