Casio SL-310SV 10-Digit Solar-Powered Wallet-Size Basic Calculator
Casio SL-310SV 10-Digit Solar-Powered Wallet-Size Basic Calculator
Casio SL-310SV 10-Digit Solar-Powered Wallet-Size Basic Calculator
Casio SL-310SV 10-Digit Solar-Powered Wallet-Size Basic Calculator

Casio SL-310SV 10-Digit Solar-Powered Wallet-Size Basic Calculator

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Enjoy free shipping on orders over $29.99. A flat $4.99 shipping fee applies to smaller orders.

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Returns Policy

Most new and unopened items qualify for returns within 30 days of delivery.

Eligible return shipping costs are covered by us. Certain items, including custom products, limited editions, hygiene-sensitive items, oversized items, and final sale products, may not be eligible for return.

Refund Timeline

Most refunds are completed within 5–7 business days after the returned item is received and inspected.

This timeline may include:

  • 5–10 business days for return transit
  • 3–5 business days for inspection and processing
  • 5–10 business days for your bank to finalize the refund

How to Return an Item

To start a return, please visit your account and go to your order history. Once your request is submitted, you will receive an update by email after the return is reviewed and processed.

Shipping Information

We currently ship within the United States.

Free shipping is available on orders of $29.99 or more. Orders below $29.99 are subject to a flat $4.99 shipping fee.

Orders are typically processed within 1–2 business days. Estimated delivery times shown on product pages reflect both processing time and transit time.

Minor delays may occur due to carrier or weather conditions.

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Always ready to calculate, wherever you go—the Casio SL-310SV combines practicality with portability. Powered by the sun (with battery backup), it delivers reliable performance everyday, without the hassle of changing cartridges.

Its 10-digit extra-large LCD display ensures clear visibility for all your calculations—from homework to budgeting or office work. Designed in a slim, wallet-size form with protective case, it’s ideal for students and professionals alike.

Featuring essential functions like percentage, square root, and independent memory recall, it offers everything you need in a compact, durable metal-faced design with automatic power-off to save energy. Lightweight and rugged, it’s built for daily use—from classrooms to briefcases.


Package Includes

  • 1 × Casio SL‑310SV Calculator

  • 1 × Protective Wallet-Style Case

  • Instruction Sheet


Frequently Asked Questions (FAQ)

Q: Is it easy to read?
A: Yes—10-digit large LCD screen for clear display.

Q: What powers this calculator?
A: Solar-powered with a battery backup—no cartridges needed.

Q: Is it durable and portable?
A: Yes—metal faceplate and pocket-sized design make it ideal for on-the-go use.

Q: What basic functions does it support?
A: Includes percentage, square root, memory store/recall, and auto power-off for efficiency.

Q: Perfect for which users?
A: Great for students (primary to high school), office use, or anyone needing a reliable, portable calculator.


Technical Specifications

Feature Description
Display 10‑digit large LCD
Power Source Solar with battery backup
Size & Portability Slim, wallet-size with protective case
Basic Functions %, √, memory functions, auto power‑off
Build Quality Durable metal faceplate

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