The Idena calculator TR 100 is a versatile and practical tool for all your calculations. With its 8-digit display, it provides ample space to clearly and distinctly show numbers. The calculator can be powered by both solar energy and batteries, ensuring that it is always ready for use. With functions such as square root calculation, percentage calculation, and a memory function, this calculator is ideal for school, work, and everyday life. The TR 100 comes in black and silver and features a handy protective cover that shields the display from scratches and damage. This calculator is compact and user-friendly, fitting perfectly into any bag or desk drawer. With the Idena TR 100, you have a reliable tool at your fingertips to assist you with your calculations. Order it now and make your life easier with a practical calculator that fits into any workspace!.