The Texas Instruments TI-83 Plus Handheld Graphing Calculator is a reliable tool designed for students and professionals alike. With a regular-sized LCD display and programmable features, this handheld calculator allows users to graph complex equations and functions with ease. Powered by batteries, this model is compact and convenient for on-the-go use in various industries. The TI-83 Plus is a trusted choice for those in need of advanced mathematical capabilities in a portable package. Has been tested and works it is missing the battery cover which is shown in the pictures
eBay