A good quality TI-92 CAS calculator. Fully working screen. No sign of battery leakage. All buttons work. Fully CAS system for algebraic work and calculus. If you're looking for one of these, you know what it can do.
eBay
Item is in good condition and working.
eBay
The display has a permanent bluish mark to the LCD panel (see photos). No further testing has been done. The item is listed as faulty and sold for spares or repair. Would make a good spare parts donor or it might be fixable if you have the necessary parts and skills.
eBay
Featuring a large high-contrast LCD screen, a full QWERTY keyboard, and advanced symbolic computation capabilities, it was designed for serious mathematics, including algebra, calculus, and graphing.
eBay
eBay
TI-92 Plus Graphing Calculator Program Scientific Calculator
eBay
eBay
This item is a back cover and case for the Texas Instruments TI-92 Plus Graphing Calculator. It is designed to fit the handheld calculator perfectly and is made of high-quality materials to protect it from scratches and damage. The case is ideal for use at school, home, or in the office. The Texas Instruments brand is known for its quality products, and this case is no exception. It is specifically designed for the TI-92 Plus model and is a must-have accessory for anyone who wants to keep their calculator safe and secure. Whether you're a student, teacher, or business professional, this case is perfect for you.
eBay