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Texas Instruments TI-81 Graphing Calculator with Cover - Working

Page_by_Page77
(56)
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US $14.99
ApproximatelyAU $22.75
or Best Offer
Was US $19.99 What does this price mean?
The seller’s previous price is required to be the previous selling price or recommended retail price (RRP) at which it was offered and/or sold for a reasonable period of time immediately prior to the discount.
Save US $5.00 (25% off)
Condition:
Used
More information - About this item condition
“Calculator is used, one owner. Still works. No Manual”
Sale ends in: 2d 18h
Postage:
Free Standard Shipping.
Located in: Denville, New Jersey, United States
Delivery:
Estimated between Tue, 29 Jul and Sat, 2 Aug to 94104
Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the postage service selected, the seller's postage history, and other factors. Delivery times may vary, especially during peak periods.
Returns:
No returns accepted.
Payments:
     Diners Club

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eBay item number:305588893314
Last updated on 19 Jul, 2025 01:46:44 AESTView all revisionsView all revisions

Item specifics

Condition
Used
Seller notes
“Calculator is used, one owner. Still works. No Manual”
Brand
Texas Instruments
Type
Graphing
Power Source
Battery
Model
TI-81
MPN
TI-81
UPC
Does not apply

Item description from the seller

About this seller

Page_by_Page77

100% positive Feedback•145 items sold

Joined Sep 2022
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Detailed seller ratings

Average for the last 12 months
Accurate description
5.0
Reasonable postage costs
5.0
Postage speed
5.0
Communication
5.0

Seller feedback (48)

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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
    29 Oct, 2022Top favourable 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
    22 Sep, 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
    27 May, 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
    04 Nov, 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
    16 Oct, 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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