X-Sense SD11-MR31 – Kit of 3 interlinked smoke alarms with SBS50 base
The SD11-MR31 kit links three smoke alarms to an SBS50 base station for alerts wherever you are. You can test, silence and schedule night mode from the app.
What the SD11-MR31 brings day to day
Connected to the app through the SBS50 base, the alarms send instant notifications for fire detection and device faults.
You can set a silence duration in the app, and night mode stops the green standby LED from flashing.
Fit the alarms with screws or the magnetic pad supplied, for quick removal and replacement.
On flat walls, the magnetic pads allow a no-hole installation.
Family sharing lets relatives or friends monitor the home and react quickly, even when you are away.
Test or silence the alarms directly from the app, without a ladder.
Ready to protect your home?
Check today’s price and delivery time for the X-Sense SD11-MR31.
Real-life uses
Who is it for?
A good choice if…
Households who like the classic SD11 shape but want interlinked alarms and app control.
Check before you buy
The SBS50 base needs a 2.4 GHz Wi-Fi network to connect to the app.
Technical specifications
| Model | SD11-MR31 |
|---|---|
| Contents | 3 SD11-MR alarms, SBS50 base, 3 CR123A batteries, 3 magnetic pads, brackets, screws, adapter and cable |
| Connection | Wireless interlink via SBS50 base |
| Power | Replaceable CR123A battery |
| Life | 10 years |
| Alarm dimensions | 12 × 12 × 4 cm |
| Material | ABS |
| Operating humidity | ≤ 85% |
Frequently asked questions
Is the base station included?
Yes. The kit includes three SD11-MR alarms and one SBS50 base station.
Can I fit it without drilling?
On flat walls, the magnetic pads supplied allow a no-hole installation; screws are also included.
Can I stop the green light flashing at night?
Yes. In night mode the standby LED stops flashing green.
The X-Sense SD11-MR31 price changes often
Deals, stock and delivery times change daily: check today’s offer in one click before it moves.














