Best Smoke & Carbon Monoxide Alarms UK (2026) — Page 2
Smoke alarms and carbon monoxide detectors for UK homes.
Read our full Kidde 7DCOC Carbon Monoxide Alarm, White vs FireAngel FA6120-INT-T2 Smoke Alarm Detector, White: Which Smoke & Carbon Monoxide Alarms Is Better? guide.
#7 Pick
Defender 10 Year Carbon Monoxide Alarm, BSI Rated, Battery Powered CO Detector with LCD Digital DisplayRated 4.4 out of 5 stars (612)
- Standalone
- 10 years
£17.95
Pros
- BSI rated and EN50291 compliant
- LCD digital display for live CO levels
- Sealed 10-year battery life
Cons
- Basic wall/shelf mount only, no interlink feature
#8 Pick
Aico Ei3016 Optical Smoke Alarm, 230V Mains Powered with 10-Year Rechargeable Battery Backup, WhiteRated 4.7 out of 5 stars (182)
- Interconnectable
- 5 years
£54.99
Pros
- Mains powered with 10-year rechargeable lithium battery backup
- AudioLINK+ technology extracts diagnostic data via smartphone app
- Automatic dust compensation reduces false alarms
Cons
- Higher price than standalone battery-only smoke alarms
#9 Pick
FireAngel FA6620 Optical, Battery Powered Fire/Smoke Alarm for Home, 10-Year BatteryRated 4.3 out of 5 stars (12,666)
- Standalone
- 10 years
£11.98
Pros
- Sealed 10-year battery, no replacements needed
- Very high review volume backs up reliability claims
- Replacement model for the popular ST-620/ST-622 series
Cons
- Standalone unit, no wireless interlink with other alarms
#10 Pick
FireAngel FP2620W2-R Pro Connected Smart Smoke Detector with 10-Year Life Battery, Interlink Fire Alarm for Home with App, WhiteRated 4.1 out of 5 stars (1,801)
- Wireless Interlink
- 5 years
£44.99
Pros
- Wi-Safe 2 wireless interlink links with other Pro Connected alarms
- Sealed 10-year Panasonic battery, no replacements needed
- Optional app and gateway for remote notifications
Cons
- Full smart features require a separately sold Connected Gateway
#11 Pick
FireAngel Optical Smoke Alarm 2-Pack — FA6620 10-Year Battery Smoke Alarms for Home with Test/Silence Button, Replacement for FireAngel ST-622/ST-620Rated 4.3 out of 5 stars (12,668)
- Standalone
- 5 years
£22.16
Pros
- Twin pack covers two rooms in one purchase
- Sealed 10-year lithium battery, no replacements needed
- Test/silence button for easy false-alarm hushing
Cons
- Standalone units, no wireless interlink between the two alarms
#12 Pick
FireAngel FA3313-T2 Carbon Monoxide Alarm and Detector — 10-Year Sensor Life CO Alarm for Home with 1-Year Replaceable Batteries, Travel/Portable CO Detector, 2-Pack, WhiteRated 4.7 out of 5 stars (181)
- Standalone
- 5 years
£36.00
Pros
- 10-year sensor life reduces long-term running costs
- Twin pack suits both kitchen and bedroom coverage
- Compact and portable, suits travel and caravans too
Cons
- Batteries are replaceable rather than fully sealed for 10 years