Winner
16% OFF
£21.83
£25.99
Updated October 2026
Data from the official X-Sense site.
2026 verdict
X-Sense SD19-MN Interconnected Smart Smoke Alarm beats X-Sense Wi-Fi Carbon Monoxide Alarm in 2026, with its clearest edge on price, battery life, and connectivity.
Its strongest advantages show up in price, battery life, and connectivity, with its broader overall balance helping widen the gap. X-Sense Wi-Fi Carbon Monoxide Alarm remains a niche alternative if rating, screen, and Built-in light matter more than the rest of the comparison. As a general recommendation, X-Sense SD19-MN Interconnected Smart Smoke Alarm comes out on top.
Works with
Connectivity
- Wi-Fi 2.4 GHz
vs
15% OFF
£26.00
£30.59
Works with
Connectivity
- Wi-Fi 2.4 GHz
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| Feature | X-Sense SD19-MN Interconnected Smart Smoke Alarm | X-Sense Wi-Fi Carbon Monoxide Alarm | Winner |
|---|---|---|---|
| Price | £21.83 | £26.00 | X-Sense SD19-MN Interconnected Smart Smoke Alarm |
| Rating | 4.4 | 4.6 | X-Sense Wi-Fi Carbon Monoxide Alarm |
| Battery Life | 10 years | 1 year | X-Sense SD19-MN Interconnected Smart Smoke Alarm |
| Connectivity | 2.4 GHz WiFi, Other | 2.4 GHz WiFi | X-Sense SD19-MN Interconnected Smart Smoke Alarm |
| Screen | NO | YES | X-Sense Wi-Fi Carbon Monoxide Alarm |
| Built-in Light | NO | YES | X-Sense Wi-Fi Carbon Monoxide Alarm |
| Warranty | 5 years | 5 years | Tie |
| Integrations | Home Assistant | Home Assistant | Tie |
| Sensors | Smoke | CO | Tie |
| Alerts | Fire Alerts, Low Battery Alerts | CO Alerts, Low Battery Alerts | Tie |
| Built-in Siren | YES | YES | Tie |
| Pathlight | NO | NO | Tie |
Winner
16% OFF
£21.83
£25.99
- + Price: £21.83
- + Battery Life: 10 years
- + Connectivity: 2.4 GHz WiFi, Other
- - Rating: 4.4 vs 4.6
- - Screen: NO vs YES
15% OFF
£26.00
£30.59
- + Rating: 4.6
- + Screen: YES
- + Built-in Light: YES
- - Price: £26.00 vs £21.83
- - Battery Life: 1 year vs 10 years
Frequently Asked Questions
Which is better overall: X-Sense SD19-MN Interconnected Smart Smoke Alarm or X-Sense Wi-Fi Carbon Monoxide Alarm?
X-Sense SD19-MN Interconnected Smart Smoke Alarm has the stronger overall profile in this comparison, especially for price, battery life, and connectivity.
What is the biggest difference between X-Sense SD19-MN Interconnected Smart Smoke Alarm and X-Sense Wi-Fi Carbon Monoxide Alarm?
Price is one of the clearest differences: X-Sense SD19-MN Interconnected Smart Smoke Alarm lists £21.83, while X-Sense Wi-Fi Carbon Monoxide Alarm lists £26.00.
Which one looks better on price?
X-Sense SD19-MN Interconnected Smart Smoke Alarm is listed at £21.83, while X-Sense Wi-Fi Carbon Monoxide Alarm is listed at £26.00. X-Sense SD19-MN Interconnected Smart Smoke Alarm (better spec).
Who should buy X-Sense SD19-MN Interconnected Smart Smoke Alarm?
Choose X-Sense SD19-MN Interconnected Smart Smoke Alarm if your priority is price and battery life and that matters more than rating.
Who should buy X-Sense Wi-Fi Carbon Monoxide Alarm?
Choose X-Sense Wi-Fi Carbon Monoxide Alarm if your priority is rating and screen and that matters more than price.
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