---
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: "$1993"
currency: MXN
in_stock: true
category: "Makingtec"
url: https://www.desertcart.mx/products/490748782-makingtec-engineering-scientific-calculator-with-writing-tablet-upgraded-991ms-solar
store_origin: MX
region: Mexico
---

# 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:** $1993
**Availability:** ✅ In Stock

## Summary

> 🧮 Elevate your calculations—where science meets style and efficiency!

## 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?** $1993 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/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

- • **Multitask Like a Pro:** Calculate and jot notes simultaneously on the integrated 6.5-inch writing tablet—never lose a thought mid-equation.
- • **Responsive Precision:** Premium plastic keys deliver ultra-sensitive, tactile feedback for faster, error-free input.
- • **Compact & Travel-Ready:** Foldable design protects your calculator and notepad from dust, fitting perfectly in your bag for on-the-go productivity.
- • **Eco-Friendly Endurance:** Solar-powered with a backup replaceable battery ensures uninterrupted performance wherever you work.
- • **Power Through Complex Problems:** Access 349 scientific functions including statistics, complex numbers, and linear regression for every professional challenge.

## Overview

The MAKINGTEC Upgraded 991MS is a professional-grade scientific calculator featuring 349 functions and a unique 6.5-inch writing tablet for note-taking. Its solar-powered design with a replaceable battery ensures long-lasting use, while premium keys offer precise input. Foldable and portable, it’s ideal for students, teachers, and engineers seeking a versatile, all-in-one calculation and note solution.

## 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 | #25,869 in Office Products ( See Top 100 in Office Products ) #77 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.mx/products/490748782-makingtec-engineering-scientific-calculator-with-writing-tablet-upgraded-991ms-solar](https://www.desertcart.mx/products/490748782-makingtec-engineering-scientific-calculator-with-writing-tablet-upgraded-991ms-solar)

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*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-01-24*