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Texas Instruments TI-89 Titanium Advanced Graphing Calculator

Dose's Shops
(324)
PrivateRegistered as a private seller
Consumer protection regulations resulting from EU consumer law are therefore not applicable. eBay buyer protection still applies to most purchases.
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US $44.99
Approximately£34.05
Condition:
Used
Out of stock2 sold
Postage:
US $9.06 (approx £6.86) USPS Ground Advantage®.
Located in: Fort Washington, Maryland, United States
Delivery:
Estimated between Sat, 6 Dec and Fri, 12 Dec to 94104
Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the delivery service selected, the seller's delivery history and other factors. Delivery times may vary, especially during peak periods.
Returns:
30 days return. Buyer pays for return postage. If you use an eBay delivery label, it will be deducted from your refund amount.
Payments:
    Diners Club

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eBay item number:157225306664
Last updated on 11 Sep, 2025 00:28:29 BSTView all revisionsView all revisions

Item specifics

Condition
Used: An item that has been previously used. 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
Model
Texas Instruments TI-89
Features
Backlight, Calculus, Clock, LCD Display, Programmable, USB
MPN
TI-89
UPC
Does not apply
Category

Item description from the seller

About this seller

Dose's Shops

98.8% positive Feedback•814 items sold

Joined Oct 2015
Registered as a private sellerThereby, consumer rights stemming from EU consumer protection law do not apply. eBay buyer protection still applies to most purchases.
Visit shopContact

Detailed seller ratings

Average for the last 12 months
Accurate description
4.8
Reasonable postage cost
4.7
Delivery time
5.0
Communication
5.0

Seller Feedback (324)

All ratingsselected
Positive
Neutral
Negative
  • y***w (1694)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    I just received my TI-89 Titanium and couldn't be happier with this purchase! The calculator arrived quickly in excellent condition and was packaged with care. The condition matches the seller's description perfectly—the screen is crystal clear, all buttons are responsive, and the overall build quality is exactly what you'd expect from Texas Instruments. I highly recommend both this calculator and this seller!
  • h***t (26596)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Speedy Shipment! Thanks!
See all Feedback

Product ratings and reviews

Learn more
4.4
5 product ratings
  • 2 users rated this 5 out of 5 stars
  • 3 users rated this 4 out of 5 stars
  • 0 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Good value

Would recommend

Good quality

Most relevant reviews

See all 5 reviews
  • by vonmaverick72
    15 May, 2024

    Some keys are hard, but it still works well.

    Some keys are hard, but it still works well.

    Verified purchase: YesCondition: Pre-ownedSold by: dryrotvintage

  • by grstein_23
    23 Apr, 2025

    This calculator adds up for value!

    For the price, this was a good value. Some of the buttons are sticky but still registers the buttons

    Verified purchase: YesCondition: Pre-ownedSold by: the_cardboard_king

  • by fkvqs-73
    27 Sep, 2023

    Would buy again

    Works 99% well, few damaged pixels but no complaints for the price. Would buy again.

    Verified purchase: YesCondition: Pre-ownedSold by: fullerfarm1977

  • by jrod1602
    24 Sep, 2025

    Great quality item. Thanks again!...

    Great quality item. Thanks again!

    Verified purchase: YesCondition: Pre-ownedSold by: brianmutchler

  • by rarevaluable
    24 Apr, 2024

    thanks

    thanks

    Verified purchase: YesCondition: Pre-ownedSold by: ucfkid84

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