401 Functions 2-Line Display Desktop Scientific Calculator Fx-991ms with Sliding Cover

• Customization: Available
• Material: Plastic
• Usage: Promotional Calculators, Desktop Calculators, Pocket Calculator, Scientific Calculator, Check & Correct Calculator, Finance Calculator
• Model NO.: CA3001
• Max. Digits: 12
• Power Source: Battery and Solar
• Certification: ISO9001
• Type: Solar/Dual-power Calculators
• Waterproof: Waterproof
• Style: Business
• Size: Middle
• Logo Printing: With Logo Printing
• Calculator Type: Engineering/Scientific
• Power Supply: Battery Powered
• Sizes: 156*77*18mm
• Modle: Fx-991ms
• Digits: 10 + 2 Digits
• Display: 2-Line Display
• Function: 401 Functions
• Use: Pocket Calculator
• Materials: Sturdy ABS Plastic
• Packaging: 1 Piece/ Color Box
• Carton Quantity: 40 Pieces/ Carton
• MOQ: 1 Carton
• Sample: Available
• OEM: Welcomed
• Delivery Time: 3-15 Working Days
• Transport Package: 1PC/Color Box Packing
• Specification: 156*77*18mm
• Trademark: Foska
• Origin: Anhui, China
• HS Code: 84701000
• Production Capacity: 50000piecs/Month
• Package Size: 49.80cm * 36.20cm * 21.40cm
• Package Gross Weight: 9.900kg

Product Description

Foska 2-Line Display Desktop Calculator for College School Student

Update: 2026-08-14

Product Details

FX-991MS Scientific Calculator

 401 Functions Scientific 

 Calculator 

1. Basic Calculations

2. Memory Calculations(answer/continuous/
independent/variable/formula storage and repeated calculations)

3. Scientific Function Calculations (sin, cos, tan & inverse /cot, sec /hyperbolic & inverse / Log to base /√, x√, 3√, x², x³, x(-1),X!, Angle unit conversion /Coordinate conversion/random number)

4.Statistical Calculation (standard deviation/regression calculation/linear regression).

 Extra large display 

 Dual power supply 

12-digit LCD large display. The 2-line display shows the input and results at the same time. Work efficiently and error-free.

Solar and battery, long service life, very small touch with the outside world, no need to replace it for a long time.

 Ergonomically touch keys 

 With protective case 

The buttons are ergonomically shaped and confígured to match natural finger movement plastic soft and durable.

A sturdy sliding protective case covers both sides of the calculator. Protect buttons and device body. Easy to carry.

Ultra-light & Portable

Package Content	1xCalculator; 1x User's Manual;
Size	156 x 77 x 18mm	Weight	141g
Material	Durable ABS	Color	Black
Packing	1 PCS / Box	Carton	40 PCS / Carton

 FOSKA Calculators for Choice 

Why Choose Us

                                                100000 CTNS Annual Production                                                 

Big Variety - 4000 Items

Good Quality -All Passed ISO9001/CE/EN71

Small Order Quantity - 1 Carton Sale

Fast Delivery - 3 Days

About Us

Anhui Sunshine Stationery Co, Ltd.

Founded in 1994, Foska was mainly engage in stationery products, including writing tools, student stationery, office stationery and early education supplies series and so on.

 
After 32+ years of development, Foska has grown into China's most popular stationery manufacturer, which is integrating research and development, production, sales and after-sales services.

FAQ

1.How about your quality?
Foska only handles good quality products. We have strict inspection before loading. We hold ISO9001 certification, along with CE, EN-71, and SGS certificates for many of our products.

2.What's your MOQ?
Our MOQ for each item is only one carton. You can combine assorted items with small quantity in one order.

3.How long is your delivery time?
We have stock.Our delivery time is only 3-7 days for stock items.

4.What's your main products?
We have more than 4000 items in our catalogue.And more than 1500 items,we have stock.Our products almost have covered the whole stationery line.

5.How can we get your catalogue and price?
You can contact us by website,e-mail,what's app or wechat.Then we will send you our latest hot sale list with price and pictures.

6.How to start an initial order with Foska products?
Foska has many items, you can select the item no. with quantity which you are interested in, then we will provide proforma invoice accordingly.

One-Stop Service

1. Provide free samples, but charge a shipping fee

2. We have full stock, and can deliver within short time. Many styles for your choices.

3. OEM and ODM order are accepted.

4. Good Quality + Factory Price + Quick Response + Reliable Service, is what we are trying best to offer you

5.All of our products are produce by our professional workman and we have our high-work-effect foreign trade team, you can totally believe our service.