--- product_id: 721321895 title: "Casio FX-991MS 2nd Gen Non-Programmable Scientific Calculator, 401 Functions and 2-line Display" brand: "casio" price: "24 kr" currency: NOK in_stock: false reviews_count: 13 url: https://www.desertcart.no/products/721321895-casio-fx-991ms-2nd-gen-non-programmable-scientific-calculator-401 store_origin: NO region: Norway --- # Water-resistant key printing 401 versatile functions Dual solar & battery power Casio FX-991MS 2nd Gen Non-Programmable Scientific Calculator, 401 Functions and 2-line Display **Brand:** casio **Price:** 24 kr **Availability:** ❌ Out of Stock ## Summary > 📐 Elevate your calculations — the classic powerhouse for every millennial pro! ## Quick Answers - **What is this?** Casio FX-991MS 2nd Gen Non-Programmable Scientific Calculator, 401 Functions and 2-line Display by casio - **How much does it cost?** 24 kr with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/721321895-casio-fx-991ms-2nd-gen-non-programmable-scientific-calculator-401) ## Best For - casio enthusiasts ## Why This Product - Trusted casio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Endure:** Drop-resistant body and water-resistant key printing keep your calculator looking fresh and reliable. - • **Exam-Ready & Trusted:** Non-programmable design ensures acceptance in all major engineering exams like JEE and GATE. - • **Unstoppable Power Duo:** Seamlessly switch between solar and battery power to never miss a calculation moment. - • **Master of 401 Functions:** From integrals to matrices, conquer complex engineering problems with ease and speed. - • **Crystal Clear Dual-Line Display:** Dot-matrix high-resolution screen lets you view and edit long expressions effortlessly. ## Overview The Casio FX-991MS 2nd Gen is a sleek, non-programmable scientific calculator featuring 401 functions, a durable drop-resistant body, and water-resistant key printing. Its dual-line dot-matrix display enhances readability for complex equations, while dual solar and battery power ensure uninterrupted use. Trusted by engineering students and professionals alike, it’s exam-approved and built to last with a 3-year manufacturer warranty. ## Description Casio FX-991MS 2nd Gen Non-Programmable Scientific Calculator, 401 Functions and 2-line Display : desertcart.in: Office Products Review: Reliable scientific calculator - A very useful calculator for students. It has plenty of functions for regular school and competitive-exam calculations. The display is clear, buttons are easy to use, and the calculator feels reliable for everyday study. Review: Solid calculator for students - 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. ## Features - Drop resistant body with water resistant printing on Keys - Multi-replay: Quick and easy recall of previously executed formulas for editing and re-execution - 3 Years All India Manufacturer Warranty - Country of Origin: Thailand ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07TTGZWS1 | | Best Sellers Rank | #2,404 in Office Products ( See Top 100 in Office Products ) #18 in Scientific | | Box Contents | 1 Calculator, 1 User Manual, 1 Warranty Card With Serial Number, 1 Warranty Term Sheet | | Brand | Casio | | Brand Name | Casio | | Calculator Type | Engineering/Scientific | | Colour | Black | | Customer Reviews | 4.4 out of 5 stars 4,971 Reviews | | Display Type | LCD | | EU Spare Part Availability Duration | 3 Years | | Enclosure Material | Plastic | | Importer Contact Information | Casio India Co Pvt Ltd, A-41, 1st Floor, MCIE, Mathura Road, New Delhi-110044 | | Item Dimensions L x W | 161.5L x 77W Centimeters | | Item Type Name | Scientific | | Item Weight Unit of Measure | 95 Grams | | Manufacturer | Casio, Casio India Co Pvt Ltd, A-41, 1st Floor, MCIE, Mathura Road, New Delhi-110044 | | Manufacturer Contact Information | Casio India Co Pvt Ltd, A-41, 1st Floor, MCIE, Mathura Road, New Delhi-110044 | | Manufacturer Part Number | C77 | | Model Name | Scientific | | Model Number | FX-991MS-2 | | Number of Batteries | Nonstandard Battery batteries required. (included) | | Number of Items | 1 | | Number of Packs | 1 | | Packer Contact Information | Casio India Co Pvt Ltd, A-41, 1st Floor, MCIE, Mathura Road, New Delhi-110044 | | Power Source | Battery Powered | | Screen Size | 7 Inches | | Screen Size Unit of Measure | 7 Inches | | Unit Count | 1 Count | | Warranty Description | 6 months additional warranty for products registered online How to avail Warranty? Register your product on https://register.casio.in 3 years all India Manufacturer Warranty from the date of purchase To claim your warranty, produce original bill copy/invoice at authorized Casio service center (Warranty card & stamp is not mandatory for online purchases) For any service related enquiries and feedba… | ## Product Details - **Brand:** Casio - **Calculator Type:** Engineering/Scientific - **Colour:** Black - **Power Source:** Battery Powered - **Screen Size:** 7 Inches ## Images ![Casio FX-991MS 2nd Gen Non-Programmable Scientific Calculator, 401 Functions and 2-line Display - Image 1](https://m.media-amazon.com/images/I/61HXfPgQcqL.jpg) ![Casio FX-991MS 2nd Gen Non-Programmable Scientific Calculator, 401 Functions and 2-line Display - Image 2](https://m.media-amazon.com/images/I/61oVkxpICRL.jpg) ![Casio FX-991MS 2nd Gen Non-Programmable Scientific Calculator, 401 Functions and 2-line Display - Image 3](https://m.media-amazon.com/images/I/61SzlNayopL.jpg) ![Casio FX-991MS 2nd Gen Non-Programmable Scientific Calculator, 401 Functions and 2-line Display - Image 4](https://m.media-amazon.com/images/I/61SGHVDpjvL.jpg) ![Casio FX-991MS 2nd Gen Non-Programmable Scientific Calculator, 401 Functions and 2-line Display - Image 5](https://m.media-amazon.com/images/I/61YcjVy-tGL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: What is difference between fx 991ms and fx 991 es plus?** A: No big difference but whether my knowledge ES is not applicable for all competitive exam . Yes ES has more functions than MS . **Q: This product has stopped functioning in certain calculations can it be repaired** A: Yes , **Q: Along with solar panels, it has battery / cell options** A: S it has both battery and cell **Q: Can i use in civil engineering** A: Of course it can be done on this calculator. But better use FX-991 ES or ES+ for that. Hope you helpful.. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Reliable scientific calculator *by L***N on 24 August 2026* A very useful calculator for students. It has plenty of functions for regular school and competitive-exam calculations. The display is clear, buttons are easy to use, and the calculator feels reliable for everyday study. ### ⭐⭐⭐⭐ Solid calculator for students *by Y***S on 24 July 2025* 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. ### ⭐⭐⭐⭐⭐ Calculator GOAT *by S***T on 19 June 2026* Been using it for almost 3 years, still as good as new. Provides almost all features required for any engineering exam. It has no such programming or very good memory features, so it is allowed for all engineering semester exams. Great product overall. ## Frequently Bought Together - Casio FX-991MS 2nd Gen Non-Programmable Scientific Calculator, 401 Functions and 2-line Display - Casio MJ-12D 150 Steps Check and Correct Desktop Calculator --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.no/products/721321895-casio-fx-991ms-2nd-gen-non-programmable-scientific-calculator-401](https://www.desertcart.no/products/721321895-casio-fx-991ms-2nd-gen-non-programmable-scientific-calculator-401) --- *Product available on Desertcart Norway* *Store origin: NO* *Last updated: 2026-09-16*