The TECH desk calculator from Donau is a versatile desktop calculator that is ideal for office use. With a 12-digit display, it provides a clear and precise readout for all calculations. The calculator is powered by both batteries and solar energy, allowing for flexible usage. With a wide range of 112 functions, including special calculations such as square roots and percentage calculations, it is well-equipped for complex tasks. Its compact design, measuring 185 x 140 x 37 mm, makes it a practical companion for any desk. Additionally, the automatic shut-off function extends battery life. The TECH desk calculator comes with a 5-year warranty, providing extra confidence in the product's quality.

• Battery and solar-powered for flexible use
• 112 functions, including square root and percentage calculations
• Sign change and MU margin calculations
• Automatic shut-off function for energy savings
• 5 years warranty for added security.