The Mouse-Trak Industrial track ball is designed for harsh environments. Its glass-filled Xenoy thermoplastic case and conformal coating on its circuit board support very tough usage. A free, optional-use dust ring is provided for extreme environments where dust and related particles can affect mouse performance. The device features a high-density ball as well as stainless steel shafts and bearings. While half the size of a standard mouse pad, it supports an adult hand. The track ball interoperates with standard mouse drivers, and no driver installation is required. Models are available for Sun, PC, and HP. The Mouse-Trak Industrial costs $295.
ITAC Systems Inc. www.mousetrak.com; (972) 494-3073