Sharp EL-BN691X (ELSIMATE)
The Sharp EL-BN691X is an arithmetic calculator with 10 digits precision and algebraic logic. It has 16 functions, 31 keys, and an LCD (liquid crystal) display.
Facts at a glance:
If you have a Sharp EL-BN691X that is no longer working, you can consider replacing the calculator with a modern equivalent. We suggest the following current models as possible replacements: