# TFS-Dialog 400 Intercom Auerswald

**URL:** https://aio.lv/en/product--auerswald-90167--1510902
**Data updated:** 2025-12-29 07:40 (EET)
**Category:** Control Systems
**Manufacturer:** Auerswald
**Manufacturer code:** 90167
**EAN:** 4019377901670
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 492.99 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 407.43 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--auerswald-90167--1510902

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

The Auerswald TFS-Dialog 400 is a white intercom featuring CE certification and an IP44 protection rating. Made from durable glass and plastic, it measures 140 mm in width, 28 mm in depth, and 220 mm in height. This intercom is designed for reliable outdoor use, ensuring clear communication in various weather conditions.

## Long description

The Auerswald TFS-Dialog 400 intercom is an ultra-flat, surface-mounted door station designed for analogue extension (a/b) inputs of telephone systems. Constructed from safety glass and plastic with IP44 protection and CE certification, it provides outdoor-capable communication and control while fitting systems from Auerswald and other manufacturers, including AVM Fritz!Box and Alcatel/Avaya/Unify systems. The unit measures 140 mm × 28 mm × 220 mm and includes energy-efficient LED illumination and multiple relay contacts for door control functions.
Advantages
The TFS-Dialog 400 supports simple integration into existing telephone systems and benefits from a ready-made template when used with Auerswald ICT systems. Configuration is performed via a smartphone app (Android and iOS) for quick programming of phone numbers, functions and the number of call buttons. Its illuminated sensor field replaces mechanical keys, is operable with gloved or bare fingers, and includes a numeric code lock (4–8 digits) for keyless access. Additional relay contacts, indirect ambient lighting and selectable sensitivity settings make the unit adaptable to different installation environments. The device’s slim profile is achieved despite a 6 mm safety glass front that resists scratches and breakage.
Suitable for
Surface-mounted installations on residential or commercial entrances
Integration with analogue a/b ports of ICT systems and consumer routers (e.g., Fritz!Box)
Sites requiring keyless access via numeric codes
Installations needing additional relay-controlled functions (door opener, hallway light, extra bell)
Key specifications
Brand: Auerswald, Model: TFS-Dialog 400 (MPN 90167, EAN 4019377901670)
Dimensions: 140 mm (W) × 28 mm (D) × 220 mm (H)
Protection class: IP44; Certification: CE
Material: safety glass front (6 mm) and plastic housing
Connection: analogue a/b port compatibility
Lighting: indirect rear white LEDs (requires additional bell transformer)
Controls: illuminated sensor field, numeric code lock (4–8 digits)
Extras: three relay contacts; optional Auerswald a/b switch module supported
How to use
Install the TFS-Dialog 400 as a surface-mounted unit and connect it to an analogue a/b port of your telephone system or compatible router. If using an Auerswald ICT system, load the provided template to simplify setup. Configure phone numbers, call-button assignments and other functions with the Auerswald smartphone app (Android or iOS) and transfer settings to the intercom. If you require ambient lighting or additional bell functions, connect a suitable bell transformer and any door contact sensors or relay-driven devices (e.g., door opener). Select the appropriate sensitivity level on the device for noisy or quiet environments.
Usage recommendations
For reliable operation, mount the unit in a sheltered position where possible, use the app to back up configuration after programming, and install a door contact to enable the intelligent "door open" detection that stops incoming calls when access is granted.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.68 kg |
| Certification | CE |
| Operating temperature (T-T) | -20 - 50 |
| Height | 220 mm |
| Width | 140 mm |
| Depth | 28 mm |
| Product colour | White |
| Speakerphone | Yes |
| Housing material | Glass, Plastic |
| International Protection (IP) code | IP44 |

## FAQ

### How much does the TFS-Dialog 400 Intercom Auerswald cost, and is it available for purchase?

The price is 492.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 9 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 03.07.2026 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 TFS-Dialog 400 Intercom Auerswald 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 Auerswald 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 Auerswald 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/1510902/54659989_large.webp