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OSALO Scientific Calculator 417 Function 2 Line Written Display 10+2 Digits Solar and Battery Calculators for Students Secondary School College Pink (OS 991ES II)

5.0 (8) Write Review
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$21.99

$ 10 .99 $10.99

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1.Style:Os-82es


About this item

  • 【417 Functions Scientific Calculator】With 417 functions for fractions, exponents, matrix calculations, integral, algebra, complex number calculations, standard deviation, solving for variables, permutations and combinations, and linear regression, Scientific Calculator covers most of the scientific functions that students from middle school through college will need to use in their courses and on exams. Reading instruction attached will help you know how to use and find these functions
  • 【Written Display Scientific Calculator】Input expressions and arithmetic operations same as written form in the textbook, which is more easy to read than traditional calculators. The 2 line display shows both input and calculation results,convenient for students to check the calculation process and results
  • 【Brightness Adjustment Function】The screen brightness can be adjusted by simple operation to get the best display effect, dimming to relieve eye fatigue, brightening to get clearer display results, to improve the calculation efficiency
  • 【Dual Power Source Electronic Calculator】Solar and battery,double safe uninterruptible power,environmental protection and energy saving advantages
  • 【Ultra-light & Portable】Weight: 5.1oz. (145g); Size: 164 x 80 x 17(mm)/6.4 x 3.15 x 0.6 7(inch); Material: ABS plastic. With slide-on hard case, convenient to carry it outside and hold it on one hand


Product Description

Scientific Calculator

Shortcut Keys/One-Touch Function: Instantly access common mathematical constants like π, sin, cos, e and more.

Editable Expressions: When editing a complex formula, you can move the cursor to directly edit specific parts, minimizing the need for re-entering entire sections.

History Recall: Avoid repeating complex multi-step calculations by recalling recent formulas.

Matrix Operations: Support table-like input and viewing; automatically recognize and populate rows and columns when inputting matrices.

Scientific Calculator
Scientific Calculator

Applicable Tests: SAT, ACT, PSAT/NMSQT, IB, GED, Praxis, High School and College Daily Tests.

Scientific Calculator

Textbook-Like Written Display

Our scientific calculator utilizes textbook-like written display technology to enhance the readability of mathematical symbols and ease of operation.

Scientific Calculator

Dual Power for Reliability

Dual power sources—solar and battery—ensure continuous functionality, even during critical exams or assignments.

Scientific Calculator

Premium Sensitive Keys

With premium sensitive keys and smart history feature, you can quickly retrieve and effortlessly reuse or edit previous formulas.

Scientific Calculator

With ABS Slide Case

It has 417 functions and covers most of the needs of scientific functions that students may need in math, physics, chemistry, etc.

  • You can change the result with the ‘S⇔D’ key; or you can configure the calculator settings:

    1. Press the ‘SHIFT’ key.

    2. Press the ‘MODE’ key.

    3. Select 1 or 2 to set the mode for fractions or decimals. MthIO for fraction and LineIO for decimal.

  • 1. Press the ‘SHIFT’ key

    2. Press the ‘MODE’ key

    3. Press the ‘ ↓ ’ key

    4. Press the 6: < CONT >

    5. Press ‘ ← ’ and ‘ → ’ key to adjust contract

  • 1. Press ‘SHIFT’ ‘AC’ (OFF) to turn off the calculator

    2. Unscrew the screw on the top right corner of the backside

    3. Replace the battery, taking care that its plus (+) and minus (-) ends are facing correctly

    4. Initialize the calculator


Nataliia
2025-08-23 14:37:30
The OSALO Scientific Calculator with 240 functions is an excellent choice for anyone needing a reliable and efficient calculator. It handles complex calculations with ease, from algebra and trigonometry to statistics and engineering functions.The buttons are responsive, and the display is clear, making it easy to read equations. It’s also lightweight yet durable, perfect for school, exams, and professional use. Highly recommend for students and anyone who needs a solid scientific calculator at an affordable price!
Michael Paul Bailey
2025-07-27 19:18:52
I needed a good little desk calculator for quick arithmetic. I wanted something a little better than a standard calculator but I didn’t want to spend a ton for a graphing calculator. This fit my needs perfectly.
Sergio
2025-07-07 11:00:35
Súper bien
Matthew
2025-06-16 18:36:23
It works and it hasn’t disappointed, the brightness could be a little higher, it may be just me. But its nice
Shopping fanatic
2025-06-03 14:35:07
This worked wonderful for my son's school. It does everything it is reliable. And the buttons were easy to push and the display was very good and able to read.
Bella
2025-05-08 13:17:13
noty worth noty worth noty worth noty worth noty worth
miguel
2025-02-27 12:52:03
Very light and easy to work
saide
2025-02-13 15:42:10
Mi hija va en la preparatoria, y le funciona muy bien para calculo y geometría.