# Presence detector Siemens KNX 5WG1258 with integrated brightness sensor

**URL:** https://aio.lv/en/product--siemens-5wg12582eb22--1503248
**Data updated:** 2026-02-12 09:42 (EET)
**Category:** Smart Sensors
**Manufacturer:** Siemens
**Manufacturer code:** 5WG12582EB22
**EAN:** 7612914097712
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 144.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 119.83 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-5wg12582eb22--1503248

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.99 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

Siemens KNX presence detector 5WG1258 combines motion detection with an integrated brightness sensor for building automation. Designed for KNX systems, it detects occupancy and measures ambient light to control lighting scenes and energy-saving functions. Suitable for offices, corridors and meeting rooms, it helps automate lighting based on presence and daylight levels.

## Long description

The Siemens KNX presence detector 5WG1258 with integrated brightness sensor is a wall-mounted device for KNX building automation that combines passive infrared motion detection with ambient light measurement. It monitors occupancy and daylight levels to enable automatic control of lighting and energy-saving functions. Designed for professional installations, this presence detector is suitable for offices, corridors and meeting rooms where reliable presence detection and light-dependent control are required.
Advantages
The device integrates motion detection and a brightness sensor in a single unit, reducing the need for separate components and simplifying wiring. Its compatibility with KNX systems allows flexible configuration and scene integration within building automation networks. The presence detector provides stable detection performance across typical indoor environments and supports energy-efficient lighting control based on measured ambient light and occupancy.
Suitable for
Office spaces and open-plan work areas
Corridors and circulation zones in commercial buildings
Meeting rooms and conference areas
Areas requiring light-dependent switching and presence-based control
Key specifications
Detection method: passive infrared (PIR) motion detection
Integrated brightness sensor for ambient light measurement
Designed for KNX building automation systems
Wall-mounted installation
How to use
Install the presence detector at the recommended height and position to ensure optimal coverage of the monitored area. Connect the device to the KNX bus and configure detection parameters, time delays and brightness thresholds using a KNX programming tool. Use the device within the KNX project to trigger lighting scenes, switch circuits or adjust dimming levels based on presence and ambient light measurements.
Usage recommendations
Position the detector to avoid direct exposure to large windows or heat sources that can affect detection or light measurement. Calibrate brightness thresholds to local daylight conditions and test detection zones after installation to ensure reliable operation. For optimal energy savings, combine presence-based control with timed scenes and daylight harvesting strategies within the KNX system.

## FAQ

### How much does the Siemens KNX presence detector 5WG1258 cost, and is it available for purchase?

The price is 144.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 14 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 23.07.2026 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. 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 Siemens 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 Siemens 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

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