A larger display makes more data easier to read. Solar is powered when light is sufficient, and batteries are powered when light is insufficient. Key operations are stored in a buffer, so nothing is lost even during high-speed input.
Key Features:
- Extra-large display
- Two-way power
- Key rollover
- Plastic keys
- Durable metal faceplate
- Cost/sell/margin
- Tax calculation
- Profit margin percent
