Best Smoke Alarms Deals Online in the UK (25 Deals Found)

Last Updated - 16/08/2025 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'

£23.79 £26.00
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Best Value
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

£12.30 £20.49
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New
Smoke Alarm with 10 Year Life Battery Smoke Detector & Fire Alarms Sensor Home
1x Smoke detector. Static current:≤15uA. Alarm sound pressure:80db/1m. Alarm current:≤160mA. Extendable Curtain Poles, 1

£8.49
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

£20.36 £20.99
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New
10 Year Life Smoke Alarm with Battery Smoke Detector & Fire Alarms Sensor Home
1x Smoke detector. Static current:≤15uA. Alarm sound pressure:80db/1m. Alarm current:≤160mA. Extendable Curtain Poles, 1

£69.25 £72.89
ELRO

New
ELRO FS1805 | 2-Piece Smoke Alarm Set | Magnetic Mounting Kit | 5-Year Battery | Complies with European Standard EN14604
With easy magnetic sticker installation- 5 years battery- 5 years guarantee- test Button- 2 pack

£16.99
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11% 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

£14.99 £16.99
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New
2 x Home Fire Alarm Smoke Detector Gas Sensor Fireangel Twin Pack with Batteries
Product life span: 10 year. Battery life: 2 x 1.5 V AA (replaceable battery Included) replaceable battery Included. Soun

£12.89
Kidde

New
Kidde 233045 10Y29 RB Smoke Alarms 2 Pack 10 Year Battery Life
10 year life

£25.75
New
Kidde 10Y29 Optical Smoke Alarm with Sealed 10 Year Lithium Battery, Test & Hush
The Kidde 10Y29 is an optical smoke alarm with a 10 year sealed longlife lithium battery. The compact body of the alarm

£15.00
15% Off
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

£5.95 £7.00
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Aico

New
Aico EI3024
Contains both an Optical and Heat sensor for a total fire response

£43.00
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New
Fireangel ST-622T 10 Year Thermally Enhanced Optical Smoke Alarm, White
Using the sensing technology of choice for the UK's Fire and Rescue Service, the FireAngel ST-622 is a sealed 10 year ba

£17.31
Kidde

New
Kidde 10SCO Combination Smoke and Carbon Monoxide Alarm with Voice Notification
Alarms should be tested by pressing the test button in accordance with the supplied instructions.

£24.90
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New
Smoke Alarm with 10 Year Life Battery Smoke Detector & Fire Alarms Sensor Home
1x Smoke detector. Static current:≤15uA. Alarm sound pressure:80db/1m. Alarm current:≤160mA. 2x DC1.5V battery.

£8.39
26% Off
Fireangel

New
FireAngel ST-622T 10 Year Thermoptek Smoke Alarm
Thermoptek multi-sensor rapidly detects fast flaming & slow smouldering fires

£21.99 £29.99
New
FireAngel Optical Smoke Alarm with 5 Year Replaceable Batteries FA6615-R
Optical sensor suitable for living areas, bedrooms, hallways and landings. Sleep Easy function silences the low battery

£9.03
New
Wireless Interlinked Smoke & Heat Alarm Kit UK Compliant - Build Your Own Bundle
Smoke & Heat alarms should be interlinked (All our kits are interlinked & tested before being dispatched). It is now rec

£219.98
New
Kidde 10Y29 Optical Smoke Alarm with Sealed 10 Year Lithium Battery Twin Pack
The Kidde 10Y29 is an optical smoke alarm with a 10 year sealed longlife lithium battery. The compact body of the alarm

£28.50
New
Wireless Interlinked Smoke Heat CO Alarms 10 Year Battery Similar to HiSPEC
Wireless Interlinked Alarm Bundle. Wireless Interlinked Alarms | All LINKD Alarms wirelessly interlink with each other.

£119.99
New
Smoke Alarm with 10 Year Sealed For Life Battery Smoke Detector & Fire Alarms UK
Install alongside heat alarms and carbon monoxide alarms for complete protection. With our quiet test function, you're l

£9.09
New
FireAngel Smoke Alarm with Escape Light ST-623E-R
Been stored, unit has a security sticker, I will put two spare AA batteries in the package in case the included batterie

£7.50
New
FireAngel FA6620‑R Optical Smoke Alarm - White
SAFETY ASSURED: The FA6620 smoke alarm holds CE and UKCA marks and is certified to BS EN 14604:2005+AC:2008. Avoid placi

£12.48
New
1/2X Home Fire Alarm Smoke Detector Gas Sensor Fireangel UK
Sounds a loud 85 dB alarm. Optical smoke sensing technology detects slow smouldering fire. Product life span: 10 year. B

£6.59
New
Wired Interlinked Smoke Alarm with LED Indicator and Silence Button (2-Pack)
It also alerts you when the battery is low, for added peace of mind. Silent and User-Friendly Features: Enjoy a hassle-f

£17.35

25 Smoke Alarms deals are available from: Amazon, eBay stores, starting from £5.95.
The biggest discount we found is 39% on FireAngel SB1-R Smoke Alarm - Toast Proof, Optical Smoke Alarms for Home with Replaceable Battery and Test/Silence Button - Early Smoke Detector Fire Alarm - 90 x 35 mm - White - 2-Pack at Amazon.
The lowest price we found is £5.95 while the highest is £219.98.
Prices for the best Smoke Alarms deals average at £30.87.
Last updated on August 16, 2025.
We scanned these quality online stores and more to deliver you with the best offers online available for Smoke Alarms.