# Desktop calculator Donau DONAU TECH K-DT4122-01, 12-digit display, 136×134×28 mm, black

**URL:** https://aio.lv/en/product--donau-k-dt4122-01--11799779
**Data updated:** 2026-03-09 07:36 (EET)
**Category:** Calculators
**Manufacturer:** Donau
**Manufacturer code:** K-DT4122-01
**EAN:** 5901503615720
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 15.99 €
**Prices and availability valid until:** 2026-07-25 23:59
**Price without VAT (21%):** 13.21 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--donau-k-dt4122-01--11799779

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

Donau DONAU TECH K-DT4122-01 is a desktop office calculator with a 12-digit display, sized 136×134×28 mm and finished in black. It provides basic arithmetic functions for everyday accounting, invoicing and bookkeeping tasks. Compact footprint fits office desks and POS counters; suitable for quick calculations, summaries and routine financial checks.

## Long description

Donau DONAU TECH K-DT4122-01 is a compact desktop calculator designed for everyday office arithmetic. It features a 12-digit display and a slim footprint of 136×134×28 mm in a black finish, offering clear numeric readout and straightforward operation for basic accounting, invoicing and bookkeeping tasks. The calculator is intended to sit on desks or point-of-sale counters where quick calculations and routine financial checks are required.
Advantages
The calculator combines a large 12-digit display with a compact housing to balance readability and space efficiency. Its simple keypad layout supports standard arithmetic operations, percent and memory functions needed for routine office calculations. The black casing provides a neutral appearance suitable for a range of work environments, while the compact dimensions make it easy to position without occupying much desk area.
Suitable for
Everyday arithmetic and basic bookkeeping
Invoicing calculations and price checks at POS counters
Quick summaries, totals and percent calculations for office use
Home office tasks that require a dedicated, easy-to-read calculator
Key specifications
Display: 12 digits for clear numeric output
Dimensions: 136 × 134 × 28 mm (width × depth × height)
Color: black housing
Functions: basic arithmetic with percent and memory capabilities
Form factor: desktop calculator suitable for desk or counter placement
How to use
Place the Donau K-DT4122-01 on a flat surface near your work area or point-of-sale station. Use the keypad to enter numbers and perform operations with the standard arithmetic keys. Employ the percent and memory keys to calculate discounts, markups or running totals as required. Turn the calculator off or leave it in standby according to your usage routine to conserve power where applicable.
Usage recommendations
For reliable daily use, keep the calculator on a stable, dry surface and avoid exposure to liquids or extreme temperatures. Clean the keys and casing with a soft, dry cloth; do not use abrasive cleaners. For frequent point-of-sale use, position the device within easy reach to speed up common calculations and reduce desk clutter.

## FAQ

### How much does the Desktop calculator Donau DONAU TECH K-DT4122-01 cost, and is it available for purchase?

The price is 15.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 3441 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 13.07.2026 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/11799779/67201150_large.webp