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🧮 Elevate your calculations—because precision is the new power move!
The CasioFX-991MS 2nd Gen is a non-programmable scientific calculator featuring 401 functions and a 2-line S-V.P.A.M. display. Its compact, curved-edge design enhances portability, while color-coded keys and multi-replay functionality streamline complex calculations. Built tough with drop resistance and water-resistant keys, it comes with a slide-on hard case and a 3-year warranty, making it the ideal tool for professionals and students seeking reliable, advanced math capabilities.
| ASIN | B07TTGZWS1 |
| Batteries | Nonstandard Battery batteries required. (included) |
| Best Sellers Rank | #496,178 in Office Products ( See Top 100 in Office Products ) #253 in Scientific Calculators |
| Customer Reviews | 4.4 4.4 out of 5 stars (4,724) |
| Date First Available | December 2, 2022 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 3.35 ounces |
| Item model number | FX-991MS-2 |
| Language | English |
| Manufacturer | Partyreal |
| Product Dimensions | 6.38 x 3.03 x 0.43 inches |
A**S
It does the job.
It was perfect for my daughter at college. She needed a non-programmable scientific calculator for her chemistry, and this fit the bill.
F**S
Great just for the Greek prefixes!
Have been hooked on calculators with Greek prefixes since I got the first one with that feature back in the Radio Shack days--probably a rebranded Casio. Saves tons of key presses and mistakes in electrical engineering calculations. This is a good replacement for the fx-115MS, however the construction feels pretty light and cheap compared to the older ones...
A**E
Er funktioniert einwandfrei, und wenn jemand das zweizeilige Display im klassischen Stil schätzt ist dieser Rechner eine gute Wahl. Man merkt aber schon anhand des Funktionsumfangs dass er schon in die Jahre gekommen ist und definitiv ein Design der 90er ist. Da ich aber Rechner sammle bin ich froh einen neuen abgestaubt zu haben.
C**E
Nice and new
T**I
It's very useful for engineering students. Various type of critical problem solved by use of this ,trigonometry function, exponential function etc. It is value for money, accuracy is more, easy to use, battery life is better , better button quality.
L**A
Good tools for college student
Y**S
Solid calculator for students — does the job without drama As an engineering student, the Casio fx-991MS has been a lifesaver for me. It covers all the essential functions — complex numbers, matrices, integration, stats, etc. — without going overboard. The button feedback is decent, the display is clear (dual-line is a plus), and it runs on both solar + battery, so you never get stuck during an exam. It's not flashy like the fx-991EX, but it’s reliable and familiar. And honestly, sometimes that’s all you need. It’s accepted in most Indian exams (JEE, GATE, etc.), which is a big win. Only downside? No high-resolution display and feels a bit "2000s retro" — but that’s part of the charm. TL;DR: Great value, trusted brand, exam-ready — go for it if you don’t need the fancy features of the newer models.
Trustpilot
Hace 2 meses
Hace 2 meses