Best Smoke Alarms Deals Online in the UK (10 Deals Found)

Last Updated - 01/04/2026 Sort By:

Best Choice
Fireangel

New
FireAngel Optical Smoke Alarm 2-Pack - FA6620 10-Year Battery Smoke Alarms for Home with Test/Silence Button - Replaceme
SMOKE DETECTORS FOR HOME: The optical smoke alarm makes protecting your home simple. Its optical sensing chamber 'sees'

£25.99
Fireangel

Used
FireAngel Optical Smoke Alarm 2-Pack - FA6620 10-Year Battery Smoke Alarms for Home with Test/Silence Button - Replaceme
SMOKE DETECTORS FOR HOME: The optical smoke alarm makes protecting your home simple. Its optical sensing chamber 'sees'

£23.22
TEFLERON

New
2 Pack Smoke Alarms for Home – 10-Year Life Fire Alarms with 5-Year Replaceable Battery, EN14604 Certified Photoelectric
🏡 Advanced Optical Detection for Rapid Response || Safeguard your family with this 2 pack smoke alarm for home, featuri

£14.99
Best Value
Isafenest

New
Fire Alarms Battery Operated for Home,Smoke Alarms Detector with 10 Years Life/5 Years Battery, Fire Alarm with LED Indi
【Quick smart 】The smoke by the change in the intensity of the infrared light scattered in the smoke. When the light inte

£10.99 £18.89
29% Off
X-Sense

New
X-Sense Smoke Alarm for Home, 10-Year Battery Fire Alarm, LED Indicator & Silence Button, Smoke Detector Battery Operate
Sensitive & Intelligent: The state-of-the-art photoelectric sensor, combined with an advanced intelligent chipset, this

£11.99 £16.99
ELRO

New
ELRO FS1801 smoke detector complies with European standard EN14604-4 pieces, pack of 4, White
10-YEAR PROTECTION: The battery of the 10-year smoke detector is replaceable. By replacing the battery, you can continue

£20.99
32% Off
Fireangel

New
FireAngel SB1-R Smoke Alarm - Toast Proof, Optical Smoke Alarms for Home with Replaceable Battery and Test/Silence Butto
EARLY WARNING SMOKE DETECTOR: The optical smoke alarm makes protecting your home simple. The optical smoke sensing chamb

£13.99 £20.49
23% Off
BLACK+DECKER

New
BLACK+DECKER Smoke Alarm. Smoke Alarms For Home Battery Powered With 10 Year Battery Included. Easy To Install Smoke Det
SMOKE DETECTORS FOR HOME: Keep your home safe with an optical smoke alarm that’s smart and responsive - its advanced sen

£9.97 £12.99
BLACK+DECKER

Used
BLACK+DECKER Smoke Alarm. Smoke Alarms For Home Battery Powered With 10 Year Battery Included. Easy To Install Smoke Det
SMOKE DETECTORS FOR HOME: Keep your home safe with an optical smoke alarm that’s smart and responsive - its advanced sen

£8.22
Status

New
STATUS 9V Photoelectric Smoke Alarm, Battery Operated Fire Detector for Home Bedroom Kitchen Hallway, Includes 9V Batter
Status photoelectric smoke alarm for reliable fire detection Status provides peace of mind with this 9V photoelectric sm

£6.97

10 Smoke Alarms deals are available from: Amazon stores, starting from £6.97.
The biggest discount we found is 42% on Fire Alarms Battery Operated for Home,Smoke Alarms Detector with 10 Years Life/5 Years Battery, Fire Alarm with LED Indicator and Silence Button Photoelectric Smoke Alarms for Home (2 Pack) at Amazon.
The lowest price we found is £6.97 while the highest is £25.99.
Prices for the best Smoke Alarms deals average at £14.73.
Last updated on April 1, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Smoke Alarms.