- Regular percent: Regular percentage calculations.
- Two-way power (Solar + Battery): Solar powered when light is sufficient, battery powered when light is insufficient.
- Key rollover: Key operations are stored in a buffer, so nothing is lost even during high-speed input.
- Extra Large display: Larger display makes more data easier to read.
- Size of case / Total weight: Dimensions (W x D x H) : 141×120×6.5mm