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Texas Instruments TI-81 Graphing Calculator Tested Working No Cover

Estore999
(681)
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US $8.95
or Best Offer
Condition:
Used

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Located in: Beaverton, Oregon, United States
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Estimated between Wed, Jun 18 and Tue, Jun 24 to 94104
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eBay item number:176874769093
Last updated on Jun 08, 2025 21:48:56 PDTView all revisionsView all revisions

Item specifics

Condition
Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is ...
Key Size
Regular
Brand
Texas Instruments
Type
Graphing
Display Size
Regular
Power Source
Battery
Size
Handheld
Custom Bundle
No
Model
TI-81
MPN
TI-81
Features
LCD Display
Country/Region of Manufacture
Unknown
Modified Item
No
UPC
Does not apply

Item description from the seller

About this seller

Estore999

98% positive feedback•1.3K items sold

Joined Oct 2005
Usually responds within 24 hours
Hi there, At Estore999, we want to thank you for your interest in our eBay store. We offer a wide variety of pre-owned and new items, all of which are thoroughly tested and inspected before being ...
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Detailed seller ratings

Average for the last 12 months
Accurate description
4.9
Reasonable shipping cost
4.9
Shipping speed
5.0
Communication
5.0

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Product ratings and reviews

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4.6
40 product ratings
  • 31 users rated this 5 out of 5 stars
  • 4 users rated this 4 out of 5 stars
  • 3 users rated this 3 out of 5 stars
  • 1 users rated this 2 out of 5 stars
  • 1 users rated this 1 out of 5 stars

Good value

Would recommend

Good quality

Most relevant reviews

See all 34 reviews
  • by walguzm
    Oct 28, 2022Top favorable review

    Nice size with clear view of the screen

    Great calculator to use for basic and Intro to Algebra. Easy to use also has a clear screen to see well. The size just right to handle!

    Verified purchase: YesCondition: Pre-OwnedSold by: b.g.clummox

  • by chakita1025
    Sep 21, 2016Top critical review

    Not terrible and does work and really cheap

    I like this calculator and the price and all, but sometimes the thing won't turn on even with the batteries in there. I've been thinking something's wrong with it but it takes too long for it to come back on and also the screen can be very hard to see sometimes, you have to constantly keep changing display in order to meet the room your in

    Verified purchase: YesCondition: Pre-OwnedSold by: mmpire2016

  • by joeythe79
    May 26, 2020

    Speecheless quality for the price

    The calculator has almost no scratches, the screen displays all pixels, comes with everything, no engravings, and no wear on the buttons, all for $6. I could not recommend this anymore.

    Verified purchase: YesCondition: Pre-OwnedSold by: anewbeginnings13

  • by bigkahuna132
    Nov 03, 2020

    The 81, the most straight forward grapher

    The 81 is great for your student who is getting their first graphing calc. It is also good for more advanced functions as well. It is simple to use, more straight forward than any other I have used. As I mentioned, it will get you through your trig and basic calculus. There are other more advanced models if you are going further into the sciences - though this one will work - if you take it that far with the 81, it surely will - because you can make it work. If you want the expanded stats/chemistry/etc functions - you will need a little higher model, though if you know your way around the 81, you should be ok.

    Verified purchase: YesCondition: Pre-OwnedSold by: trading.post.23

  • by gtce5851
    Oct 15, 2022

    works as advertised

    The calculator works, the keypad and display are in good condition. Though in my opinion the TI-81 itself (feature wise) is kind of mid.

    Verified purchase: YesCondition: Pre-OwnedSold by: cyberquipment

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