This Texas Instruments TI-81 graphing calculator is a reliable tool for any business or office. It has been thoroughly tested and comes with a protective cover, ensuring its longevity. The calculator is perfect for various calculations, including graphing, and is equipped with a regular-sized display screen. The TI-81 model is known for its durability and precision, making it a great investment.

The calculator is a Texas Instruments brand, known for its quality and accuracy. It falls under the category of business and industrial, office equipment, and calculators. The calculator is a graphing type, meaning it can perform complex mathematical calculations and plot graphs with ease. With its excellent performance and excellent condition, this Texas Instruments TI-81 graphing calculator is a perfect addition to any office or business.pre owned good condition we ship fast