The new panel mount PM-TB offers solid-state laser trackball technology in a completely sealed and waterproof enclosure. Designed to meet NEMA 4X protection, the PM-TB's 38-mm trackball sits inside polycarbonate housing with stainless steel bezels. The trackball is easily removable for convenience cleaning, while an adjustable tension ring ensures the proper amount of trackball smoothness for any user. In addition, the PM-TB features sealed stainless steel switches, including a programmable button. The PM-TB is ESD-safe, and available with the choice of either PS/2 or USB cables.