# Light sensor Steinel Light Sensor Dual DALI2 AP square — Steinel ST057411

**URL:** https://aio.lv/en/product--steinel-st057411--11083833
**Data updated:** 2026-03-07 18:14 (EET)
**Category:** Sensors & Detectors
**Manufacturer:** Steinel
**Manufacturer code:** ST057411
**EAN:** 4007841057411
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 101.49 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 83.88 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--steinel-st057411--11083833

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Steinel Light Sensor Dual DALI2 AP (model ST057411) is a square light sensor designed for integration with DALI-2 lighting control systems. It measures ambient light levels and provides input for automated daylight-based control and dimming via DALI-2. Suitable for indoor installations where daylight harvesting, energy savings and automated lighting scenes are required.

## Long description

The Steinel Light Sensor Dual DALI2 AP square is a compact ceiling- or panel-mount ambient light sensor designed for integration with DALI-2 lighting control systems. It measures real-time illuminance and supplies an input signal for daylight harvesting and automatic dimming in interiors. The sensor's square design and low-profile housing make it suitable for discreet installation in offices, corridors, classrooms and commercial spaces where automated, energy-efficient lighting control is required.
Advantages
This light sensor offers accurate ambient light measurement compatible with DALI-2 control architectures, enabling smooth daylight-dependent dimming and scene control. The square, flush-mount form factor simplifies installation in modular ceilings or panels while maintaining a minimal visual footprint. Designed for indoor use, it supports energy savings by reducing artificial lighting when sufficient daylight is present and contributes to compliance with lighting control strategies in modern buildings.
Suitable for
 Daylight harvesting and automatic dimming in open-plan offices
 Corridors, stairwells and circulation areas requiring constant light-level control
 Classrooms, meeting rooms and training areas with variable daylight
 Commercial interiors and retail spaces integrated with DALI-2 systems
Key specifications
 Sensing function: ambient light (illuminance) measurement for control input
 Control compatibility: DALI-2 system integration for dimming and scene control
 Form factor: square, low-profile housing suitable for ceiling or panel mounting
 Installation location: indoor use for offices, classrooms and commercial spaces
 Output behavior: provides signal for automated daylight-dependent dimming and scene adjustments
How to use
Mount the sensor in a suitable indoor ceiling or panel location where it has a clear view of ambient light without obstruction from luminaires or interior fittings. Connect the device to the DALI-2 lighting network following the system wiring and addressing procedures. Configure the sensor parameters and DALI-2 control scenes through the building control software or DALI gateway to set target illuminance levels, dimming response and priority settings. After commissioning, verify that the sensor responds to changing daylight and that dimming curves meet the required comfort and energy targets.
Usage recommendations
Position the sensor away from direct glare or localized artificial light sources to ensure accurate ambient light readings. During commissioning, calibrate target lux levels for the intended use areas and test transitions between daylight and electric lighting to avoid abrupt changes in brightness.

## FAQ

### How much does the Light sensor Steinel Light Sensor Dual DALI2 AP cost, and is it available for purchase?

The price is 101.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 25 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 06.07.2026 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 Light sensor Steinel Light Sensor Dual DALI2 AP 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/11083833/61759973_large.webp