---
product_id: 644448999
title: "TOVO Scientific Calculator with Graphic Functions, 360+ Functions Graphing Calculator for Students, Large 3\" Screen Multi-Mode Scientific Calculators for High School & College, TS-259"
brand: "catiga"
price: "$84.13"
currency: USD
in_stock: true
category: "Catiga"
url: https://www.desertcart.us/products/644448999-tovo-scientific-calculator-with-graphic-functions-360-functions-graphing-calculator
store_origin: US
region: United States of America
---

# 32% larger high-res display Dual solar & battery power 552 advanced functions TOVO Scientific Calculator with Graphic Functions, 360+ Functions Graphing Calculator for Students, Large 3" Screen Multi-Mode Scientific Calculators for High School & College, TS-259

**Brand:** catiga
**Price:** $84.13
**Availability:** ✅ In Stock

## Summary

> 🔬 Elevate your math game with precision and speed — don’t get left behind!

## Quick Answers

- **What is this?** TOVO Scientific Calculator with Graphic Functions, 360+ Functions Graphing Calculator for Students, Large 3" Screen Multi-Mode Scientific Calculators for High School & College, TS-259 by catiga
- **How much does it cost?** $84.13 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/644448999-tovo-scientific-calculator-with-graphic-functions-360-functions-graphing-calculator)

## Best For

- catiga enthusiasts

## Why This Product

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

## Key Features

- • **See More, Solve Faster:** Large, crystal-clear screen displays detailed equations and spreadsheets simultaneously.
- • **Textbook-Style Display:** Formulas and expressions appear exactly as in textbooks, boosting accuracy and confidence.
- • **Always On, Always Ready:** Dual solar and battery power ensures zero downtime during critical problem-solving.
- • **Built to Last & Support You:** Durable design backed by a 365-day warranty and responsive 24-hour customer care.
- • **Master Complex Calculations:** 552 functions covering calculus, matrices, stats & more for every STEM challenge.

## Overview

The CATIGA SS-991EX is a high-performance scientific calculator featuring 552 advanced functions including calculus, matrix, and statistical operations. It boasts a 32% larger high-resolution LCD that displays textbook-style formulas for enhanced clarity. Powered by both solar and battery sources, it guarantees uninterrupted use. Designed for durability and backed by a 1-year warranty, it’s ideal for high school, college, and professional STEM users seeking speed, accuracy, and reliability.

## Description

desertcart.com : TOVO Scientific Calculator with Graphic Functions, 360+ Functions Graphing Calculator for Students, Large 3" Screen Multi-Mode Scientific Calculators for High School & College, TS-259 : Office Products

## Features

- PRECISE GRAPHING CONTROL — Featuring the new and improved navigation D-Pad, the TS-259 allows for smoother menu scrolling and more precise graph movement. The modern, ergonomic aesthetic not only looks professional but is also designed for maximum comfort during long study sessions.
- INTRODUCTORY GRAPHING FOR STEM SUCCESS — Perfectly designed as an entry-level graphing calculator for students. It supports essential function plotting and graph analysis, helping students visualize algebra and geometry concepts without the steep learning curve of high-end models. An ideal bridge between a standard scientific calculator and advanced graphing devices.
- 360+ FUNCTIONS & MULTI-MODE VERSATILITY — Equipped with over 360 built-in advanced scientific calculator functions, including fractions, complex numbers, statistics, and equation solving. With multiple calculation modes, it provides the versatility needed to handle high school and college-level math, science, and engineering coursework.
- EXTRA-LARGE 3" SCREEN: 3.25X VISIBILITY — Never strain your eyes again. The TS-259 boasts a huge 3-inch screen, which is 3.25 times larger than regular scientific calculators. This massive viewing area ensures that multi-line formulas and introductory graphs are easily readable, reducing errors during high-pressure timed exams and long study sessions.
- DURABLE PROTECTION & PORTABLE DESIGN — Built with a reinforced anti-drop body and sized at 7 x 3.3 inches for an ergonomic feel. This slim calculator easily slides into any backpack or pocket and includes a rugged, sliding hard cover to protect the oversized screen and tactical buttons from scratches and impacts.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0FHX85H1P |
| Best Sellers Rank | #28,484 in Office Products ( See Top 100 in Office Products ) #36 in Scientific Calculators |
| Brand | CATIGA |
| Calculator Type | Graphing/Scientific |
| Color | Graphite Black |
| Customer Reviews | 4.5 out of 5 stars 564 Reviews |
| Display Type | LCD |
| Enclosure Material | Plastic |
| Manufacturer | CATIGA |
| Material | Plastic |
| Mfr Part Number | TS-259-BK |
| Model Name | TS-259 |
| Number of Items | 1 |
| Screen Size | 3.3 inches |
| UPC | 810185461035 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** CATIGA
- **Calculator Type:** Engineering/Scientific
- **Color:** 991-EX Black
- **Power Source:** Battery Powered
- **Screen Size:** 3 Inches

## Images

![TOVO Scientific Calculator with Graphic Functions, 360+ Functions Graphing Calculator for Students, Large 3" Screen Multi-Mode Scientific Calculators for High School & College, TS-259 - Image 1](https://m.media-amazon.com/images/I/71ZgbV+zKiL.jpg)
![TOVO Scientific Calculator with Graphic Functions, 360+ Functions Graphing Calculator for Students, Large 3" Screen Multi-Mode Scientific Calculators for High School & College, TS-259 - Image 2](https://m.media-amazon.com/images/I/71bFQiwB4rL.jpg)
![TOVO Scientific Calculator with Graphic Functions, 360+ Functions Graphing Calculator for Students, Large 3" Screen Multi-Mode Scientific Calculators for High School & College, TS-259 - Image 3](https://m.media-amazon.com/images/I/71xgl8mluDL.jpg)
![TOVO Scientific Calculator with Graphic Functions, 360+ Functions Graphing Calculator for Students, Large 3" Screen Multi-Mode Scientific Calculators for High School & College, TS-259 - Image 4](https://m.media-amazon.com/images/I/71L7hbCLAuL.jpg)
![TOVO Scientific Calculator with Graphic Functions, 360+ Functions Graphing Calculator for Students, Large 3" Screen Multi-Mode Scientific Calculators for High School & College, TS-259 - Image 5](https://m.media-amazon.com/images/I/71Rj5Z6wakL.jpg)

## Available Options

This product comes in different **Color** options.

## Frequently Bought Together

- CATIGA SS-991EX Scientific Calculator with Advanced 550 Functions- Solar & Battery Powered, Multi-Function, High School & College Math, Trigonometry, Statistics, Algebra, Durable, Large Display
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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-10-23*