Basic pocket calculator CASIO SL-310UC-GN — 10-digit, battery/solar, LR54, 29 keys, green

The Casio SL-310UC-GN is a pocket-sized basic calculator with a 10-digit single-line display. It supports automatic tax calculations, time calculations, and profit margin percentage functions. The calculator uses dual power (solar plus battery) to ensure operation in various lighting conditions and features an extra-large display with plastic keys for straightforward use.

Advantages

The device performs automatic tax and margin computations, allowing price-plus-tax, price-less-tax, tax amount, discount amount and margin amount calculations. Time calculation lets you enter and compute hours, minutes and seconds. Key rollover stores rapid key inputs in a buffer to prevent missed entries. The two-way power system switches between solar and battery power as needed, and the extra-large display improves readability while plastic keys provide reliable tactile input.

Suitable for

• Everyday pocket use for quick arithmetic
• Retail tasks requiring tax and discount calculations
• Basic profit margin and percentage computations
• Time-based calculations for simple hour/minute/second entries

Key specifications

• Brand: CASIO
• Model: SL-310UC-GN
• Display: 10 digits, single-line, extra-large
• Power: Two-way (solar + battery)
• Keys: Plastic keys with key rollover buffer
• Functions: Tax calculation, time calculation, profit margin (%)
• Color: Green

How to use

Turn on the calculator and enter numbers using the plastic keys. Use the tax function keys to calculate price plus tax or price less tax and to obtain tax or discount amounts. Use the time calculation mode to input hours, minutes and seconds for appropriate computations. Use the percent (%) key to compute profit margins, discounts and percentage-based adjustments. The display shows a function symbol (+, -, ×, ÷) to indicate the current operation.

Usage recommendations

Use the calculator in well-lit environments to maximize solar charging; replace the battery when solar power is insufficient. Keep the display and keys clean and avoid exposure to extreme temperatures for reliable operation.