# Surface-mount reed switch SATEL B-2S — concealed installation, Ø6.5 mm, white

**URL:** https://aio.lv/en/product--satel-b-2s--11943820
**Data updated:** 2026-03-10 11:49 (EET)
**Category:** Sensors & Detectors
**Manufacturer:** SATEL
**Manufacturer code:** B-2S
**EAN:** 5905033336131
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.49 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 6.19 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--satel-b-2s--11943820

## 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

SATEL B-2S is a recessed reed switch (kontaktron) designed for concealed mounting with a 6.5 mm diameter body in white finish. The device functions as a magnetic contact for alarm and security systems, detecting door/window opening when paired with a magnet. Suitable for use in residential and commercial security installations where discreet sensor placement is required.

## Long description

SATEL B-2S is a recessed surface-mount reed switch designed for concealed installation in door and window frames. Its compact cylindrical body with a 6.5 mm diameter and white finish allows integration into joinery or profiles with minimal visual impact. The switch operates as a magnetic contact for alarm and security systems, closing or opening the circuit in response to the presence of a mating magnet and enabling reliable detection of openings in residential and commercial applications.
Advantages
The SATEL B-2S offers a low-profile design that supports hidden placement, reducing tampering and preserving the aesthetics of doors and windows. Its standardized diameter simplifies drilling and mounting in common frame materials, and the white finish matches many interior fittings. The reed contact provides simple, passive operation compatible with most alarm control panels and does not require a power source for the sensor itself.
Suitable for
 Concealed mounting in wooden, PVC, or aluminum door and window frames
 Perimeter intrusion detection in residential alarm systems
 Magnetic contact points in commercial security installations
 Retrofit projects where minimal visible hardware is required
Key specifications
 Form factor: recessed/surface-mount reed switch
 Body diameter: 6.5 mm
 Finish/color: white
 Operation: magnetic contact (reed) activated by external magnet
 Application environment: indoor use in doors and windows
How to use
Install the SATEL B-2S by drilling a 6.5 mm hole in the door or window frame at the chosen mounting location, ensuring alignment with the mating magnet mounted on the moving sash or leaf. Insert the reed switch into the prepared hole and secure it according to the frame material—use adhesive or a retaining sleeve if required by the installation. Connect the switch leads to the alarm control panel input or wiring run, observing correct polarity and insulation practices. Test the contact operation by bringing the magnet into alignment and verifying the circuit change at the control panel.
Usage recommendations
For reliable performance, position the magnet and reed switch with consistent air gap and alignment; avoid excessive gaps or misalignment that can prevent proper activation. Use protective sleeves or grommets in soft or hollow frames to prevent movement. When installing in high-humidity or exposed locations, ensure the surrounding frame provides adequate protection from water ingress. Verify compatibility with the alarm panel's input type and use appropriate wiring and termination to maintain signal integrity.

## FAQ

### How much does the Recessed reed switch SATEL B-2S cost, and is it available for purchase?

The price is 7.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 8 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. 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/11943820/67386650_large.webp