# Magnetic Contact Sensor SATEL B-3CS cylindrical reed switch for door/window monitoring

**URL:** https://aio.lv/en/product--satel-b-3cs--11863459
**Data updated:** 2026-03-09 17:40 (EET)
**Category:** Smart Sensors
**Manufacturer:** SATEL
**Manufacturer code:** B-3CS
**EAN:** 5905033338142
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 8.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 7.02 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--satel-b-3cs--11863459

## 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

Cylindrical magnetic contact sensor SATEL B-3CS is a reed-type switch designed for monitoring doors and windows in alarm and access control systems. The compact cylindrical housing contains the magnetic contact and magnet, providing normally closed (NC) or normally open (NO) sensing depending on installation. It is suitable for discreet installation in frames or profiles to detect opening/closing events and integrate with security panels.

## Long description

Magnetic Contact Sensor SATEL B-3CS cylindrical reed switch for door/window monitoring is a compact magnetic contact designed for integration with alarm and access control systems. The cylindrical construction houses a reed switch and a magnet, enabling detection of opening and closing events. The device can be configured for normally closed (NC) or normally open (NO) operation depending on how the two parts are installed, and its small size makes it suitable for flush or concealed mounting in door and window frames or profiles.
Advantages
The cylindrical form factor allows discreet placement inside frames and profiles while maintaining reliable contact operation. The reed switch principle ensures low current consumption and long service life with minimal maintenance. Being configurable as NC or NO provides flexibility for different alarm panel inputs and wiring schemes. Its simple two-part design facilitates straightforward installation and alignment for consistent detection.
Suitable for
 Monitoring doors in residential and commercial alarm systems
 Detection of window opening in security and access control installations
 Concealed installation inside door or window profiles for aesthetic integration
 Replacement or upgrade of existing reed-type magnetic contacts
Key specifications
 Sensor type: cylindrical reed magnetic contact
 Operation modes: configurable for normally closed (NC) or normally open (NO)
 Mounting: flush or concealed installation in frames and profiles
 Construction: two-part contact and magnet assembly in compact cylindrical housing
 Compatibility: designed for integration with standard alarm and access control panels
How to use
Install the two cylindrical parts so that the magnet aligns with the reed switch when the door or window is closed. Choose wiring that corresponds to the required NC or NO configuration and connect the switch leads to the appropriate input on the alarm or access control panel. Ensure proper alignment and gap clearance according to the mounting location to guarantee reliable triggering. After mounting, test the sensor by opening and closing the door or window to verify signal changes at the control panel.
Usage recommendations
Place the sensor parts in clean, dry frame recesses and avoid excessive gap between magnet and contact to maintain stable operation. Regularly inspect mounting for loosening or corrosion in environments with high humidity or pollutants. Use compatible panel inputs and, if required, consult system documentation for end-of-line resistor placement or tamper monitoring integration.

## FAQ

### How much does the Magnetic Contact SATEL B-3CS cylindrical sensor cost, and is it available for purchase?

The price is 8.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 76 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/11863459/67262025_large.webp