OSALO Scientific Calculator For Students - (OS-991ES PLUS)

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Specification:

Brand: OSALO
Model: OS‑991ES PLUS
Product Type: Scientific calculator
Display: 10+2 digit LCD display (two‑line)
Power Source: Solar + battery (dual power)
Battery Type: LR44 / solar assist
Number of Functions: 417 scientific functions
Body Material: Durable plastic
Color: Silver
Country of Origin: China

Features:

Dual power (solar + battery)
10+2 digit two‑line display
417 scientific functions
Large easy‑read LCD
Compact and lightweight design
Suitable for math, statistics, and engineering

About This Product

The OSALO Scientific Calculator OS‑991ES PLUS is a versatile scientific calculator designed for students and professionals tackling advanced mathematical tasks. Featuring a dual power system with both solar and battery operation, it ensures uninterrupted performance in varied lighting conditions. The 10+2 digit two‑line LCD display lets you view both expressions and results simultaneously, improving accuracy and ease of use.

With 417 built‑in scientific functions, this calculator handles a wide range of calculations — from algebra and trigonometry to statistics and complex equations — making it ideal for school, college, or engineering coursework. Its compact and lightweight build adds portability for daily classes and exam settings while the clear LCD enhances visibility during extended use.

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