# Desktop calculator Donau K-DT4121-18 12-digit display, dimensions 190×143×40 mm, blue

**URL:** https://aio.lv/en/product--donau-k-dt4121-18--11799775
**Data updated:** 2026-03-09 07:36 (EET)
**Category:** Calculators
**Manufacturer:** Donau
**Manufacturer code:** K-DT4121-18
**EAN:** 5901498132967
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 16.49 €
**Prices and availability valid until:** 2026-07-25 23:59
**Price without VAT (21%):** 13.63 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--donau-k-dt4121-18--11799775

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Donau desktop calculator K-DT4121-18 features a 12-digit display and compact housing sized 190×143×40 mm. Designed for basic office and accounting tasks, it provides numeric entry, arithmetic operations and quick calculations on a stable tabletop unit. Its blue casing makes it suitable for business desks, reception areas and retail points of sale.

## Long description

Donau desktop calculator K-DT4121-18 is a compact, table-top calculator with a 12-digit display and a blue casing. With dimensions of 190×143×40 mm it is designed to occupy minimal space on an office desk while offering clear numeric visibility for everyday calculations. The unit supports basic arithmetic functions and numeric entry, providing a stable base for routine accounting and administrative tasks.
Advantages
The calculator combines a 12-digit display with a compact housing to balance readability and space efficiency. Its stable construction and tactile keys are suited for frequent numeric input. The blue finish offers a discreet yet professional appearance suitable for business environments. The device operates without complex setup and is ready for immediate use on a tabletop.
Suitable for
Basic accounting and bookkeeping tasks
Invoice and receipt verification at points of sale
Office desktop use for administration and data entry
Reception desks and customer service counters
Key specifications
Display: 12-digit numeric display for extended values
Dimensions: 190 × 143 × 40 mm for compact desktop placement
Housing color: blue, suitable for professional settings
Functionality: basic arithmetic operations and numeric entry
Form factor: stable tabletop unit designed for frequent use
How to use
Place the calculator on a flat, stable tabletop surface within easy reach. Use the numeric keypad for entering figures and the arithmetic keys to perform addition, subtraction, multiplication and division. Clear entries with the designated clear key and check results on the 12-digit display. The unit requires minimal configuration—simply power it on according to the manufacturer’s instructions and start entering numbers.
Usage recommendations
For reliable long-term use, avoid exposing the calculator to liquids and extreme temperatures, and keep the keypad free of dust. Position the device so the display is easily readable from your normal working posture and use regular cleaning with a dry, soft cloth to maintain visibility and key responsiveness.

## FAQ

### How much does the Donau K-DT4121-18 desktop calculator 12-digit cost, and is it available for purchase?

The price is 16.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2083 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 14.07.2026 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/11799775/67201146_large.webp