Description
Reviews
| Brand | - |
| Category | Stationery, Educational Electronics & Office Supplies / Calculators |
| Origin | - |
| Brand | Deli |
| Model Number | DL-82ES Plus Gradient |
| Number of Functions | 240 |
| Display Type | Large 2-Line LCD |
| Power Source | Solar + Battery (LR44) |
| Design Style | High-Aesthetic Gradient Finish |
| Exam Approval | Suitable for College Entrance & Certification Exams |
| Key Material | Responsive Plastic with Anti-slip Texture |
| Dimensions | 16.5 x 8.2 x 1.4 cm |
| Weight | 110 grams |
Anonymous
Mar 30, 2026
Rating: 5/5
Approved for college entrance tests
Checked with my proctor, and this model is fully compliant. The battery life is excellent, and the screen contrast is perfect even in dim lighting.
Anonymous
Mar 28, 2026
Rating: 4/5
Solid choice for postgrad studies
Handles matrix operations and calculus derivatives without lag. The gradient finish does show fingerprints slightly, but it wipes off easily.
Anonymous
Mar 24, 2026
Rating: 5/5
Perfect for my engineering exams
The gradient color looks amazing and professional. All 240 functions work smoothly, and the large display makes reading complex equations easy during long study sessions.
Anonymous
Mar 18, 2026
Rating: 5/5
Best calculator I've owned
Upgraded from an older model and the difference is night and day. The button layout is intuitive, making it easy to switch between modes quickly.
Anonymous
Mar 06, 2026
Rating: 5/5
Stylish and functional
I bought this for my construction certification exam. It feels sturdy in hand, and the aesthetic design stands out compared to standard black calculators.
Anonymous
Mar 03, 2026
Rating: 4/5
Great value for accounting students
Very responsive keys and the solar backup is a lifesaver. I deducted one star only because the manual could be more detailed for advanced statistical functions.
Q: Does it come with a protective hard case?
A: The package includes a durable slide-on hard cover that protects the screen and keys when not in use. A separate carrying pouch is not included.
Q: Is this calculator allowed in the SAT and ACT exams?
A: Yes, this model does not have graphing capabilities or QWERTY keyboards, making it generally compliant with SAT and ACT regulations. However, we always recommend checking specific test day rules.
Q: What type of battery does it use if solar power is insufficient?
A: It uses one standard LR44 button cell battery as a backup power source when lighting conditions are too low for the solar panel to function effectively.
Q: Can it perform matrix inversion and determinant calculations?
A: Absolutely. This model supports matrix operations up to 3x3, including inversion, determinants, and multiplication, which is ideal for linear algebra courses.
Q: Is the gradient color prone to fading over time?
A: The gradient finish is applied using high-quality coating techniques designed to resist fading under normal usage conditions. Avoid exposing it to direct sunlight for extended periods to maintain its appearance.
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