The Sharp EL-337C is a 12‑digit electronic calculator powered by a built‑in solar cell and an LR44 alkaline manganese battery. It features automatic power‑off after about 7 minutes of inactivity, a tilt‑display, and functions such as Grand Total, Answer Check, and multiple conversion rates.
The manual explains basic operations, how to set decimal points, use the resume function, perform tax calculations, and replace the battery. Safety notes advise against pressing the LCD too hard, keeping batteries away from fire and children, and proper disposal.
| Type | Electronic calculator |
|---|---|
| Operating capacity | 12 digits |
| Automatic Power‑off | Approx. 7 min |
| Operating temperature | 0 °C – 40 °C (32 °F – 104 °F) |
| Dimensions | 108 mm × 175 mm × 22 mm |
| Accessories | Alkaline manganese battery (installed) |
If no key is pressed for about 7 minutes, the calculator automatically shuts off to save battery power.
Set the tax rate (up to four digits) using the tax rate switch, then perform the calculation; the rate is retained until changed or the battery is depleted.