Desktop calculator Eleven CMB801BK — office calculator, 8-digit LCD, battery/solar, black, plastic housing, 102×31×137 mm

Eleven CMB801BK is a compact desktop office calculator with an 8‑digit LCD and standard 3‑digit comma separators. It performs basic arithmetic and percent conversion, offers memory key functionality (M‑) and automatic power-off to conserve battery. The unit has a plastic housing, button controls and a lightweight construction suitable for everyday desk use.

Advantages

The calculator combines battery and solar power for reliable operation, a clear single-line LCD with digit grouping for easier reading, and a compact, lightweight plastic body that fits standard office workflows. Button controls provide straightforward input and the auto power-off extends battery life.

Suitable for

• Basic office calculations and bookkeeping
• Retail or point-of-sale simple percentage and total checks
• Home budgeting and everyday arithmetic

Key specifications

• Display: 8-digit LCD, single line
• Digit grouping: Standard 3-digit comma separator
• Functions: Basic arithmetic, percent conversion, memory (M-)
• Controls: Mechanical buttons
• Power source: One lithium battery with solar assist
• Auto power off: Yes
• Housing material: Plastic
• Colour: Black
• Dimensions (W×H×D): 102 × 31 × 137 mm
• Weight: 90 g

How to use

Place the calculator on a flat surface and use the buttons to enter numbers and operations. For percent calculations, enter the base number, press the percent function and then the operation as required. Use the memory key (M‑) to store or adjust a value according to standard memory key conventions. The device will switch off automatically after a period of inactivity to save battery; ensure the battery is correctly installed and provide ambient light for the solar assist.

Usage recommendations

Do not allow the calculator to come into contact with water. Keep the device in dry indoor conditions and avoid exposure to extreme temperatures to maintain display and battery performance.