---
product_id: 490748782
title: "MAKINGTEC Engineering Scientific Calculator with Writing Tablet, Upgraded 991MS, with Solar Battery, 349 Functions, Professional Portable Foldable Calculator Notepad for Students, Teacher, Engineer"
brand: "makingtec"
price: "NT$1744"
currency: TWD
in_stock: true
category: "Makingtec"
url: https://www.desertcart.tw/products/490748782-makingtec-engineering-scientific-calculator-with-writing-tablet-upgraded-991ms-solar
store_origin: TW
region: Taiwan
---

# 349 advanced functions 6.5-inch writable tablet solar + replaceable battery MAKINGTEC Engineering Scientific Calculator with Writing Tablet, Upgraded 991MS, with Solar Battery, 349 Functions, Professional Portable Foldable Calculator Notepad for Students, Teacher, Engineer

**Brand:** makingtec
**Price:** NT$1744
**Availability:** ✅ In Stock

## Summary

> 🧮 Elevate your calculations—where precision meets productivity!

## Quick Answers

- **What is this?** MAKINGTEC Engineering Scientific Calculator with Writing Tablet, Upgraded 991MS, with Solar Battery, 349 Functions, Professional Portable Foldable Calculator Notepad for Students, Teacher, Engineer by makingtec
- **How much does it cost?** NT$1744 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/490748782-makingtec-engineering-scientific-calculator-with-writing-tablet-upgraded-991ms-solar)

## Best For

- makingtec enthusiasts

## Why This Product

- Trusted makingtec brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Eco-Friendly Power Duo:** Solar panel paired with replaceable battery ensures uninterrupted, long-lasting performance.
- • **Responsive, Premium Keys:** Experience smooth, tactile feedback with upgraded sensitive keys designed for accuracy.
- • **Foldable & Ultra-Portable:** Compact design folds to protect your device and fits effortlessly into your busy lifestyle.
- • **349 Functions for Every Equation:** From complex numbers to statistics, master every calculation with professional precision.
- • **All-in-One Calculation & Note Hub:** Seamlessly jot down ideas while crunching numbers on the integrated writing tablet.

## Overview

The MAKINGTEC Upgraded 991MS is a professional-grade scientific calculator featuring 349 computing functions and a 6.5-inch writable tablet for note-taking. Powered by solar energy with a backup replaceable battery, it offers enhanced key sensitivity and a foldable, portable design ideal for students, teachers, and engineers seeking efficiency on the go.

## Description

Buy MAKINGTEC Engineering Scientific Calculator with Writing Tablet, Upgraded 991MS, with Solar Battery, 349 Functions, Professional Portable Foldable Calculator Notepad for Students, Teacher, Engineer online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

## Features

- 【Scienticfic Calculator with Notepad】Come with a 6.5 inch writing tablet and a pen, which allows you to take notes while calculating. You can press the delete button to erase the notes, and also can lock it to keep it.
- 【349 Computing Functions】Include fractions, statistics, complex number calculations, linear regression, base arithmetic, computer science, standard deviation, and polar-rectangular conversions, etc.
- 【More Sensitive Key】Adopt premium plastic material key, which makes it more sensitive and more precise than silicone key. Comfortable to touch.
- 【Solor Energy】Solar panel + replaceable button for smooth trial and long battery life.
- 【Foldable & Portable】Calculator Notepad is foldable, closed to dust, easy storage, easy to carry. Ideal for junior & high school students, college students and professional researchers.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BCW865F4 |
| Best Sellers Rank | #27,955 in Office Products ( See Top 100 in Office Products ) #83 in Scientific Calculators |
| Brand | MAKINGTEC |
| Color | black |
| Customer Reviews | 2.8 2.8 out of 5 stars (3) |
| Date First Available | 26 July 2022 |
| Item Weight | 250 g |
| Lines Per Page | 2 |
| Manufacturer | MAKINGTEC |
| Manufacturer Part Number | ZRR-123 |
| Material Type | Plastic, Silicone |
| Product Dimensions | 16.2 x 8.1 x 0.03 cm; 250 g |

## Product Details

- **Brand:** MAKINGTEC
- **Calculator Type:** Engineering/Scientific
- **Colour:** black
- **Power source:** Solar
- **Screen size:** 6.5 Inches

## Images

![MAKINGTEC Engineering Scientific Calculator with Writing Tablet, Upgraded 991MS, with Solar Battery, 349 Functions, Professional Portable Foldable Calculator Notepad for Students, Teacher, Engineer - Image 1](https://m.media-amazon.com/images/I/81tyGrnAswL.jpg)

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**Shop now:** [https://www.desertcart.tw/products/490748782-makingtec-engineering-scientific-calculator-with-writing-tablet-upgraded-991ms-solar](https://www.desertcart.tw/products/490748782-makingtec-engineering-scientific-calculator-with-writing-tablet-upgraded-991ms-solar)

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-02-09*