# Desktop calculator Donau TECH K-DT4129-38 — 12-digit display, metal housing, 210×154×34 mm, silver

**URL:** https://aio.lv/en/product--donau-k-dt4129-38--11799833
**Data updated:** 2026-03-09 07:36 (EET)
**Category:** Calculators
**Manufacturer:** Donau
**Manufacturer code:** K-DT4129-38
**EAN:** 5901503616055
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 20.49 €
**Prices and availability valid until:** 2026-07-31 23:59
**Price without VAT (21%):** 16.93 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--donau-k-dt4129-38--11799833

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 21.07.2026 | free |
| Pickup points | 24.07.2026 | 1.89 EUR |
| Courier delivery to door | 24.07.2026 | 4.99 EUR |

## Summary description

Donau TECH desktop calculator K-DT4129-38 features a 12-digit display and sturdy metal housing in silver. With dimensions of 210×154×34 mm, it is designed for office and bookkeeping tasks requiring clear numeric readout and durable construction. Suitable for daily arithmetic, accounting entries and simple financial calculations.

## Long description

The Donau TECH K-DT4129-38 desktop calculator combines a 12-digit LCD display with a metal housing in silver and a compact footprint of 210×154×34 mm. Designed for office and bookkeeping environments, it offers clear numeric readout and a durable construction that fits on desktops, in accounting workspaces, or at cashier stations. The layout supports basic arithmetic operations and simple financial calculations needed in daily administrative tasks.
Advantages
The metal housing provides increased durability and a stable base for frequent use, while the 12-digit display shows large, legible numbers for multi-digit calculations. Its size balances visibility and desktop space efficiency, and the straightforward key layout reduces input errors. The silver finish complements professional office settings and is easy to clean and maintain.
Suitable for
Daily arithmetic and bookkeeping entries
Basic financial calculations and budgeting tasks
Office desks, accounting workstations and reception counters
Small businesses and home offices that require a robust, easy-to-read calculator
Key specifications
Display: 12-digit LCD with clear numeric readout
Housing material: metal for improved durability
Finish: silver
Dimensions: 210 × 154 × 34 mm (length × width × height)
Functionality: basic arithmetic operations suitable for accounting and administrative use
Keyboard layout: full-size keys for numeric input and common functions
How to use
Place the calculator on a flat, stable surface and position it so the display is easily visible. Use the numeric keys and operation keys to enter figures and perform addition, subtraction, multiplication and division. For routine bookkeeping, enter transaction values and confirm results with the equals key. Switch the device on according to the manufacturer’s instructions and power it down when not in use to extend its service life. Clean the metal housing with a soft, dry or slightly damp cloth; avoid abrasive cleaners.
Usage recommendations
For reliable daily performance, keep the calculator on a stable desktop and protect it from prolonged exposure to moisture or direct sunlight. When transporting, place it in a protective sleeve to prevent dents to the metal housing and preserve the legibility of the display.

## FAQ

### How much does the Donau TECH K-DT4129-38 desktop calculator cost, and is it available for purchase?

The price is 20.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 21.07.2026 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/11799833/67201215_large.webp