# Door sensor BroadLink DS4‑FC with S3 Hub — wireless smart door/window sensor, open/close detection

**URL:** https://aio.lv/en/product--broadlink-ds4-fc-with-s3--4757488
**Data updated:** 2026-02-12 14:12 (EET)
**Category:** Smart Sensors
**Manufacturer:** BroadLink
**Manufacturer code:** DS4-FC with S3
**Warranty:** 1 Year
**Availability:** Out of stock

## Summary description

BroadLink DS4‑FC is a wireless smart door/window sensor supplied with the S3 hub for integration into home automation. It detects open/close state and reports status to the hub for notifications and automation routines. Suitable for securing doors, windows or cabinets, it enables real‑time alerts, remote monitoring and interaction with other smart devices via the S3 hub.

## Long description

BroadLink DS4‑FC with S3 Hub is a wireless smart door/window sensor designed to detect open and closed states and integrate with home automation via the included S3 hub. The sensor reports status changes to the hub so you can receive real‑time alerts, monitor entries remotely and trigger automation scenarios. Supplied as a paired solution with the S3 hub, the DS4‑FC enables communication with other smart devices in the same system and supports straightforward installation on doors, windows or small access panels.
Advantages
The DS4‑FC provides reliable magnetic contact detection for open/close monitoring and transmits state changes through the S3 hub for centralized control. Its wireless design simplifies placement without running wires, while the bundled S3 hub handles device communication and integrates the sensor into automation routines. The compact form factor allows installation on a variety of frame types and the sensor supports remote notifications and status checks when connected to the hub.
Suitable for
Monitoring external and internal doors for open/close status
Securing windows and glass doors against unexpected opening
Protecting cabinets, cupboards or server racks
Triggering home automation scenes based on door/window state
Key specifications
Wireless communication via included S3 hub for integration into BroadLink home automation
Magnetic contact sensor for open/close detection
Compact physical design suitable for installation on doors, windows and small panels
Real‑time status reporting to the hub for notifications and automation
Battery‑powered sensor for cable-free placement
How to use
Install the magnetic sensor and magnet on matching surfaces of the door and frame or on the window and its sash so that they align when closed. Mount the sensor and magnet using the recommended adhesive or screws depending on the surface; ensure the gap between the two parts is within the manufacturer’s alignment tolerance for reliable detection. Power the sensor with the supplied or specified battery and add the device to the S3 hub following the hub’s device pairing procedure. After pairing, configure notifications and automation rules in the BroadLink app or hub interface to receive alerts and trigger connected devices based on open/close events.
Iesaka lietot
The sensor performs best when mounted on clean, dry surfaces with proper alignment of the sensor and magnet; test the open/close detection after installation and periodically check battery level and secure attachment.

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. 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 BroadLink 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 BroadLink 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

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