Back to home page
|Listed in category:
The seller is away until 18 Jun, 2025. If you buy this item, expect a delay in delivery.

Picture 1 of 3

Picture 1 of 3
Picture 2 of 3
Picture 3 of 3
Have one to sell?
Sell it yourself

Texas Instruments TI-81 Graphing Calculator Tested Working No Cover

Estore999
(681)
Seller's other items
Contact seller
US $8.95
ApproximatelyAU $13.77
or Best Offer
Condition:
Used
More information - About this item condition
Breathe easy. Free returns.
Collection:
Postage:
US $6.95 (approx. AU $10.69) USPS Ground Advantage®.
Located in: Beaverton, Oregon, United States
Delivery:
Estimated between Fri, 20 Jun and Tue, 24 Jun 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:
30-day returns. Seller pays for return postage.
Payments:
     Diners Club

Shop with confidence

eBay Money Back Guarantee
Get the item you ordered or your money back. Learn moreeBay Money Back Guarantee - opens new window or tab
Report this item - opens in new window or tab
Seller assumes all responsibility for this listing.
eBay item number:176874769093
Last updated on 09 Jun, 2025 14:48:56 AESTView all revisionsView all revisions

Item specifics

Condition
Used
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 ...
See more
Visit storeContact

Detailed seller ratings

Average for the last 12 months
Accurate description
4.9
Reasonable postage costs
4.9
Postage speed
5.0
Communication
5.0

Seller feedback (394)

All ratings
Positive
Neutral
Negative
  • r***p (186)- Feedback left by buyer.
    Past month
    Verified purchase
    The doll was shipped immediately. She was well packaged and as described. She was a great value. The same doll was priced higher with missing clothing. This seller is highly recommended.
    Daddy's Long Legs Doll, Babe Bouchard 1920's Jazz Singer, 1991 Stamp (#176874768303)
  • p***p (21)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    fast to ship, packing was tight and secure. pictures were slightly misleading but ultimately i should’ve looked wit greater intent. overall good experience and happy to make business
    Canon Speedlite 155A SLR Camera Shoe Mount Flash Black On/Off Switch Japan Works (#176889983488)
  • j***m (2052)- Feedback left by buyer.
    Past month
    Verified purchase
    Excellent transaction good communication, prompt shipping, highly recommended AAAAAAAAAAAAAA++++++++++++++
    Insignia NS-RC4NA-18 Remote Control -Tested (#176874772209)
See all feedback

Product ratings and reviews

Learn more
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

More to explore: