The TECH OFFICE calculator from Donau is a versatile office calculator equipped with a 12-digit display. It offers both battery and solar power options, making it a practical companion for daily use. With its compact dimensions, it is ideal for the desk and allows for easy handling. The calculator supports a variety of functions, including square root and percentage calculations, as well as special calculations like MU margins. The automatic shut-off feature ensures a longer battery life, while the dual memory and decimal settings further enhance usability. With a five-year warranty, this calculator also provides reliable quality.

• Battery and solar powered for flexible use
• Functions for square root and percentage calculations
• Dual memory and decimal settings
• Automatic shut-off for energy savings
• 5-year warranty for added security.