Casio FX-991DE CW

Solar cells, Batteries
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Product details

With 696 functions, the FX-991DE CW calculator is the most powerful model among technical and scientific calculators. The innovative operation and menu navigation simplify the use of the calculator for students. Abbreviations and shortcuts are largely avoided. Mathematical expressions such as roots, fractions, and logarithms are displayed in natural notation.

Key specifications

Calculator type
Scientific calculator
Functionalities
Automatic switch-off, Financial / economic functions, Rounding function, Scientific functions
Item number
25050201

General information

Manufacturer
Casio
Category
Pocket calculators
Manufacturer no.
FX-991DE CW
Release date
25.8.2023
Sales rank in Category Pocket calculators
45 of 738
External links
Manufacturer's site (de)

Colour

Colour
Black
Exact colour description
Black

Material

Material group
Plastic
Material
Plastic

Calculator properties

Calculator type
Scientific calculator
Functionalities
Automatic switch-off, Financial / economic functions, Rounding function, Scientific functions
Number of functions
696 x
Equipment
Protective film
Language
German

Display properties

Number of digits
12 x
Number of lines
4 x

Power supply

Power supply
Batteries, Solar cells
Battery size
LR44

Origin

Country of origin
China

Sustainability

Manufacturer commitment
RE100, SBTi

Voluntary climate contribution

Manufacturer compensation
According to RE100, the manufacturer Casio fully compensates for its energy consumption, leading to a reduction in emissions.
CO₂-Emission
Climate contribution

Scope of delivery

Scope of delivery
Case, Casio FX-991DE CW Technical scientific calculator

Product dimensions

Length
16.20 cm
Width
7.70 cm
Height
1.10 cm
Weight
95 g

Package dimensions

Length
21 cm
Width
8.50 cm
Height
2.50 cm
Weight
150 g

30-day right of return
24 Months Warranty (Bring-in)
17 additional offers

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Pocket calculators» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 3.Genie
    0.2 %
  • 3.Ibico
    0.2 %
  • 6.Casio
    0.3 %
  • 7.TI
    0.4 %
  • 8.Sharp
    0.8 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • 1.Canon
    0 days
  • 1.Casio
    0 days
  • 3.HP
    1 day
  • 4.TI
    4 days

Return rate

How often is a product of this brand in the «Pocket calculators» category returned?

Source: Digitec Galaxus
  • 5.Canon
    1 %
  • 6.HP
    1.4 %
  • 6.TI
    1.4 %
  • 8.Sharp
    2.5 %
  • 9.Casio
    4.2 %
Source: Digitec Galaxus