Desktop calculator CASIO MS-20UC-GN — Basic, 12-digit, battery/solar, tax & profit functions, green

CASIO MS-20UC-GN is a basic desktop calculator with a 12-digit single-line LCD display and dual power (solar + battery). Designed for straightforward arithmetic and simple financial tasks, it provides dedicated tax and profit calculation functions, time calculation, and an extra-large display for easier reading. The unit features plastic keys with key rollover to store fast inputs and function command signs on-screen to indicate the current operation. The calculator comes in green and is suitable for office desks, retail points of sale and everyday accounting basics.

Advantages

The dual power system switches between solar and battery to maintain operation in varying light conditions while conserving battery life. Tax and profit calculation functions automate common financial operations such as price plus tax, price less tax, tax amount, discount amount and margin amount, reducing manual steps. Time calculation supports hour, minute and second inputs for simple time-based arithmetic. The extra-large 12-digit display and on-display operation symbols improve visibility and transparency during use, and the key rollover buffer prevents lost entries during high-speed input.

Suitable for

• Everyday office arithmetic and desk use
• Retail checkout calculations involving tax and discounts
• Basic bookkeeping and simple profit margin checks
• Time-based calculations for short duration sums

Key specifications

• Display: 12-digit single-line LCD, extra-large digits
• Power: Dual power — solar with battery backup (LR54 battery)
• Functions: Tax calculation (price plus/less tax, tax amount), profit/margin calculation, discount calculations
• Time calculation: hour, minute and second input and calculation
• Keys: Plastic keys with key rollover buffer
• Operation indicators: On-screen function command signs (+, -, ×, ÷)
• Color: Green housing

How to use

Place the calculator on a flat surface with sufficient light for optimal solar operation. Use the numeric and arithmetic keys for basic calculations; function command signs on the display indicate the active operation. Use the dedicated tax and profit keys to perform price-plus-tax, price-less-tax, discount and margin calculations by entering the base value and following the on-screen prompts or labeled key sequence. For time calculations, enter hours, minutes and seconds in the supported format and perform the desired arithmetic operations. The key rollover feature stores rapid key inputs so you do not need to repeat presses when typing quickly.

Usage recommendations

To extend battery life, keep the calculator exposed to ambient light when not in use and rely on solar power when possible. Replace the LR54 battery when the display dims or operation becomes intermittent. Avoid exposure to extreme temperatures or moisture and clean the plastic keys gently with a soft, dry cloth.