# Presence and twilight sensor Steinel HALLWAY KNX V3.5 surface-mounted IP20 square white

**URL:** https://aio.lv/en/product--steinel-st079079--11863572
**Data updated:** 2026-03-09 17:40 (EET)
**Category:** Smart Sensors
**Manufacturer:** Steinel
**Manufacturer code:** ST079079
**EAN:** 4007841079079
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 249.99 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 206.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--steinel-st079079--11863572

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Steinel HALLWAY KNX V3.5 is a surface-mounted presence and twilight sensor in a square white housing with IP20 protection. Designed for KNX systems, it detects motion and ambient light to control lighting automatically. Suitable for corridors, stairwells and entrance areas where integrated presence detection and dusk sensing are required for energy-efficient lighting control.

## Long description

The Steinel HALLWAY KNX V3.5 surface-mounted IP20 square white is a presence and twilight sensor designed for integration with KNX building automation systems. Housed in a compact square white enclosure with IP20 protection, the sensor monitors motion and ambient light levels to enable automatic, energy-conscious control of corridor, stairwell and entrance lighting. It is configured to operate as a detection and dusk sensor in spaces where reliable presence recognition and light-dependent switching are required.
Advantages
This presence and twilight sensor offers reliable motion detection combined with ambient light measurement to reduce unnecessary lighting. Its surface-mounted square design simplifies installation on ceilings or walls where recessed mounting is not feasible. Built for KNX compatibility, the unit transmits presence and brightness information to the building control system for centralized, programmable lighting control. The IP20 rating makes it suitable for dry indoor environments commonly found in hallways and staircases.
Suitable for
 Corridors and hallways in residential or commercial buildings
 Stairwells and landings
 Building entrance areas and foyers
 Areas requiring automatic dusk/dawn switching and presence-based control
Key specifications
 Function: presence detection and ambient light (twilight) sensing
 Mounting type: surface-mounted
 Shape and color: square housing, white finish
 Protection class: IP20 suitable for indoor dry locations
 Integration: designed for KNX building automation systems
How to use
Mount the sensor on a suitable flat surface such as a ceiling or high wall in the area to be monitored, ensuring an unobstructed detection field and stable ambient light measurement. Connect the device to the KNX bus following KNX wiring and commissioning procedures, and configure presence and brightness parameters within the KNX environment to match the specific application. Use the KNX programming tools to set detection sensitivity, time delays and light threshold values so that lighting responds appropriately to motion and ambient light conditions.
Usage recommendations
Place the sensor centrally relative to the monitored area for optimal coverage, avoid pointing the detection zone toward large heat sources or direct sunlight, and set light threshold and timing parameters to balance energy savings with user comfort. For stairwells and corridors, configure delayed switch-off times to ensure safe movement while minimizing idle lighting.

## FAQ

### How much does the Steinel HALLWAY KNX V3.5 presence & twilight sensor cost, and is it available for purchase?

The price is 249.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 14.07.2026 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 Steinel HALLWAY KNX V3.5 presence & twilight sensor 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 Steinel 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 Steinel 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/11863572/67262167_large.webp