Versatile twin-powered calculator with adding machine logic. Solar powered with battery backup prevents memory loss and keeps calculator running in all lighting conditions. Easy-to-read display with automatic three-digit punctuation.

• Versatile twin-powered calculator with adding machine logic.
• Solar powered with battery backup prevents memory loss and keeps calculator running in all lighting conditions.
• Easy-to-read display with automatic three-digit punctuation.
• Auto power off after seven minutes.