TI-89 Titanium CAS Graphing Calculator Texas Instruments by Texas Instruments - Used condition

TI-89 Titanium CAS Graphing Calculator Texas Instruments — Open-Box, 76% Off

Name: TI-89 Titanium CAS Graphing Calculator Texas Instruments
Brand: Texas Instruments
SKU: awhd-us-b0001emlz2
Price: 54.88 USD
Availability: InStock

Brand: Texas Instruments

Condition: Used - Good

$54⁸⁸

$229⁹⁹

-76% Save $175¹¹

Updated: Yesterday

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Description

Graphing calculator handles calculus, algebra, matrices, and statistical functions

188 KB RAM and 2.7 MB flash memory for speed; plenty of storage for functions, programs, data

Large 100 x 160 pixel display for split-screen views. Compatible with CBL 2 system, CBR 2 motion sensor, vernier easylink and vernier easytemp systems to allow collection and analysis of real-world data

USB on-the-go technology for file sharing with other calculators and connecting with PCs. Matrix operations including inverse, determinant, transpose, augment, elementary row operations and reduced row echelon form; matrix elements can be real or complex and numeric or symbolic

Backed by 1-year warranty

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Product Details

SKU:: awhd-us-b0001emlz2
Model:: 89T/TBL/1L1/D
Country:: US
ASIN:: B0001EMLZ2
GTIN:: 00033317192038
UPC:: 778888086002

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Common questions about buying open-box and refurbished.

Why buy refurbished or open-box?

Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $175 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.

What's the difference between open-box and refurbished?

Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.

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Yes. Products listed on OpenBoxFox come from established retailers like Amazon, Reebelo, and Dyson — not unknown third-party sellers. Each retailer has buyer protection policies, return windows, and in some cases warranties. You get the price advantage of used goods with the purchase security of a known retailer.