




🧮 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 |
| Best Sellers Rank | #505,337 in Office Products ( See Top 100 in Office Products ) #254 in Scientific Calculators |
| Brand | Casio |
| Built-In Media | 1 Calculator, 1 Warranty Card With Serial Number, 1 Warranty Term Sheet, 1 User Manual |
| Calculator Type | Engineering/Scientific |
| Color | AB4827 |
| Customer Reviews | 4.4 out of 5 stars 4,721 Reviews |
| Display Type | LCD |
| Enclosure Material | Plastic |
| Item Dimensions L x W | 6.36"L x 3.03"W |
| Item Type Name | Scientific |
| Item Weight | 95 Grams |
| Manufacturer | Partyreal |
| Model Name | Scientific |
| Number of Batteries | Nonstandard Battery batteries required. (included) |
| Power Source | Solar Powered |
| Screen Size | 7 Inches |
| Unit Count | 1.0 Count |
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...
Trustpilot
1 day ago
2 days ago