Sharp EL-821 (ELSIMATE)
The Sharp EL-821 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 5 functions, 24 keys, and an LCD (liquid crystal) display. The power source is 2xLR1130.
Facts at a glance:
If you have a Sharp EL-821 that is no longer working, you can first try replacing the 2xLR1130 batteries. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent. We suggest the following current models as possible replacements: