🔢 Elevate your calculations—because precision is the new power move.
The Joinus Scientific Calculator Cal Star HK-991ESP combines a 2-line Natural Textbook Display with 417 scientific functions and a 10+2 digit capacity. Powered by both solar and battery, it offers reliable, eco-friendly performance. Its adjustable brightness and ultra-light design with a protective slide case make it the perfect tool for professionals and students seeking accuracy and portability.
| Manufacturer | Joinus General Trading Co L.L.C |
| Brand | Joinus |
| Model number | HK-991ESP |
| Product Dimensions | 16 x 8 x 0.1 cm; 360 g |
| Batteries | 1 LR44 batteries required. (included) |
| Color | Silver |
| Material Type | Plastic |
| Number of Items | 1 |
| Size | Standard Scientific Calculator |
| Manufacturer Part Number | HK-991ESP |
| Item Weight | 360 g |
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