# Steinel True Presence® COM1 UP ceiling-mounted presence detector, model ST057923

**URL:** https://aio.lv/en/product--steinel-st057923--11863799
**Data updated:** 2026-03-09 17:40 (EET)
**Category:** Smart Sensors
**Manufacturer:** Steinel
**Manufacturer code:** ST057923
**EAN:** 4007841057923
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 221.49 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 183.05 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--steinel-st057923--11863799

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 20.07.2026 | free |
| Pickup points | 23.07.2026 | 1.89 EUR |
| Courier delivery to door | 23.07.2026 | 4.99 EUR |

## Summary description

Ceiling-mounted Steinel True Presence® COM1 UP presence detector (model ST057923) detects and distinguishes human presence for lighting and HVAC control. Designed for installation in ceilings, it uses True Presence® technology to reliably sense micro-movements and breathing. Suitable for offices, corridors, meeting rooms and residential areas where accurate occupancy detection is required.

## Long description

The Steinel True Presence® COM1 UP ceiling-mounted presence detector (model ST057923) is designed for accurate detection of human presence in indoor spaces. Installed flush in ceilings, it uses True Presence® sensing to detect micro-movements and breathing, enabling reliable differentiation between actual human presence and other motion sources. The unit is intended for control of lighting and HVAC systems where precise occupancy information improves comfort and energy efficiency.
Advantages
The device provides high sensitivity to very small movements and stationary occupancy through advanced sensing algorithms, reducing false triggers from non-human motion. Its ceiling-mounted design offers unobtrusive installation with a wide detection area and consistent coverage. Integration capability with lighting and ventilation systems supports automated control and energy savings without manual intervention.
Suitable for
Office spaces and open-plan work areas
Corridors and stairwells
Meeting and conference rooms
Residential communal areas and hallways
Key specifications
Mounting type: recessed ceiling installation
Detection technology: True Presence® micro-movement and breathing detection
Detection coverage: wide-area ceiling coverage suitable for typical room heights
Output: interfaces for lighting and HVAC control (integration-ready)
Operation: automatic presence detection for occupied/unoccupied switching
Installation: designed for fixed ceiling mounting with discreet appearance
How to use
Install the detector flush into a suitable ceiling opening at the recommended central position for optimal coverage. Connect the device to the building’s lighting and HVAC control circuits according to the installation guidelines and wiring standards. Configure sensitivity and time delay settings as required for the specific space to ensure reliable detection of stationary occupants while avoiding unwanted switching. After commissioning, verify coverage by walking and remaining stationary in typical positions to confirm detection and correct integration with the control systems.
Usage recommendations
Position the sensor centrally in the monitored room and avoid mounting near large heat sources or direct air vents that can affect detection. Adjust sensitivity and time delay to match the activity level of the space—for example, higher sensitivity and longer hold times in meeting rooms to detect stationary occupants. Regularly inspect mounting and wiring during maintenance checks to ensure continued reliable operation.

## FAQ

### How much does the Steinel True Presence COM1 UP presence detector ST057923 cost, and is it available for purchase?

The price is 221.49 € (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 20.07.2026 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 True Presence COM1 UP presence detector ST057923 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/11863799/67262484_large.webp