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
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Availability:
Only 10 left in stock, order soon!
Arrives
Monday, Jun 22
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Color: Graphite Black
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.
Brand: CATIGA
Color: Graphite Black
Calculator Type: Graphing/Scientific
Power Source: Solar Powered, Battery Powered
Screen Size: 3.3 Inches
Calculator Type: Graphing/Scientific
Power Source: Solar Powered, Battery Powered
Screen Size: 3.3 Inches
Display Type: LCD
Color: Graphite Black
Enclosure Material: Plastic
Brand: CATIGA
Model Name: TS-259
UPC: 810185461035
Manufacturer: CATIGA
Mfr Part Number: TS-259-BK
Unit Count: 1.0 Count
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If you place your order now, the estimated arrival date for this product is:
Monday, Jun 22
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Color: 991-EX Black
I was interested to see a new entry in the solar-powered scientific calculator product lineup, and one that actually brings back the possibility of functionality similar to the casio fx-991EX. There are basically three main calculators that are of roughly the same price that are solar-powered scientific calculators, with this CATIGA SS-991EX forming a strong fourth. They are now this CATIGA SS-991EX [hencefore catigaEX] casio fx-991CW, the Sharp EL-W516T, and the TI-36X Pro. The fx-991CW [henceforth casioCW] is basically a user interface change from the casio fx-991EX [henceforth casioEX]. The catigaEX is as close to a clone of the casioEX as one can get. There is a bit of a different color scheme for the buttons and case, but otherwise the layout is exactly the same. The menu system and capabilities also seem to be exactly the same as the casioEX. This is great news, in my opinion, for my tests show that the catigaEX is as fast as the casioEX, if not sometimes faster. I was not a fan of the new button layout and new menu system on the casioCW, and so the catigaEX is superior to it in my opinion, and I would actually give this as my first recommendation for a calculator in this price range and style now. All of the calculators I mentioned are going to work well for anything that does not require a graphing calculator, but the catigaEX has the fastest processor [the casioCW and casioEX have similar speed and the casioCW has a slightly better resolution screen, but hardly a dealbreaker]. A definite integral on the catigaEX is often instant and is at least 5x faster than the same calculation on the TI or Sharp calculators, about the same as the casio's. The catigaEX calculator also keeps square roots of values more consistently, allowing you to get exact answers. The catigaEX has all of the features that you'd expect from a scientific calculator except a GCD and LCM calculator. This is not a big deal to me, because the catigaEX does prime factorization which allows you to get these quite easily, but it is annoying that they didn't implement them nevertheless. ] The catigaEX does clear the memory of recent calculations whenever you switch modes or the calculator turns off [the same as in the casioEX or casioCW], which I find annoying. This means that if you wanted to keep a value for the next time you turn it on, it simply isn't possible. Again, the same as the casioEX or casioCW, the answer button is programmed to only keep the last value in the stack. (So if you did 2+1=3, and then put in 2+2=4, then went back to see 2+1=3, and typed +2 (Ans would be inserted for you) you would find 6, not 5.) So if you would like to use a previous result you have to scroll to it and enter it again or edit the equation from there. A huge improvement over the casioCW is that the catigaEX uses a power of 10 button correctly. The casioCW has reprogrammed the power of 10 button (commonly e or E button) such that it does not take operator precedence on the number preceding it. The catigaEX does the correct thing if you type 10/2E-5 by giving 5E5 (The casioCW would give 5e-5 which is why I do not recommend the casioCW given your other options.) I like the color scheme of the catiga better overall, though I miss the silver buttons from the casioEX. The build quality is very similar to the casioEX. It is a lightweight plastic calculator, but I find the button presses work well and I haven't found any problems with the ergonomics. The button layout works quite well and I find to be very easy to get used to. The TI36X pro still wins if you want memory, but it uses an old processor and is not the fastest for integration, if you care about that. Overall, any of the calculators will work, but the catigaEX is the among the fastest with the only other option still begin produced being the casioCW, which also has the best looking screen. I prefer the catigaEX over the casioCW, but either is faster than the TI36X Pro or Sharp EL-2516T. If you have a casioEX, then you may want to get a catigaEX as a backup since casio discontinued the casioEX. I'd say stick with casioEX or get a catigaEX over a casioCW, as either EX has all the same functionality (with the bonus of implementing the power of 10 button correctly). The catigaEX is my first recommendation for a solar-powered scientific calculator when you do not need graphing now.
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Reviewed in the United States on November 2, 2025 by Kyle B.
Great for School, display is clear, Product is as described in size and ease of use.
Reviewed in the United States on May 23, 2026 by Lisa Carlson
Love this calculator. It's not solar powered though. But great functionality except I wish the screen lit up. It's accurate. Lightweight.
Reviewed in the United States on February 15, 2026 by Andrea
Color: Graphite Black
Easy to figure out, got me through my first year of college so far
Reviewed in the United States on May 14, 2026 by Allison
Color: 991-EX Black
Still learning this impressive little calculator, and liking it so far. One thing I did notice though is that many of the physical constants stored in the calculator are out-of-date values. Close enough for the vast majority of needs but not up to date with the latest recommendations.
Reviewed in the United States on October 18, 2025 by Timbalionguy
Color: 991-EX Black
This is an excellent scientific calculator. It can perform many of the popular calculations that the TI-83/84 graphing calculator can perform for a fraction of the price. However, you cannot graph equations. I chose to use this calculator for my college algebra, mainly because of its cost and capabilities.
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Reviewed in the United States on September 23, 2025 by Patrick Thompson
The overall quality is ok. Cover - The calculator cover doesn’t fit. It’s too big. It falls off which renders it useless. Can’t protect the calculator while in bag. Buttons - The buttons are loose and rattle which give it a cheap feel. Display - the display is ok. Directions - the directions towards how to use functions are quick, hasty, and require a lot of trial and error. Price - Great but it gets you marginal quality. Overall - it gets the job done.
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Reviewed in the United States on July 8, 2024 by Michael Kilinski
Color: 991-EX Black
Excellent and looks sharp too
Reviewed in the United States on March 12, 2026 by Jazz