# Letterbox VIDOS S551-SKM integrated video intercom unit for building entry control

**URL:** https://aio.lv/en/product--vidos-s551-skm--11262053
**Data updated:** 2026-03-07 19:55 (EET)
**Category:** Control Systems
**Manufacturer:** VIDOS
**Manufacturer code:** S551-SKM
**EAN:** 5907281202626
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 487.99 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 403.30 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--vidos-s551-skm--11262053

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.99 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

VIDOS S551-SKM is an integrated video intercom letterbox unit designed for building entry control. The device combines a letterbox function with a video intercom module, intended for monitoring and communication at entrances. Suitable for residential or small commercial installations where mail collection and visitor verification are required.

## Long description

VIDOS S551-SKM integrated video intercom unit for building entry control combines a secure letterbox with a video intercom module to provide mail collection and visitor verification at entrances. The unit integrates optics and audio communication with a mail-receiving compartment designed for residential and small commercial entryways. The compact design fits surface-mounted or recessed installations depending on site preparation and allows staff or residents to confirm visitors visually before granting access.
Advantages
The VIDOS S551-SKM unit streamlines entry management by combining mail collection and video communication in a single device, saving space and reducing the need for separate components. Built for everyday operation at building entrances, the construction supports visual monitoring and two-way audio, enabling clear identification of visitors. The integrated letterbox improves convenience for occupants while keeping mail secured until retrieval.
Suitable for
 Residential apartment building entrances
 Small office or commercial entryways
 Ground-floor mail and visitor control points
 Renovation projects where combined mail and intercom functionality is desired
Key specifications
 Combination of letterbox slot and video intercom module for entry control
 Two-way audio communication for visitor verification
 Integrated camera for visual monitoring at the entrance
 Durable enclosure suitable for outdoor installation at doorways
 Compact form factor designed for surface or recessed mounting options
How to use
Install the VIDOS S551-SKM unit at the building entrance according to mounting recommendations and connect it to the building’s intercom or control system following the manufacturer’s wiring diagram. When a visitor arrives, use the intercom function to open audio communication and view the live video feed to verify identity. Mail is deposited through the letterbox slot and retrieved from the internal compartment by authorized occupants. Routine checks of camera alignment and audio clarity help maintain reliable operation.
Usage recommendations
Position the unit at a height and location that ensures clear camera sightlines and convenient mail access. Protect the installation area from direct water exposure and ensure electrical connections are installed by a qualified technician. Periodically clean the camera lens and letterbox opening to prevent obstruction and ensure consistent performance.

## FAQ

### How much does the VIDOS S551-SKM video intercom letterbox unit cost, and is it available for purchase?

The price is 487.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 09.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can VIDOS S551-SKM video intercom letterbox unit 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 VIDOS 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 VIDOS 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/11262053/62184772_large.webp