# Desktop calculator Donau DONAU TECH K-DT4126-09 — 12-digit display, dimensions 156×152×28 mm, white

**URL:** https://aio.lv/en/product--donau-k-dt4126-09--11799794
**Data updated:** 2026-03-09 07:36 (EET)
**Category:** Calculators
**Manufacturer:** Donau
**Manufacturer code:** K-DT4126-09
**EAN:** 5901503615935
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 15.49 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 12.80 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--donau-k-dt4126-09--11799794

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

Donau DONAU TECH K-DT4126-09 is a desktop office calculator with a 12-digit display and compact footprint (156×152×28 mm) in white. Designed for everyday arithmetic, accounting and billing tasks, it provides clear numeric visibility and simple operation for sums, percentages and basic functions. Suitable for office desks, reception points and home accounting.

## Long description

Donau DONAU TECH K-DT4126-09 is a desktop office calculator with a 12-digit display and a compact footprint of 156×152×28 mm in white. It is designed for everyday arithmetic, accounting and billing tasks and offers clear numeric visibility together with straightforward controls. The calculator supports basic functions such as addition, subtraction, multiplication, division and percentage calculations, making it suitable for routine office work and simple financial operations.
Advantages
The model combines a large 12-digit LCD for easy reading of long numbers with a stable desktop design that fits small workspaces. Its compact dimensions and lightweight construction allow placement on desks, reception counters or home workstations without occupying much area. The device provides direct access to common arithmetic functions and percentage operations, ensuring quick input and reliable results during everyday calculations.
Suitable for
Office desks and administrative workstations
Reception areas and point-of-sale counters for basic billing
Home budgeting, personal accounting and expense tracking
Schools and training environments for arithmetic practice
Key specifications
Display: 12-digit LCD with clear numeric visibility
Dimensions: 156 × 152 × 28 mm (compact desktop footprint)
Color: white housing
Functions: addition, subtraction, multiplication, division, percentage calculations
Keyboard: tactile keys for direct numeric and function entry
Power: battery and/or solar hybrid operation (typical for desktop calculators)
How to use
Place the calculator on a flat, stable surface near your workspace and orient the display for best visibility. Enter numbers and operations using the numeric keypad and function keys; use the percentage key for percent-based calculations and the clear key to reset entries. For routine billing or accounting tasks, perform calculations step by step and verify results on the 12-digit display before recording or printing figures in your documents.
Usage recommendations
Keep the calculator away from liquids and excessive heat. Replace batteries according to the manufacturer’s guidance and ensure the solar cell receives adequate light for hybrid operation. Clean the housing and keys with a soft, dry cloth; avoid abrasive cleaners. For accurate record-keeping, double-check large figures on the 12-digit display before finalizing invoices or reports.

## FAQ

### How much does the Desktop calculator Donau DONAU TECH K-DT4126-09 cost, and is it available for purchase?

The price is 15.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3751 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 16.07.2026 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/11799794/67201169_large.webp