The Donau office calculator is a practical and functional device designed for daily use in the office or at home. With a 12-digit display, it allows for clear and precise calculation readings. The calculator is equipped with a dual power system that utilizes both solar energy and batteries to ensure reliable operation. Its compact design, measuring 137 x 101 x 30 mm, makes it an ideal companion for the desk or on the go. Additionally, the calculator offers a variety of functions that facilitate the calculation of square roots and percentages. The memory function and the GT key for subtotal calculations expand its usability and increase efficiency when working with numbers.

• Dual power system (solar and batteries)
• Square root and percentage calculation functions
• Memory function for frequent calculations
• GT key for subtotals
• Automatic shut-off for energy saving.