The Omron 12SR is a scientific calculator with 12 digits precision and RPN (reverse polish notation) logic. It has 60 functions, 30 keys, and a VFD (vacuum fluorescent) display. The power source is 3xAA. The calculator was manufactured in Japan.
Facts at a glance:
If you have an Omron 12SR that is no longer working, you can first try replacing the 3xAA batteries. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent. We suggest the following current model as a replacement: