---
product_id: 770397671
title: "CTIFREE FC-991EX Scientific Calculator with Advanced 552 Functions- Solar & Battery Powered, Multi-Function, High School & College Math, Trigonometry, Statistics, Algebra, Durable, Large Display"
brand: "facehub47"
price: "₩7974"
currency: KRW
in_stock: false
url: https://www.desertcart.kr/products/770397671-ctifree-fc-991ex-scientific-calculator-with-advanced-552-functions-solar
store_origin: KR
region: South Korea
---

# 32% larger high-res display Dual solar & battery power 552 advanced functions CTIFREE FC-991EX Scientific Calculator with Advanced 552 Functions- Solar & Battery Powered, Multi-Function, High School & College Math, Trigonometry, Statistics, Algebra, Durable, Large Display

**Brand:** facehub47
**Price:** ₩7974
**Availability:** ❌ Out of Stock

## Summary

> 🔢 Elevate your problem-solving game with the ultimate scientific calculator!

## Quick Answers

- **What is this?** CTIFREE FC-991EX Scientific Calculator with Advanced 552 Functions- Solar & Battery Powered, Multi-Function, High School & College Math, Trigonometry, Statistics, Algebra, Durable, Large Display by facehub47
- **How much does it cost?** ₩7974 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/770397671-ctifree-fc-991ex-scientific-calculator-with-advanced-552-functions-solar)

## Best For

- facehub47 enthusiasts

## Why This Product

- Trusted facehub47 brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Power That Never Quits:** Solar plus battery backup ensures uninterrupted performance anytime, anywhere
- • **See More, Solve Faster:** Large, crystal-clear LCD screen shows detailed equations and spreadsheets simultaneously
- • **Textbook-Style Display:** Formulas appear exactly as in textbooks, boosting accuracy and confidence
- • **Built to Last & Supportive:** Durable ABS body with 365-day warranty and responsive customer care
- • **Master Complex Calculations:** 552 functions covering calculus, matrices, stats & more for every STEM challenge

## Overview

The CTIFREE FC-991EX is a professional-grade scientific calculator featuring 552 advanced functions including calculus, matrix, and statistical operations. It boasts a 32% larger high-resolution LCD that displays formulas as in textbooks, enhancing clarity and learning. Powered by both solar energy and battery backup, it guarantees reliable use in any setting. Constructed from durable ABS material, it comes with a 365-day warranty and responsive customer support, making it ideal for high school, college, and professional STEM users.

## Description

CTIFREE FC-991EX SCIENTIFIC CALCULATOR 552 Functions: Includes spreadsheet, matrix calculations, statistics, calculus, complex number calculations, equation calculations, standard deviation, vector calculations, permutations and combinations. Perfect for Advanced and Beginner courses including Biology, Chemistry, Physics, Finance and Business.

## Features

- CTIFREE FC-991EX 552 FUNCTIONS SCIENTIFIC CALCULATOR: Includes spreadsheet, matrix calculations, statistics, calculus, complex number calculations, equation calculations, standard deviation, vector calculations, permutations and combinations. Perfect for Advanced and Beginner courses including Biology, Chemistry, Physics, Finance and Business
- USER FRIENDLY FORMAT: Displays formulas and expressions as they appear in textbooks, simplifying learning and problem-solving. This feature ensures that complex equations are presented in a clear, structured manner, making it easier for users to follow along and verify their work, ultimately enhancing accuracy and understanding in both educational and professional settings
- LARGE HIGH RESOLUTION SCREEN: The high-resolution LCD display is 32% larger than regular two-line calculators, showing intricate details ideal for advanced operations such as spreadsheets and 4x4 matrix calculations. The spacious screen allows graphs and equations to be displayed simultaneously, enhancing the clarity and precision of your work
- DUAL POWER SOURCE: Features both solar power and a battery backup, guaranteeing continuous performance for crucial calculations, making it reliable and efficient for use in any environment
- DURABILITY and QUALITY: Engineered with strong materials,CTIFREE FC-991EX withstands extensive use, providing long-term reliability. If your calculator fails to turn on, try pressing the reset button on the back. For further issues, benefit from our 365-day limited warranty. Contact us, and we'll respond within 24 hours

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Facehub47 |
| Manufacturer | FACE HUB 47 FZE |
| Model Name | CTIFREE FC-991EX |
| Product Dimensions | 7.2 x 3.7 x 0.1 cm; 180 g |
| Batteries | 1 LR44 batteries required. |
| Item part number | FC-991EX |
| Compatible Devices | Scientific calculator |
| Number of items | 1 |
| Standing screen display size | 3 Inches |
| Display Type | LCD |
| Power Source | Solar Powered,Battery |
| Batteries Required | No |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Manufacturer | FACE HUB 47 FZE |
| Item Weight | 180 g |

## Product Details

- **Brand:** Facehub47
- **Colour:** Black
- **Calculator Type:** Engineering/Scientific
- **Power Source:** Solar Powered,Battery
- **Screen Size:** 3 Inches

## Images

![CTIFREE FC-991EX Scientific Calculator with Advanced 552 Functions- Solar & Battery Powered, Multi-Function, High School & College Math, Trigonometry, Statistics, Algebra, Durable, Large Display - Image 1](https://m.media-amazon.com/images/I/61kFhmKXFaL.jpg)
![CTIFREE FC-991EX Scientific Calculator with Advanced 552 Functions- Solar & Battery Powered, Multi-Function, High School & College Math, Trigonometry, Statistics, Algebra, Durable, Large Display - Image 2](https://m.media-amazon.com/images/I/61FOIhuOxBL.jpg)
![CTIFREE FC-991EX Scientific Calculator with Advanced 552 Functions- Solar & Battery Powered, Multi-Function, High School & College Math, Trigonometry, Statistics, Algebra, Durable, Large Display - Image 3](https://m.media-amazon.com/images/I/615QdfrawuL.jpg)
![CTIFREE FC-991EX Scientific Calculator with Advanced 552 Functions- Solar & Battery Powered, Multi-Function, High School & College Math, Trigonometry, Statistics, Algebra, Durable, Large Display - Image 4](https://m.media-amazon.com/images/I/61J44oAZAVL.jpg)
![CTIFREE FC-991EX Scientific Calculator with Advanced 552 Functions- Solar & Battery Powered, Multi-Function, High School & College Math, Trigonometry, Statistics, Algebra, Durable, Large Display - Image 5](https://m.media-amazon.com/images/I/61zhqwi3urL.jpg)

## Frequently Bought Together

- CTIFREE FC-991EX Scientific Calculator with Advanced 552 Functions- Solar & Battery Powered, Multi-Function, High School & College Math, Trigonometry, Statistics, Algebra, Durable, Large Display
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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-25*