# Desktop calculator Donau DONAU TECH K-DT4127-01 — 12-digit display, 203×158×31 mm, black

**URL:** https://aio.lv/en/product--donau-k-dt4127-01--11799864
**Data updated:** 2026-03-09 07:36 (EET)
**Category:** Calculators
**Manufacturer:** Donau
**Manufacturer code:** K-DT4127-01
**EAN:** 5901503615966
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 19.49 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 16.11 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--donau-k-dt4127-01--11799864

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Donau DONAU TECH K-DT4127-01 is a desktop office calculator with a 12-digit display and dimensions 203×158×31 mm in black. It provides standard arithmetic functions suited for everyday accounting, invoicing and bookkeeping tasks. The calculator’s large display and desktop form factor make it practical for office desks and point-of-sale use.

## Long description

The Donau DONAU TECH K-DT4127-01 is a desktop office calculator with a 12-digit display and a compact footprint of 203×158×31 mm in a black finish. Designed for everyday arithmetic tasks, it offers the basic functions needed for accounting, invoicing and bookkeeping on a desktop or at a point of sale. The large, clear 12-digit screen improves readability for multi-digit totals and simple calculations, while the desktop form factor keeps the keypad and display stable during use.
Advantages
The calculator combines a spacious numeric keypad with a high-contrast 12-digit display to reduce entry errors and speed up routine calculations. Its desktop size provides a stable work surface and comfortable key spacing for prolonged use. The black casing is durable and fits into typical office environments without drawing attention. The device focuses on core arithmetic operations, offering reliable performance for standard accounting tasks.
Suitable for
Everyday bookkeeping and ledger entries
Invoice total checks and arithmetic verification
Point-of-sale and checkout work where quick numeric input is required
Office desks where a stable, easy-to-read calculator is needed
Key specifications
Display: 12-digit numeric display for multi-digit results
Dimensions: 203 × 158 × 31 mm for desktop placement
Color: black housing suitable for office settings
Functions: standard arithmetic operations (addition, subtraction, multiplication, division) and common calculation features for accounting
Form factor: desktop calculator with integrated keypad and display
How to use
Place the calculator on a flat desktop surface for stable use. Use the numeric keypad to enter figures and press the arithmetic operation keys to perform calculations. Read results on the 12-digit display; for totals exceeding single-line capacity, verify numbers by breaking calculations into parts if necessary. The device is intended for standard arithmetic workflows such as summing columns of numbers, checking invoice totals, and performing basic financial computations.
Usage recommendations
To maintain accurate operation, keep the keypad and display clean and avoid exposure to liquids or excessive heat. For repeated heavy use, allow short breaks to prevent key wear and ensure continued ease of entry. Position the calculator near primary work items to reduce keystroke errors and to streamline common accounting tasks.

## FAQ

### How much does the Donau DONAU TECH K-DT4127-01 desktop calculator cost, and is it available for purchase?

The price is 19.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 4866 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 15.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Donau products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Donau service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11799864/67201255_large.webp