| 12 digit extra large display |
| 12 digit tilted large display |
| 4 key memory |
| Auto power-off |
| Dual power |
| Dual-powered solar and 1x LR44 battery (supplied) |
| Extra large 12-digit display |
| Four key memory |
| Includes a backspace key to correct mistakes |
| Key operations are stored in the buffer, so nothing is lost, even during high-speed input |
| Mark up |
| Mark up key |
| Percentage calculation |
| Performs basic functions, as well as percentage calculations |
| Sign change +/- |
| Solar powered when light is sufficient, battery powered when light is dim |
| Square root |
| Square root key |