Ergonomically designed for right-handed users: The keyboard is configured in an innovative staircase design with a 3° slope from right to left. Compared to conventional desktop calculators, this innovative keyboard design causes less torsion of the forearm and rotation of the wrist as it adapts to the natural finger and hand position. The stair-step key shape allows for perfect vertical keystrokes, making typing easier, reducing strain and helping to prevent repetitive strain injuries (RSI). This reduces the muscle activity of these 3 muscles: Musculus pronator teres, Musculus extensor carpi radialis and Musculus flexor carpi radialis.

Calculating functions

• Tax calculation
• Currency conversion (3 rates)
• Professional percentage calculation
• Mark Up with percent key
• Square root key
• Algebraic sign change
• Rounding setting
• Input buffer

Memory

• Total sum memory (GT)
• 4-key memory

Display

• 12-digit display
• LC display
• Calculation command display
• Subdivision by thousands

Energy supply

• Solar/battery powered
• Memory protection battery (1 x CR-2025)
• Automatic switch-off

Input

• Double zero key

Materials / External Features

• Plastic buttons
• Metal front
• Professional keyboard
• rubber feet
• Ergonomic key shape
• Ergonomic keyboard for right-handers
• Dimensions: 111 x 24 x 178 mm
• Weight: 210 g