Specialized measurement device for precise measurement of contact angles between liquids and solid surfaces, quantitatively evaluating surface wettability, water repellency, and hydrophilicity. Used in manufacturing for coating adhesion evaluation, surface treatment effect verification, adhesive wettability confirmation, and surface modification assessment of films and sheets. Equipped with automatic droplet generation function, high-resolution camera, and automatic angle analysis software, capable of measuring static contact angle, dynamic contact angle, and surface tension. Measurement instrument that achieves quality assurance through objective numerical data in surface treatment quality control of metal processed products, surface modification effect confirmation of resin molded products, and pretreatment evaluation in printing and coating processes.