# Monocular Microscope Deltaoptical DO-3401 with Rechargeable Battery

**URL:** https://aio.lv/en/product--deltaoptical-do-3401--11370896
**Data updated:** 2026-03-17 20:26 (EET)
**Category:** Microscopes
**Manufacturer:** Deltaoptical
**Manufacturer code:** DO-3401
**EAN:** 5901691634015
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 323.49 €
**Prices and availability valid until:** 2026-07-09 23:59
**Price without VAT (21%):** 267.35 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--deltaoptical-do-3401--11370896

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.06.2026 | free |
| Pickup points | 22.06.2026 | 1.99 EUR |
| Courier delivery to door | 22.06.2026 | 4.99 EUR |

## Summary description

Deltaoptical DO-3401 is a monocular microscope equipped with a rechargeable battery for portable use. Designed for observing biological samples and educational tasks, it features a single eyepiece optical system and battery-powered illumination for fieldwork or locations without mains power. Practical for students, hobbyists and professionals needing a compact, mobile microscope solution.

## Long description

Deltaoptical DO-3401 is a monocular microscope with a built-in rechargeable battery designed for portable observation of biological samples and educational tasks. The single-eyepiece optical layout and battery-powered illumination allow use away from mains power, making the instrument suitable for fieldwork, classrooms, laboratory demonstrations and hobby applications where mobility and compactness are required.
Advantages
The monocular design provides a straightforward optical path and easy visual alignment for quick examinations. Rechargeable battery operation enables continuous use without dependence on external power sources and simplifies transport and setup in remote locations. The instrument is compact and intended for users who need a lightweight, mobile microscope for routine sample observation, demonstration and basic laboratory work.
Suitable for
Educational demonstrations and classroom microscopy
Fieldwork and on-site sample inspection
Hobbyist and amateur biological observation
Basic laboratory checks and quick sample screening
Key specifications
Optical configuration: monocular (single eyepiece)
Power supply: built-in rechargeable battery for portable illumination
Intended use: observation of biological samples and educational tasks
Design: compact and mobile form factor suitable for transport
How to use
Set the microscope on a stable, level surface and insert the prepared slide on the stage. Switch on the built-in illumination using the power control and adjust battery-powered light intensity if available. Use the coarse and fine focusing controls to bring the specimen into clear view through the single eyepiece. Change magnification by rotating the objective (if multiple objectives are fitted) or by replacing the slide preparation as required. Recharge the internal battery according to the manufacturer’s instructions before extended field use.
Usage recommendations
Use clean, appropriately mounted slides and handle optical surfaces carefully to maintain image quality. Charge the rechargeable battery fully before taking the microscope into the field and carry spare slides or sample containers. For classroom use, provide basic instruction on focusing and safe handling to ensure consistent results and to protect the instrument.

## FAQ

### How much does the Monocular Microscope Deltaoptical DO-3401 cost, and is it available for purchase?

The price is 323.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 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 17.06.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Monocular Microscope Deltaoptical DO-3401 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 Deltaoptical 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 Deltaoptical 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/11370896/65858273_large.webp