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Casio Fx-991ex Classwiz Advanced Engineering Scientific Calculator-552 Function

amrs47
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£23.46
(£23.46 / Unit)
or Best Offer
Condition:
New
Postage:
May not post to United States. Read item description or contact seller for postage options.
Located in: Horley, United Kingdom
Delivery:
Varies
Returns:
No returns accepted.
Payments:
    Diners Club

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eBay item number:197572695009
Last updated on 01 Aug, 2025 20:22:39 BSTView all revisionsView all revisions

Item specifics

Condition
New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging ...
EAN
4549526603327
Brand
Casio
Key Size
Regular
Type
Scientific
Display Size
Regular
Power Source
Solar, Battery
Size
Handheld
Model
Casio fx-991EX
MPN
FX-991EX
Features
LCD Display, Backlight, Calculus

About this product

Product Identifiers

Brand
Casio
MPN
FX-991EX
EAN
4971850092315, 4549526603327
UPC
4971850092315, 4549526603327
Model
Casio fx-991EX
eBay Product ID (ePID)
13031982778

Product Key Features

Power Source
Solar, Battery
Size
Handheld
Key Size
Regular
Display Size
Regular
Features
LCD Display, Backlight, Calculus
Type
Scientific

Dimensions

Weight
198g

Additional Product Features

Colour
Black

Item description from the seller

About this seller

amrs47

100% positive Feedback

Joined May 2025
Registered as a private sellerThereby, consumer rights stemming from EU consumer protection law do not apply. eBay buyer protection still applies to most purchases.
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Product ratings and reviews

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4.8
492 product ratings
  • 434 users rated this 5 out of 5 stars
  • 35 users rated this 4 out of 5 stars
  • 6 users rated this 3 out of 5 stars
  • 4 users rated this 2 out of 5 stars
  • 13 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

See all 377 reviews
  • by isabelmay77
    13 Sep, 2022Most favourable review

    The Ultimate Compromise

    It trumps everything on the market in the value-for-money stakes, offering a viable alternative to expensive, graphical-plot calculators, at an unbelievably low price. What Casio did was incredible: they addressed the needs of those wanting a much more expensive, high-end, graphical-plot calculator, like the fx-cg50, but couldn't afford one. What you get here is all the features you'd look for in a more expensive calculator allowed for GCE use, but in a much slimmer body, less than half the price, and with a few extra facilities high-end models don't offer. As an example, it can solve polynomial inequalities, giving you the answer as it should be written down (even the fx-cg50 can't do this). Apart form it's ability to solve single-variable equations, as presented with no rearrangement, ...

    Verified purchase: YesCondition: NewSold by: smot1993-8

  • by forcefield_1
    09 Feb, 2024Most critical review

    Great Calculator, Keys a bit iffy, double check that the intended digits are up on the screen!

    The calculator is very powerful and has more functions than most engineers etc will need. It is well priced and offers good value. However wher it falls down in my view is that if you are used to inputting data fairly swiftly, the keys very frequently dot not register and so errant results occur. I have found I have had to slow down considerably, press the keys very firmly and look at the screen on every push to confirm that the value has been registered correctly. This never seemed to be an issue going back say as much as 20 years. the buttons only had to be brushed upoin and the correct value was there on the screen in front of you. HAS QUALITY CONTROL AND/OR MASS MANUFACTURING METHODS TAKEN A BACKWARD STEP?

    Verified purchase: YesCondition: NewSold by: quickdirectstoreltd

  • by sw_numberstation08
    21 Aug, 2019

    If you´re not a real genius, I doubt that you´ll use all those functions. A full calculator!

    One of the most complete calculators nowadays. It´s light and powerful. It has tons of functions. The screen is large enough to show complete formulas, real nice. The screen has a very good contrast ratio and it´s easy to see. The menu has too many functions that you have to study it first. The manual is very unpleasant to read, a small piece of paper with small letters. The QR Code function is very interesting, it can transform your calculations into complete graphical representations so you can paste on a word processor and save time. The metal buttons give it an elegant visual to the calculator. The keys are soft and steady and the division of colors make it nice to get used to it. The front cover is white and can fit right in the back when you´re using it. Since it´s made of thin ...

    Verified purchase: YesCondition: NewSold by: krazydeals2010

  • by carlylongbelly
    26 Feb, 2023

    Casio FX-991EX Review

    First of all if you have anyone who is and/or just started secondary school I would seriously encourage anyone to purchase this calculator. Although it say's GCSE or A Level for a scientific calculator this is standard and recognized for all secondary school maths and further education. You won't need to purchase the more expensive graphics calculator as this one has so many features it's a lot more cheaper and offers best value for money amongst all the other models and other makes. WORD OF WARNING... Beware of counterfeit models which look exactly the same as the original in fact you cannot tell the difference part from the following. 1. If you place your hand over the solar panel window you should see in icon which looks like a sun disappear and/or the display dim slightly. 2. This ...

    Verified purchase: YesCondition: NewSold by: 2014golding1

  • by arfarc
    06 Nov, 2019

    Wonderful calculator type in fractions and formulae as in text books

    Wonderful calculator easy to use and type in fractions and formulae as found in text books. Very useful for my kids going to secondary school and beyond. Be aware though there are many imitations on ebay that dont have same functions but image looks the same. Usually missing casio logo and sold as unbranded by some ebayers. But may arrive as citiiizen branded a cheap copy.

    Verified purchase: YesCondition: NewSold by: varni-thebrand

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