The Casio ST-1 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 9 functions, 26 keys, and a VFD (vacuum fluorescent) display. The power source is AA batteries. The calculator was manufactured in Japan.
Facts at a glance:
If you have a Casio ST-1 that is no longer working, you can first try replacing the AA 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: