Radio Shack EC-304 (mity-thin or CHRONOWATCH LCD)
The Radio Shack EC-304 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 5 functions, 24 keys, and an LCD (liquid crystal) display. The calculator was manufactured in Hong-Kong. Note: time/date function
Facts at a glance:
If you have a Radio Shack EC-304 that is no longer working, you can consider replacing the calculator with a modern equivalent.
We suggest the following current models as possible replacements: