$23.99 - $21.99
(as of Jun 13,2023 20:57:10 UTC – Details)
STYLE NO.: OS 991ES PLUS with protective cover
Display: 10+2 digits
Functions: 417 functions
Battery Type: LR44
Battery Life: 2 years
WARM ADVICE: Read the user guide carefully before using this scientific calculator.
40 Scientific Constants40 Metric ConversionsAlgebraGeomeStatisticstry
Basic calculation9 Variable memoriesFunction calculationComplex number calculationStatistical calculationEquation calculationMatrix calculationTable functionVector calculationBase-n calculation
Easy Read Written Display
Written display expression same as textbook, convenient for students to check the calculation process and results.
Dual Power Supply
Solar and battery, double safe uninterruptible power, and energy-saving advantages.
Premium Sensitive Keys
Keys in the different areas have different shapes, are very sensitive. The letters printed on keys are pretty clear.
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.
Our color box packaging adopts ink printing and polishing process, which can be completely decomposed after recycling. However, the material is not hard enough at present. It may be damaged by the squeezing and collision during long-distance transportation. But the calculator itself is protected by a bubble bag well. Soon we will improve the product packaging and adopt more robust color boxes. Thank you for your understanding!
Be Applicable to：
College students, engineers, financial job man, etc.
1 x Scientific Calculator with slide cover.
1 x User Guide (English, Spanish, French, Chinese)
【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. Written display expression same as textbook,convenient for students to check the calculation process and results.
【Two Way Power Electronic Calculator】Solar and battery,double safe uninterruptible power,environmental protection and energy saving advantages.
【Ultra-light & Portable】Nice color matching: Matte silver panel & blue back; Weight: 120g; Size: 162 x 80 x 14(mm)/6.4 x 3.2 x 0.6 (inch);Material: ABS plastic. Convenient to carry it outside and hold it on one hand.
【Plastic Keys】Use high quality plastic keys,and make keys in different area have different shape, to give you the most comfortable experience. Letters printed on keys are super clear.
OSALO Scientific Calculator 417 Function 2 Line 10+2 Digits Written Display Solar Scientific Calculator (OS 991ES Plus)Create a new description for this product from the title with 500 characters