# Desktop calculator Donau TECH K-DT4125-09, 12-digit display, dimensions 156×152×28 mm, white

**URL:** https://aio.lv/en/product--donau-k-dt4125-09--11799791
**Data updated:** 2026-03-09 07:36 (EET)
**Category:** Calculators
**Manufacturer:** Donau
**Manufacturer code:** K-DT4125-09
**EAN:** 5901503615904
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 14.99 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 12.39 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--donau-k-dt4125-09--11799791

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.07.2026 | free |
| Pickup points | 22.07.2026 | 1.89 EUR |
| Courier delivery to door | 22.07.2026 | 4.99 EUR |

## Summary description

Donau TECH desktop calculator K-DT4125-09 is a white office calculator with a 12-digit display and compact dimensions of 156×152×28 mm. Designed for basic arithmetic, accounting and invoicing tasks, it provides clear numeric output and a standard key layout for daily office use. Suitable for small businesses, clerical work and home accounting.

## Long description

Donau TECH K-DT4125-09 is a desktop calculator in white with a 12-digit display and compact dimensions of 156×152×28 mm. It is designed for everyday office calculations, accounting and invoicing tasks, offering a clear numeric readout and a conventional key layout that supports basic arithmetic operations. The calculator's size and neutral color make it suitable for placement on desks in small offices, reception areas or home workspaces.
Advantages
The Donau TECH K-DT4125-09 provides a large 12-digit display for easy viewing of multi-digit results and simple numeric alignment. Its compact footprint balances visibility and space savings on the desktop. The standard key arrangement and tactile keys support quick entry of numbers and common functions, reducing input errors during repetitive calculations. A durable casing in white offers a neutral aesthetic that integrates with most office environments.
Suitable for
 Basic arithmetic tasks such as addition, subtraction, multiplication and division
 Daily bookkeeping and invoice calculations for small businesses
 Clerical data entry and quick numeric checks at reception or point of sale
 Home accounting, budgeting and personal finance calculations
Key specifications
 Display: 12 digits for extended numeric output
 Dimensions: 156 × 152 × 28 mm for compact desktop placement
 Color: white casing suitable for standard office interiors
 Key layout: conventional numeric keypad with function keys for common operations
 Power: designed for desktop use (battery/solar details not declared)
How to use
Place the calculator on a flat surface within comfortable reach and ensure the display faces the user. Enter numbers using the numeric keypad and perform operations using the corresponding function keys. For multi-step calculations, use the memory and clear functions as needed to retain intermediate results or reset the current entry. Use the calculator for routine tasks such as totaling invoices, verifying sums and checking simple calculations during data entry.
Usage recommendations
To maintain accurate performance, keep the keypad and display free of dust and liquids; store the device in a dry environment when not in use. For frequent desktop use, position the calculator to minimize glare on the display and allow comfortable wrist angle to reduce input errors.

## FAQ

### How much does the Donau TECH K-DT4125-09 desktop calculator cost, and is it available for purchase?

The price is 14.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 5386 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 17.07.2026 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/11799791/67201166_large.webp