The Donau office calculator is a versatile and functional device that is ideal for use in the office or at home. With a 14-digit display, it allows for clear and precise calculation readings. The calculator is equipped with a dual energy system that utilizes both solar power and batteries, ensuring reliable use in various lighting conditions. Its compact design and fixed display angle make it both space-saving and user-friendly. Practical features include square root and percentage calculation functions, as well as the ability to store two numbers in separate memory slots. The calculator automatically shuts off to save energy and comes with a 5-year warranty, highlighting its durability and reliability.

• Dual energy system (solar and batteries)
• Square root and percentage calculation functions
• Two memory slots for numbers
• Automatic shut-off for energy savings
• 5-year warranty.