# X-Sense FS121 Fire Alarm System with Central Control Unit, 100 dB Alarm, 50 m Range

**URL:** https://aio.lv/en/product--x-sense-zasxs00107weu--11689786
**Data updated:** 2026-06-22 11:27 (EEST)
**Category:** Home Goods Accessories
**Manufacturer:** X-Sense
**Manufacturer code:** ZASXS00107WEU
**EAN:** 0810194780028
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 160.49 €
**Prices and availability valid until:** 2026-08-20 23:59
**Price without VAT (21%):** 132.64 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--x-sense-zasxs00107weu--11689786

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 04.08.2026 | free |
| Pickup points | 07.08.2026 | 1.79 EUR |
| Courier delivery to door | 07.08.2026 | 4.99 EUR |

## Summary description

The X-Sense FS121 is a reliable fire alarm system designed for home safety. It features a central control unit, a powerful 100 dB alarm, and a maximum operating range of 50 meters. The system is powered by AC or a lithium battery, ensuring continuous protection. This white-colored unit is compact and easy to integrate into any interior, providing essential fire detection and monitoring capabilities for residential environments.

## Long description

The X-Sense FS121 Fire Alarm System is a comprehensive solution designed to enhance residential safety through reliable fire detection and monitoring. This system includes a central control unit that coordinates the network, ensuring that alerts are communicated effectively throughout the home. With a powerful 100 dB alarm, the device provides a loud, clear warning signal in the event of smoke detection, while the 50-meter operating range allows for flexible placement across various rooms. Its compact, white design ensures it blends seamlessly into any modern interior, providing essential protection without being obtrusive.
Advantages
The primary advantage of the X-Sense FS121 is its dual power capability, which allows the system to operate via AC power or a lithium battery, ensuring continuous monitoring even during power outages. The inclusion of a central control unit simplifies the management of the alarm network, providing a unified point of contact for system status. The high-decibel output ensures that occupants are alerted promptly, while the extended wireless range provides reliable coverage for larger residential areas. Furthermore, the compact dimensions and lightweight construction of the central unit make installation straightforward and unobtrusive.
Suitable for
Residential homes and apartments
Multi-room monitoring setups
Early smoke detection in living areas and bedrooms
This system may not be suitable for large industrial facilities or commercial buildings that require complex, hardwired fire suppression integration or specialized industrial-grade sensors. It is designed specifically for residential use and may not meet the specific regulatory requirements for high-occupancy public buildings.
Key specifications
Alarm volume: 100 dB
Maximum operating range: 50 m
Power sources: AC and lithium battery
AC adapter output: 5 V, 1 A
Central unit dimensions: 90 x 90 x 26.5 mm
Central unit weight: 78 g
Color: White
To use the X-Sense FS121, mount the central control unit in a central location within your home, ensuring it is within the specified range of the smoke detectors. Connect the unit to a power source using the provided AC adapter or ensure the lithium battery is correctly installed. Follow the manufacturer's instructions to pair the detectors with the central unit to establish a secure network. Once connected, perform a test of the system to verify that the alarm sounds correctly and that the central unit receives the signal.
What to consider before purchase
Ensure the 50-meter range is sufficient for the layout of your property.
Check that you have a suitable power outlet nearby if using the AC adapter.
Verify the number of detectors required for your specific home size.
Usage recommendations: Regularly test the system once a month to ensure all components are functioning correctly. Keep the sensors free of dust and debris to maintain optimal sensitivity and replace the lithium battery according to the manufacturer's guidelines to prevent service interruptions.

## Specifications

| Feature | Value |
|---|---|
| Battery technology | Lithium |
| AC adapter output voltage | 5 |
| AC adapter output current | 1 A |
| AC adapter included | Yes |
| Alarm decibels | 100 dB |
| Product colour | White |
| Number of devices supported | 50 |
| Maximum range | 50 m |
| Battery low indication | Yes |
| Batteries included | Yes |
| Power source type | Battery, AC |
| AC input frequency | 50/60 |
| AC input voltage | 100-240 |
| Test button | Yes |
| Central control unit operating temperature (T-T) | 4.4 - 37.8 |
| Central control unit operating relative humidity (H-H) | 0 - 85 |
| Central control unit dimensions (WxDxH) | 90 x 90 x 26.5 |
| Central control unit weight | 78 g |
| Carbon monoxide (CO) detector | Yes |
| Smoke detector | Yes |
| Emergency audible alarm unit | Yes |
| Fire alarm control unit | Yes |
| Number of smoke detectors | 12 |
| Battery voltage (detector) | 3 V |
| Compliance certificates | CE, RoHS |

## FAQ

### How much does the X-Sense FS121 Fire Alarm System cost, and is it available for purchase?

The price is 160.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 108 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 04.08.2026 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 X-Sense FS121 Fire Alarm System 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 X-Sense 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 X-Sense 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

### Where can I download the instructions for X-Sense FS121 Fire Alarm System?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/11689786/68889189_large.webp