821D SUMINI Calculator Clean Great

Review SUMINI Vintage Calculator Soft Case Very Clean Tested Working Great

The Sumini 821D calculator is a versatile and reliable tool for performing various mathematical calculations. This calculator boasts a sleek and modern design, making it not only functional but also an aesthetic addition to any desk or workstation. The keys are large and clearly labeled, ensuring easy access to all the functions and making it simple to input data.

The Sumini 821D calculator is equipped with a wide range of features to cater to different mathematical needs. It offers basic arithmetic functions such as addition, subtraction, multiplication, and division, as well as more complex ones like square root, logarithmic, and trigonometric calculations. The calculator also includes memory functions, allowing you to store and recall values for quick reference.

One of the standout features of the Sumini 821D calculator is its ability to handle complex equations with ease. It can perform multiple calculations in a single keystroke, making it an ideal tool for engineers, scientists, and students. The calculator also features a high-resolution LCD display, which ensures that all calculations are displayed clearly and accurately.

The Sumini 821D calculator is built to last, with a durable and robust design. It is powered by two AAA batteries, which are included with the calculator. The calculator also features an automatic shut-off function to conserve battery life when not in use.

In summary, the Sumini 821D calculator is a powerful and versatile tool for performing various mathematical calculations. Its sleek design, easy-to-use keys, and wide range of features make it an ideal choice for professionals, students, and anyone who needs to perform complex calculations on a regular basis. With its durable design, accurate calculations, and long battery life, this calculator is sure to meet and exceed your expectations.

The Sharp Electronics SUMI-821D is a scientific calculator with advanced functions, making it an ideal choice for students and professionals in fields such as mathematics, engineering, and science. Here are some pros and cons to help you make an informed decision about purchasing this calculator.

1. Advanced Functions: The SUMI-821D offers a wide range of advanced mathematical functions, including trigonometric, exponential, and statistical functions. This makes it a versatile tool for solving complex mathematical problems.

2. Large Display: The calculator features a large, easy-to-read display that shows up to 12 digits plus a decimal point. This makes it easier to input and read long calculations.

3. Durable Design: The calculator has a sleek and durable design, with a slim profile and a sturdy construction. This makes it a great choice for frequent travelers or those who need a calculator that can withstand daily use.

4. Built-in Equation Solver: The SUMI-821D has a built-in equation solver that allows you to input and solve equations step by step. This is a useful feature for students and professionals who need to solve complex equations.

5. Affordable Price: Compared to other scientific calculators with similar features, the SUMI-821D is priced affordably, making it a great value for the price.

1. Limited Programmability: The calculator does not offer extensive programmability options, which may be a drawback for users who need to create custom functions or perform complex calculations.

2. Battery Life: The calculator uses a CR2032 battery, which is not rechargeable. This means that you will need to replace the battery regularly, which can be an inconvenience.

3. No USB Connectivity: The calculator does not have USB connectivity, which means you cannot easily transfer data to and from a computer or other devices.

The Sharp Electronics SUMI-821D is a great scientific calculator for students and professionals who need to perform complex mathematical calculations on the go. Its advanced functions, large display, and durable design make it a versatile and reliable tool. While it may not offer extensive programmability options or USB connectivity, its affordable price makes it a great value for the features it offers.

If you are in the market for a scientific calculator and are looking for advanced functions, a large display, and a durable design, the Sharp Electronics SUMI-821D is an excellent choice. Its affordable price makes it a great value for the price, making it a recommended option for students and professionals in fields such as mathematics, engineering, and science.

Details:

Only what is pictured included, nothing more. Lots and lots to choose from. Will gladly combine shipping.

specifications vintcalc:

• brand: Sumini
• mpn: 821d
• part type: Calculator Case
• country/region of manufacture: Germany
• vintage: Yes

general vintcalc:

• category: Electronics > Vintage Calculators

returns vintcalc:

• time: 30 days
• policy: returns accepted
• method: money back
• paid by: seller

offer vintcalc:

• sold #: 11
• in stock #: 1
• price: $29.99
• item condition: Used
• availability: in stock
• best offers: true
• started: september 22, 2025
• options: ship-to-home

seller vintcalc:

• city: gilroy, california
• rating: 99.8%
• # reviews: 5088

payments vintcalc:

• other
• wallet: paypal
• credit card: visa

shipping vintcalc:

• carrier: usps
• class: standard
• type: fixed
• transit: 3-8 days
• service: usps ground advantage