Introduction: Grayhill, Inc. is a leading designer and manufacturer in the field of customized interface solutions, switches, and electronic components. The products include control panels, keyboards, rotary switches, optical and mechanical encoders, joysticks, buttons, I/O modules, racks, and DIP switches. Grayhill possesses expertise in engineering design, development, and manufacturing, capable of quickly providing cost-effective standard and customized products. Since its establishment in 1943, Grayhill has been committed to providing high-quality solutions for various applications in the defense, aerospace, medical, agricultural, construction, automotive, and electronics industries.