fs-991ES PLUS Scientific Calculator – Purple
fs-991ES PLUS Scientific Calculator – Purple
UNIT FS-991ES PLUS Scientific Calculator
Designed for students, professionals, and everyday calculations, the UNIT FS-991ES PLUS offers up to 417 built-in functions to handle everything from basic arithmetic to advanced scientific operations. Its textbook-style display shows equations and expressions exactly as they appear in books, making calculations easier to read and understand.
Features:
• 417 built-in functions
• Natural textbook display for clearer expressions
• Two-way power system with solar and battery operation
• Supports fractions, matrices, vectors, complex numbers, and statistics
• Integral and differential calculation functions
• Easy menu navigation system
• Ideal for school, university, engineering, and scientific use
Built for speed, accuracy, and convenience in daily study or professional work.
FAQs
What types of calculators do you manufacture?
We produce a wide range of scientific, desk, pocket and printing calculators designed for schools, universities, offices, and professional use.
Which industries or sectors do you serve?
We supply the education, retail, corporate, and governmental sectors, as well as wholesalers and distributors across multiple markets.
Do your calculators comply with international quality standards?
Yes. All models undergo strict quality control and comply with ISO and CE certification standards.
How can I become an authorized distributor or reseller?
Submit a short application via our partnership form. Once reviewed, our sales team will contact you to discuss requirements and territory availability.