Casio HL-820ER (EURO CONVERSION)
The Casio HL-820ER 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 1.5V mercury cell. The calculator was manufactured in China. Note: Euro currency converter.
Facts at a glance:
|Power Source||1.5V mercury cell|
If you have a Casio HL-820ER that is no longer working, you can first try replacing the 1.5V mercury cell battery. 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: