Buy OSALO Scientific Calculator for Students - OS-991EX CW at Best Price in Bangladesh
- Warranty Period: 12 Months
- Country of Origin: China
- Number Of Digit: 12 Digit
পণ্য বিবরণী ও স্পেসিফিকেশন
পণ্য সারসংক্ষেপ (Summary)
The OSALO OS-991EX calculates 552 math functions through a 192 x 63 pixel display. Dual power circuits draw energy from solar cells or internal batteries. With 151 more functions than the OS-991MS, this version replaces the old 2-line screen with high-resolution icons for faster navigation. Key Features 552 Math Functions: Calculus, complex numbers, and spreadsheet operations. Solves advanced engineering problems without external tables. Natural Textbook Display: 192 x 63 pixel resolution showing fractions and roots. Expressions appear exactly as they look in textbooks. Dual Power Input: Integrated solar panel and LR44 battery. Operations continue during indoor load shedding or low light. Matrix and Vector Support: 4x4 matrix and 3-dimensional vector calculations. Handles linear algebra requirements for higher secondary exams. 12 Months Warranty: One-year hardware protection against internal circuit failure. Covers the device through a full academic cycle. Frequently Asked Questions Is OSALO OS-991EX allowed in HSC exams? Bangladesh education boards generally permit non-programmable scientific calculators for public examinations. This model lacks text-storage capabilities, meeting standard exam hall requirements. How many functions does OSALO 991EX have? This device contains 552 pre-programmed mathematical functions. It handles everything from basic arithmetic to 4x4 matrix equations and spreadsheet data.
রিভিউ ও রেটিং (Review & Rating)
This is an nice scientific calculator. Thank you to the delivery man. For SSC and HSC exams
কোয়ালিটি ভালোই, ফাস্ট। তবে longevity এর গ্যারান্টি দেয়া যায় না। আমার old osalo ক্যালকুলেটর এখনো ভালোই চলেছে (২,৫ বছর +), কম দামে ভালো হলেও গুরুত্বপূর্ণ পরীক্ষায় দ্বিতীয় ক্যালকুলেটর রাখা must।
excellent product at this price point good display Response time is too fast. good quality and it has contrast Setting 😮💨 best of all. Only problem is solar aint Working. But fully recommended 🫡
This was amazing. This product was very nice.
I have been using this calculator for over 20 months; it fell off my hands on the floor countless times and even drenched in rainwater completely one time, yet it still gives the best performance you can ask for, it's fast, it's reliable and it's durable. One of my best buys from rokomari and undoubtedly, the best calculator I've ever used.
প্রশ্ন ও উত্তর (Q/A)
osalo os 991ex Eta Available kobe hbe?
প্রিয় গ্রাহক, দুঃখিত, এটি নির্ভর করে সাপ্লায়ারের উপর ; তাই নিশ্চিতভাবে বলা যাচ্ছে না কবে পাওয়া যাবে। ধন্যবাদ।
Eta ki copy?
প্রিয় গ্রাহক, অবশ্যই শতভাগ অরিজিনাল পণ্য আপনি পাবেন। আমরা সবসময় অরিজিনাল পণ্য সরবরাহ করে থাকি। ধন্যবাদ।
This product is available?
Dear customer, Yes, The product is available in stock—order before stock is out. Thanks for your question.
Aita ki copy ?? Origin chin
Dear customer, it's an original product made in China. Thanks for your question.
