---
product_id: 474669680
title: "Calculator Extra Large Display Accounting Big Button 12 Digits Desktop Solar Calculator (OS-6815)"
brand: "pendancy"
price: "฿3897"
currency: THB
in_stock: true
url: https://www.desertcart.co.th/products/474669680-calculator-extra-large-display-accounting-big-button-12-digits-desktop
store_origin: TH
region: Thailand
---

# 30° angled 5-inch display dual solar & battery power 12-digit precision Calculator Extra Large Display Accounting Big Button 12 Digits Desktop Solar Calculator (OS-6815)

**Brand:** pendancy
**Price:** ฿3897
**Availability:** ✅ In Stock

## Summary

> 🔢 Crunch numbers like a pro with clarity and power at your fingertips!

## Quick Answers

- **What is this?** Calculator Extra Large Display Accounting Big Button 12 Digits Desktop Solar Calculator (OS-6815) by pendancy
- **How much does it cost?** ฿3897 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/474669680-calculator-extra-large-display-accounting-big-button-12-digits-desktop)

## Best For

- pendancy enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Durable ABS plastic withstands drops and daily office hustle without a scratch.
- • **Stable & Secure:** Four anti-slip feet keep your calculator firmly in place during intense number crunching.
- • **Crystal Clear View:** 5-inch large display tilted at 30° for optimal visibility—no more squinting or neck strain.
- • **Effortless Accuracy:** Oversized, color-coded keys ensure every calculation is precise and mistake-free.
- • **Power That Never Quits:** Dual solar and battery power guarantee uninterrupted performance, even in low light.

## Overview

This desktop calculator features a 5-inch 30° angled large display and 12-digit precision, designed for accounting professionals. Its vibrant, color-coded keys enhance accuracy, while durable ABS plastic construction ensures longevity. Powered by both solar and included AA battery, it offers reliable, uninterrupted use. Anti-slip feet provide stability, making it ideal for office, home, or retail environments.

## Description

FeatureItem size: 185x156x41 mmItem weight: 330gDesktop calculatorLarge 12-digit display and big buttonDual PowerFunction[M+]Adds the number shown on the display to the number stored in the memory. Example:3*8+2*6.If you directly inputs these numbers to the calculator,you will see the wrong answer:156. If you press [3*8],[M+],[2*6],[M+],then press [MRC] once, you will get the right answer:36.[M-]Subtracts the number shown on the display to the number stored in the memory.[MRC]Combination of [MR] and [MC]. [MR]Recall the current memory register value. [MC]Clear the memory register (set to zero). When you press the key once, the [MR]key was activated, when you press the key twice,the [MC] was activated.[GT]Whenever the [=] key has been pressed,the result will be stored into the Grand Total Memory. Example:If you want to calculate [2*3+3*5+6*8],press [2*3=],then [3*5=],then [6*8=].Then press [GT],you will get the right answer 69.[MU]Stands for Mark Up,which is for calculating GROSS PROFIT MARGIN (GPM). Example:Enter [100] then press the [÷],then [15] then [MU] key,you will see 117.65 (15% of this total equates to 17.65)[Constant Calculations]To calculate[5*5*5*5+2+2=629],press[5*===+2==],you will see 629.[AC]Press it after each calculation to clear all values.WarningSolar panel provide limited power, please install the battery before use.The battery that comes with the product is a non-rechargeable battery, please do not charge.Package Including1 x Calculator(1 AA battery included)1 x English General Guide

## Features

- 【5in Large Display&Button Calculator】When you put the calculator on the desktop, the 30°large display is just opposite your sight, more clear than a straight display. Large and separated keys, make your every press more accurate.
- 【Large Accounting Calculator】Silver panel with orange,blue and gray color buttons,vibrant color matching. The functions on the panel meet the needs of your accounting work and daily used.
- 【ABS Plastic】This large calculator is made of ABS high strength engineering plastics, light weight but durable. It can withstand the impact of falling on the height of the desktop for several times.
- 【Solar and Battery Powered】The calculator uses high conversion rate solar panels, solar power can be used in well-lit areas.At the same time, we provide matching battery（included one AA battery）double safe uninterruptible power. The calculator will shut down automatically after 8 minutes without operation.
- 【Office Desktop Calculator】This calculator is with 4 anti-slip feets, it's stable safely on the desk of your office. Help you calculate quickly. Fit for everyone using in office, home, bank and supermarket.Imported IC.Sentive Computer Keys.Extra Large Display

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07K9CC4Q2 |
| Best Sellers Rank | #2,571 in Office Products ( See Top 100 in Office Products ) #9 in Basic Office Calculators |
| Brand | pendancy |
| Calculator Type | Standard Function |
| Color | OS-6815 |
| Customer Reviews | 4.6 out of 5 stars 3,791 Reviews |
| Display Type | LCD |
| Enclosure Material | ABS Plastic + Metal |
| Item Dimensions L x W | 7.2"L x 6.1"W |
| Item Height | 0.1 centimeters |
| Item Type Name | desktop calculator |
| Manufacturer | pendancy Co.,Ltd |
| Number of Batteries | 1 AA batteries required. |
| Power Source | Solar & AA Battery |
| Screen Size | 5 Inches |
| UPC | 717877379138 717877379725 |
| Warranty Description | Free replacement within 90 days |

## Product Details

- **Brand:** pendancy
- **Colour:** OS-6815-1
- **Calculator Type:** Standard Function
- **Power source:** Solar & AA Battery
- **Screen size:** 5 Inches
- **Number of batteries:** 1 AA batteries required.
- **Model name:** OS 6815
- **Material:** Plastic
- **Product dimensions:** 18.5L x 15.6W centimetres
- **Display type:** LCD

## Images

![Calculator Extra Large Display Accounting Big Button 12 Digits Desktop Solar Calculator (OS-6815) - Image 1](https://m.media-amazon.com/images/I/71rJWFu+tdL.jpg)
![Calculator Extra Large Display Accounting Big Button 12 Digits Desktop Solar Calculator (OS-6815) - Image 2](https://m.media-amazon.com/images/I/71LxGAdEt9L.jpg)
![Calculator Extra Large Display Accounting Big Button 12 Digits Desktop Solar Calculator (OS-6815) - Image 3](https://m.media-amazon.com/images/I/71q-rBbXvLL.jpg)
![Calculator Extra Large Display Accounting Big Button 12 Digits Desktop Solar Calculator (OS-6815) - Image 4](https://m.media-amazon.com/images/I/71DONQSKM1L.jpg)
![Calculator Extra Large Display Accounting Big Button 12 Digits Desktop Solar Calculator (OS-6815) - Image 5](https://m.media-amazon.com/images/I/71AM0-bmJNL.jpg)

## Available Options

This product comes in different **Colour Name, Size Name** options.

## Questions & Answers

**Q: Does this function like a 10key/adding machine? (Meaning not a standard function calculator)**
A: Before retiring, I used calculators, with the paper, for 30 years without looking at the keys & this is the first desktop non paper calculator that I can key in the numbers without looking again. Others didn’t “feel” like the 10 key calculators. This has multiple functions too.

**Q: Is there a button so you can square a number?**
A: There is not a button to square a number, but there is a button to get the square root of a number.

**Q: Website Display display shows 'Financial' but what arrived shows Finacial on the product. ?**
A: I don’t understand ur question... it is a basic calculator with WAY oversized keys, & WAY too big to keep on ur desk....I would not buy it again.

**Q: Does this have a fixed decimal point two places over so I can add up dollars and cents?**
A: it has the ability to add dollars and cents without typing the decimal point. just move the decimal flag to "A"

## Frequently Bought Together

- Desktop Calculator Extra Large 5in LCD Display 12-Digit Big Button Giant Accounting Calculator, Battery & Solar Powered, for Office Business & Home(OS-6815)
- CATIGA 12 Digits Desktop Calculator with Large LCD Display and Sensitive Button, Dual Solar Power and Battery, Standard Function for Office, Home, School, CD-2786
- Amazon Basics 1/3-Cut Tab, Assorted Positions File Folders, Letter Size, Manila - Pack of 100

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**Shop now:** [https://www.desertcart.co.th/products/474669680-calculator-extra-large-display-accounting-big-button-12-digits-desktop](https://www.desertcart.co.th/products/474669680-calculator-extra-large-display-accounting-big-button-12-digits-desktop)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-21*