MBO MONARCH I
The MBO MONARCH I is an arithmetic calculator with 8 digits precision and algebraic logic. It has 15 functions, 30 keys, and a VFD (vacuum fluorescent) display. Note: inch/cm conversions
Facts at a glance:
If you have a MBO MONARCH I that is no longer working, you can consider replacing the calculator with a modern equivalent.
We suggest the following current models as possible replacements: