# Motion detector SATEL TOPAZ miniaturized PIR sensor model TOPAZ (3901)

**URL:** https://aio.lv/en/product--satel-topaz--11863629
**Data updated:** 2026-03-09 17:40 (EET)
**Category:** Smart Sensors
**Manufacturer:** SATEL
**Manufacturer code:** TOPAZ
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 16.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 13.63 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--satel-topaz--11863629

## 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

Miniaturized PIR motion detector SATEL TOPAZ (model 3901) is a passive infrared sensor designed to detect human presence and movement. As a compact motion sensor from SATEL, it is intended for indoor security applications, perimeter detection inside buildings, and integration with alarm systems. The unit provides basic motion sensing functionality in a small form factor for discreet installation.

## Long description

Miniaturized PIR motion detector SATEL TOPAZ (model 3901) is a compact passive infrared sensor designed to detect human presence and movement indoors. Intended for integration with alarm systems, the TOPAZ sensor provides straightforward motion detection in a small form factor that supports discreet installation in homes, offices, and other interior spaces. The device monitors changes in infrared radiation caused by moving heat sources and outputs a detection signal suitable for security control panels.
Advantages
The SATEL TOPAZ miniaturized PIR sensor combines a small mechanical footprint with reliable passive infrared detection. Its compact design allows for unobtrusive placement while maintaining sensitivity to human motion. The unit is compatible with standard alarm system inputs and offers simple installation and wiring. As a purpose-built indoor motion detector, it balances detection performance and low visual impact to suit locations where aesthetics and space are important.
Suitable for
Indoor perimeter detection inside residential and commercial buildings
Integration with wired alarm and security control panels
Discreet motion sensing in corridors, storage rooms, and small offices
Supplementary detection in multi-sensor security zones
Key specifications
Sensor type: passive infrared (PIR)
Form factor: miniaturized/compact
Intended environment: indoor use
Detection target: human presence and movement
Output: detection signal compatible with alarm system inputs
How to use
Install the SATEL TOPAZ sensor at the recommended height and orientation for the monitored area, avoiding direct exposure to air vents, heating elements or strong sunlight that could affect performance. Connect the unit to the alarm control panel or input module following the panel manufacturer’s wiring diagram, ensuring correct power and signal connections. After installation, test the sensor by walking through the coverage area to verify detection zones and adjust placement as needed to achieve reliable coverage without false alarms.
Usage recommendations
For consistent performance, mount the detector on a stable surface at the height suggested by the control panel or installation guide, keep the lens clean of dust and debris, and avoid pointing the sensor at moving objects such as curtains or fans. Use the SATEL TOPAZ as part of a broader security layout that includes complementary detectors and properly configured alarm inputs for optimal coverage and reduced false triggers.

## FAQ

### How much does the Motion detector SATEL TOPAZ (model TOPAZ) cost, and is it available for purchase?

The price is 16.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 24 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. 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 SATEL 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 SATEL 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/11863629/67262266_large.webp