Product Description

See More Clearly. Calculate More Confidently.

A good scientific calculator should do more than solve equations-it should also make every number and formula easy to read. The SENBO Large Display Scientific Calculator is designed with a clear four-line LCD screen and natural textbook-style display, allowing mathematical expressions to appear in a more familiar and organised format.

Whether you're working through algebra, trigonometry, statistics or engineering calculations, the clear display helps reduce reading mistakes and allows you to focus on solving problems instead of trying to interpret a crowded screen.

For students, teachers and professionals who spend long periods working with numbers, a comfortable viewing experience can make every calculation feel faster and more enjoyable.

Designed for Comfortable Everyday Reading

Reading complex formulas on a small display can sometimes slow down learning.

The large four-line LCD screen presents supported mathematical expressions with improved clarity, making fractions, square roots and multiple calculation steps easier to follow.

Combined with the natural textbook display, equations appear in a format that closely resembles classroom textbooks, helping students compare examples, check answers and understand mathematical relationships more naturally.

The result is a calculator that feels familiar from the first day of use.

A Better Learning Experience

The clearer a calculator displays information, the easier it becomes to identify mistakes before they affect the final answer.

The built-in Multi-Replay function allows previous calculations to be reviewed without entering everything again. Students can move through earlier steps, adjust individual values and continue calculating without restarting the entire equation.

This creates a smoother study experience during homework, classroom exercises and revision sessions, especially when solving longer mathematical problems.

Reliable Power Throughout the Day

In addition to its easy-to-read display, the calculator features a dependable dual-power system.

The built-in solar panel assists operation in suitable lighting conditions, while the replaceable button battery provides dependable backup when studying indoors or in lower-light environments.

Automatic power-off helps reduce unnecessary battery consumption, making the calculator practical for everyday school and university use.

There is no need for charging cables or external power sources-simply pick it up and start calculating whenever inspiration strikes.

417 Functions for Everyday Mathematics

This calculator supports 417 scientific functions across 8 calculation modes, providing the versatility needed for daily mathematical study.

Functions include fractions, logarithms, powers, roots, trigonometric calculations, statistics, complex numbers, matrices, vectors, integration, differentiation, equations and function tables.

Instead of carrying multiple tools, students can complete a wide variety of calculations using one reliable calculator designed for everyday learning.

Slim, Lightweight and Ready to Travel

Daily study often means moving between classrooms, libraries, tutoring sessions and home.

The slim body fits comfortably inside backpacks and laptop bags without taking up unnecessary space. The included sliding protective cover helps keep the display and keypad protected from scratches during transport.

Responsive plastic keys with clear function labels provide comfortable operation throughout long study sessions.

Suitable for:

School Mathematics

University Courses

Science Classes

Engineering Study

Homework

Revision

Daily Calculations

Important: Examination regulations vary by institution. Please confirm local calculator requirements before use.

Specifications

Brand: SENBO

Product Type: Scientific Calculator

Model Style: FX-991ES Plus

Functions: 417

Calculation Modes: 8

Display: Natural Textbook Display

Screen: Four-Line LCD Display

Replay: Multi-Replay

Power: Solar-Assisted + Replaceable Button Battery

Power Saving: Automatic Power-Off

Size: Approx. 162 × 80 mm

Weight: Approx. 113 g

Protective Cover: Sliding Protective Cover

What's in the box
1 x SENBO Scientific Calculator
1 x Sliding Protective Cover