---
product_id: 677638062
title: "Scientific Calculators, Math Calculator with 417 Function, Solar Battery Power and 4-Lines Display, School Supplies for Middle High College Students Teachers (Black 991ES)"
brand: "ipepul"
price: "€ 36.80"
currency: EUR
in_stock: true
reviews_count: 5
category: "I Pepul"
url: https://www.desertcart.ie/products/677638062-scientific-calculators-math-calculator-with-417-function-solar-battery-power
store_origin: IE
region: Ireland
---

# 4-line natural display 417 advanced functions Dual solar & battery power Scientific Calculators, Math Calculator with 417 Function, Solar Battery Power and 4-Lines Display, School Supplies for Middle High College Students Teachers (Black 991ES)

**Brand:** ipepul
**Price:** € 36.80
**Availability:** ✅ In Stock

## Summary

> 📐 Elevate your math game with precision and power — never miss a calculation!

## Quick Answers

- **What is this?** Scientific Calculators, Math Calculator with 417 Function, Solar Battery Power and 4-Lines Display, School Supplies for Middle High College Students Teachers (Black 991ES) by ipepul
- **How much does it cost?** € 36.80 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/677638062-scientific-calculators-math-calculator-with-417-function-solar-battery-power)

## Best For

- ipepul enthusiasts

## Why This Product

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

## Key Features

- • **Power That Lasts:** Dual solar and battery system ensures uninterrupted use anywhere
- • **Effortless Efficiency:** Multi-functional keyboard designed for fast, precise input and smooth workflow
- • **See Every Step Clearly:** Large 4-line natural display shows formulas and results intuitively
- • **Built to Endure Your Hustle:** Durable, lightweight design perfect for students and professionals on the go
- • **Master Complex Calculations:** 417 built-in functions from algebra to calculus for every challenge

## Overview

The iPepul 991ES Scientific Calculator combines 417 advanced mathematical functions with a large 4-line natural display and dual solar/battery power. Designed for students, teachers, and professionals, it offers durable construction, an ergonomic multi-functional keyboard, and intuitive navigation to handle everything from basic arithmetic to complex engineering calculations with ease.

## Description

1.10 +2 digits with two-line LCD dispalay 2.Two way power supply 3.417 /240 kinds of functions 4.Multi-playback 5.Statistics (statistical data editing, the standard deviation, regression analysis) 6.Fraction calculated 7.Continuous computing 8.Time, decimal and hexadecimal Conversion 9.Comes with slide-on hard case. 10.Pass Rohs&CE 11.Environment friendly material

Review: The IPepul Scientific Calculator is a great choice for students and professionals alike. It’s lightweight, well-built, and easy to navigate—even for more advanced math and science problems. The display is clear and bright, and the buttons respond smoothly without sticking. I’ve used it for algebra, trigonometry, and statistics, and it handles everything perfectly. The battery life is impressive, and I love that it’s durable enough to last through long study sessions or exams. Overall, an excellent and affordable calculator that does exactly what you need it to!
Review: I recently purchased the Scientific Calculator, and I must say it has exceeded my expectations. As a student majoring in Statistics, having a reliable calculator is crucial for my daily coursework and exams. Here's why I highly recommend this scientific calculator: 1. Functionality: The calculator boasts a comprehensive set of functions suitable for advanced scientific calculations. From basic arithmetic to complex algebraic equations and trigonometric functions, this device has proven to be a versatile and indispensable tool for my academic needs. 2. User-Friendly Design: The user interface is intuitive and well-designed. The buttons are responsive, making data input quick and accurate. The clear and readable display ensures that even complex equations are easy to follow. The ergonomic design also contributes to comfortable extended use during study sessions or exams. 3. Durability: Constructed with quality materials, this calculator feels sturdy and durable. It has survived a few accidental drops without any noticeable damage. The robust build gives me confidence that it will last throughout my academic journey. In conclusion, I am thoroughly satisfied with my purchase of the Scientific Calculator. It has become an essential tool for my academic pursuits, and I highly recommend it to fellow students and professionals alike.

## Features

- 【417 Calculation Functions】: The scientific calculators has 417 different calculation function built-in, including trigonometric function, exponential function, logarithmic function, calculus, statistics, algebra, and other advanced mathematical functions. It also supports complex number calculations, matrix calculations, vector calculations, etc., and can meet the various scientific and engineering calculation needs
- Large Screen Four-Line Display: The scientific calculator adopts a four-line large screen design, which is convenient for users to read. It also supports the natural display, which can directly display the input and output of mathematical formulas on the screen, making complex calculations more intuitive.The key SHITT -MODE (SETUP) DOWN -6( LEFT Continue RIGHT ).Use LEFT and RIGHT to adjust screen brightness
- Dual Power: This calculator has a built-in solar panel and durable battery, which can be used continuously for many years in indoor and outdoor environments, reducing the frequency of battery replacement and making it more economical. This also makes it the best choice for people who need to use it for a long time, such as school supplies, high school students, accountants, and non-programmable calculators
- Multi-Functional Keyboard: The calculator has a keyboard with many scientific symbols and function keys built-in, making it easy to perform various calculations and functions. Especially for people who need to perform scientific calculations frequently, this keyboard design can greatly improve their calculation efficiency, such as teachers, engineers, college students, nurses, and accountants
- The Best School Supplies: This calculator is very suitable for students in elementary school, junior high school, high school, college, engineers, nurses, and teachers, etc. It can meet their calculation needs in the fields of mathematics, science, and engineering, and help them better understand and apply knowledge. Therefore, as a gift, it can be given to these people who need to perform scientific calculations.𝐂𝐎𝐍𝐓𝐀𝐂𝐓 𝐔𝐒 𝐅𝐎𝐑 𝐄𝐋𝐄𝐂𝐓𝐑𝐎𝐍𝐈𝐂 𝐔𝐒𝐄𝐑’𝐒 𝐆𝐔𝐈𝐃𝐄

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DFTDS5Y6 |
| Batteries | 1 LR44 batteries required. (included) |
| Brand | iPepul |
| Color | Black |
| Customer Reviews | 4.4 4.4 out of 5 stars (323) |
| Date First Available | 4 November 2024 |
| Item Weight | 120 g |
| Manufacturer | ipepul |
| Manufacturer Part Number | 991ES |
| Model number | 991ES |
| Number of Items | 1 |
| Product Dimensions | 16.51 x 8.31 x 0.1 cm; 120 g |

## Product Details

- **Brand:** iPepul
- **Calculator Type:** Engineering/Scientific
- **Colour:** Black
- **Power source:** Solar Powered
- **Screen size:** 2.8 Inches

## Images

![Scientific Calculators, Math Calculator with 417 Function, Solar Battery Power and 4-Lines Display, School Supplies for Middle High College Students Teachers (Black 991ES) - Image 1](https://m.media-amazon.com/images/I/51OastRHpVL.jpg)
![Scientific Calculators, Math Calculator with 417 Function, Solar Battery Power and 4-Lines Display, School Supplies for Middle High College Students Teachers (Black 991ES) - Image 2](https://m.media-amazon.com/images/I/61047uXrwcL.jpg)
![Scientific Calculators, Math Calculator with 417 Function, Solar Battery Power and 4-Lines Display, School Supplies for Middle High College Students Teachers (Black 991ES) - Image 3](https://m.media-amazon.com/images/I/61C3WT614SL.jpg)
![Scientific Calculators, Math Calculator with 417 Function, Solar Battery Power and 4-Lines Display, School Supplies for Middle High College Students Teachers (Black 991ES) - Image 4](https://m.media-amazon.com/images/I/61EjEIv79yL.jpg)
![Scientific Calculators, Math Calculator with 417 Function, Solar Battery Power and 4-Lines Display, School Supplies for Middle High College Students Teachers (Black 991ES) - Image 5](https://m.media-amazon.com/images/I/61IkX5WcXeL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by R***A on 6 October 2025*

The IPepul Scientific Calculator is a great choice for students and professionals alike. It’s lightweight, well-built, and easy to navigate—even for more advanced math and science problems. The display is clear and bright, and the buttons respond smoothly without sticking. I’ve used it for algebra, trigonometry, and statistics, and it handles everything perfectly. The battery life is impressive, and I love that it’s durable enough to last through long study sessions or exams. Overall, an excellent and affordable calculator that does exactly what you need it to!

### ⭐⭐⭐⭐⭐ Review
*by J***Y on 11 November 2023*

I recently purchased the Scientific Calculator, and I must say it has exceeded my expectations. As a student majoring in Statistics, having a reliable calculator is crucial for my daily coursework and exams. Here's why I highly recommend this scientific calculator: 1. Functionality: The calculator boasts a comprehensive set of functions suitable for advanced scientific calculations. From basic arithmetic to complex algebraic equations and trigonometric functions, this device has proven to be a versatile and indispensable tool for my academic needs. 2. User-Friendly Design: The user interface is intuitive and well-designed. The buttons are responsive, making data input quick and accurate. The clear and readable display ensures that even complex equations are easy to follow. The ergonomic design also contributes to comfortable extended use during study sessions or exams. 3. Durability: Constructed with quality materials, this calculator feels sturdy and durable. It has survived a few accidental drops without any noticeable damage. The robust build gives me confidence that it will last throughout my academic journey. In conclusion, I am thoroughly satisfied with my purchase of the Scientific Calculator. It has become an essential tool for my academic pursuits, and I highly recommend it to fellow students and professionals alike.

### ⭐⭐⭐⭐⭐ Review
*by S***I on 27 August 2025*

J’adore parce que je peux supprimer facilement … exposent et racine carré plus developer fraction plus facile

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- Scientific Calculators, IPepul Math Calculator with 417 Function, Solar Battery Power and 4-Lines Display, School Supplies for Middle High College Students Teachers (Black 991ES)
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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-26*