The MBO ESR-817 is a scientific calculator with 8 digits precision and algebraic logic. It has 20 functions, 26 keys, and an LED (light-emitting diode) display, typical of calculators of this era.
Facts at a glance:
If you have a MBO ESR-817 that is no longer working, you can consider replacing the calculator with a modern equivalent. We suggest the following current model as a replacement: