The 10 Best Smoke Detectors Offers in UK - September 2025
Last updated: 16. September 2025
Smoke Detectors Comparison - We´ve already helped over 5 million consumers this year!
1
Best Rated
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
Only today: 11% OFF!
£35.99
(11% DISCOUNT!)
Free Delivery**
- Attention: The SC07 Combination Smoke and Carbon Monoxide Alarm is not compatible with the SBS50 Base Station and does not support interconnectivity or any APP functionality
- 2-In-1 Protection: Equipped with both photoelectric smoke sensor and electrochemical CO sensors that work independently of each other, this smoke alarm and carbon monoxide detector instantly notifies you when dangerous smoke or CO concentration is detected while minimizing false alarms; provides the ultimate protection from 2 deadly threats, all contained in 1 unit
- Built-In 10-Year Battery: Provides 10 years of continuous power with a built-in lithium battery, saving on energy while remaining eco-friendly; this smoke alarm and carbon monoxide alarm saves you from constantly having to change batteries or wonder if your alarm is still functioning
- Accurate, Reliable & Highly Sensitive: The X-Sense combination smoke and CO alarm has been redesigned from the inside out; it will ensure that smoke triggers the alarm instead of interference by taking 3 separate smoke samples from the surrounding air; a full 360 ° ring of air intakes ensures complete detection with no blind spots
- LED Indicator: Clearly informs you of the working status of the smoke alarm with its 3-color flashing LED indicator (green LED indicates normal operation, red LED indicates the alarm status, and yellow LED indicates a fault), ensuring the safety and security of your home 24/7
- Large LCD Display: Clearly displays battery level and the real-time CO levels in PPM (parts per million) taken from the surrounding air, with an updated measurement taken every 10 seconds, ensuring you are always aware of the status of your carbon monoxide and smoke detector
2
Best Price
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
Only today: 45% OFF!
£16.99
(45% DISCOUNT!)
Free Delivery**
- Sensitive & Intelligent: The state-of-the-art photoelectric sensor, combined with an advanced intelligent chipset, this smoke alarm for home can accurately detects dangerous smoke levels in seconds with fewer false alarms
- 10-Year Battery Life: The low power consumption enables an incredible product life of up to 10 years with the built-in lithium battery; provides reliable uninterrupted 24/7 protection so you can sleep safely
- Reliable Auto-Check: The fire alarm monitors itself constantly and timely informs you of faults or a low battery for secure use
- Superior Construction: Made of fire-retardant ABS plastic material; the long-lived smoke detector horn alerts you with a loud 85-decibel alarm when smoke has been detected
- High Quality: This premium smoke alarm conforms to EN 14604 standard
3
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
Only today: 20% OFF!
£23.79 (£11.90 / count)
(20% DISCOUNT!)
Free Delivery**
- SMOKE DETECTORS FOR HOME: The optical smoke alarm makes protecting your home simple. Its optical sensing chamber 'sees' smoke as it enters the alarm, providing a fast response to slow burning fires with thick white smoke.
- FEWER NUISANCE ALARMS: The advanced optical sensor ensures the FireAngel smoke alarm is less prone to false alerts from cooking fumes. Avoid placing near bathrooms or kitchens.
- 10-YEAR BATTERY: Each smoke alarm is fitted with a 10-year sealed battery, offering protection for the lifetime of the device without needing to change the batteries.
- EASY INSTALLATION: Fitted with a removable base plate, secure it to the ceiling using the screws provided. Push and twist to secure the device. The base plate is identical to the ST622, making replacements quick and easy.
- SAFETY ASSURED: The FA6620 smoke alarm holds CE and UKCA marks and is certified to BS EN 14604:2005+AC:2008. Suitable for domestic premises, including leisure accommodation vehicles, it comes with a 5-year warranty.
4
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
Only today: 41% OFF!
£20.49 (£10.24 / count)
(41% DISCOUNT!)
Free Delivery**
- EARLY WARNING SMOKE DETECTOR: The optical smoke alarm makes protecting your home simple. The optical smoke sensing chamber works by 'seeing' smoke as it enters the alarm, perfect for slow burning fires with thick white smoke.
- TOAST PROOF: The high performance optical sensors ensure the FireAngel SB1-R is less prone to false alarms from cooking fumes, so you can enjoy your breakfast in peace.
- TEST/HUSH BUTTON: Press the large test button to ensure your Fire Angel smoke alarm is working properly. A loud, high-pitched sound will verify it. To silence a false alarm, press and hold the button for 5 seconds.
- 1 YEAR BATTERY: Each battery operated smoke alarm comes with a 1 year, replaceable 9V battery. When the smoke alarm battery is low, the device will 'chirp' and the red LED will flash once every 32 seconds. Replace the battery ASAP.
- EASY INSTALLATION: Each FireAngel smoke alarm comes with a removable base plate. Attach the base plate to the ceiling using the screws provided. After inserting the battery, push and twist the alarm clockwise onto the base plate.
- SAFETY ASSURED: The SB1-R alarm holds both CE and UKCA marks and has been certified to BS EN14604:2005. Suitable for domestic properties including mobile homes and caravans. Not suitable for commercial properties. Includes a 3-year warranty.
- FIREANGEL HOME PROTECTION: In addition to our smoke alarms, we offer a wide range of other safety products designed to protect you and your family. Choose from smart and wireless devices, as well as standard carbon monoxide and heat alarms.
5
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
Only today: 18% OFF!
£20.99 (£5.25 / count)
(18% DISCOUNT!)
Free Delivery**
- 10-YEAR PROTECTION: The battery of the 10-year smoke detector is replaceable. By replacing the battery, you can continue using it without needing to buy new smoke detectors. The battery lasts 1 year.
- NEW, MODERN OPTICAL SENSOR: Equipped with an advanced optical sensor that reacts quickly to fire, providing early warnings in the event of smoke development. Also, it reduces false alarms.
- USER-FRIENDLY: Easily test the functionality of your smoke detector with the test button and stay informed about the battery status with the low battery indicator.
- RELIABLE QUALITY: Enjoy a worry-free experience with a 2-year warranty. Additionally, this smoke detector meets strict European safety standards (EN14604).
- EASY INSTALLATION: The smoke detector is simple to install using the included mounting kit.
6
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
Free Delivery**
- ATTENTION - At the end of the test(by pressing the TEST button), the smoke alarm will go into silent mode and it will not alarm(for 9 minutes), please wait for the silent mode to end before doing the next test
- LONG LIFESPAN - Our fire alarms are produced under EN14604 standard, providing up to 10 years of use. And the smoke alarms come with a 5-year 9V alkaline battery, you can change it by yourself when low battery
- LOUD ALARM - Our fire alarm have 85dB loud alarm and red light indicator. Range: 20-40 square meters. The beeping will continue until the smoke is cleared or the Test/Silent button is released
- AUTO CHECK SMOKE ALARM - Our smoke alarm can test itself constantly with red led flashes every 33 seconds. Keep you and your family safe
- EASY INSTALLATION - Our battery operated smoke alarm is super easy to install, no need to rewiring, all accessories included
7
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
Only today: 19% OFF!
£15.99 (£8.00 / count)
(19% DISCOUNT!)
Free Delivery**
- 【Quick smart 】The smoke by the change in the intensity of the infrared light scattered in the smoke. When the light intensity received by the photosensitive receiver exceeds the set value, the piezoelectric horn will be driven to sound an alarm.
- 【Easy Installation】 No need to connect wires, just use the attached screws to fix the anchor plug on the mounting bracket, and rotate the smoke sensor to the right to the gap to complete the installation on the wall or ceiling.
- 【Reliable Security】 When the smoke sensor has a short circuit, open circuit or other bad conditions, the smoke alarm will automatically detect and send a fault signal. Protect family and property safety in time.
- 【Long product life】 Compared with other battery and machine integration products, the product has a 10-year lifetime and a 5-year replaceable DC 9V battery operated, which is more user-friendly.
- 【High standard, safe and reliable certification】 The smoke alarm has passed CE certification and British BRE certification, providing you with better safety and reliability.
8
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
Free Delivery**
- New optical smoke detection technology identifies smoke particles more accurately than its predecessors, reducing nuisance alarms
- Equipped with a "hush" control feature, enabling temporary silencing of nuisance alarms
- Mesh bug screen around alarm sensor significantly reduces false alarms
- Designed for wall mounting or free standing - supplied with fixings; 2 x screws and 2 x wall plugs (no wiring required)
- Featuring a simple test and reset button and 3 colour LED function for indications
- Audio and visual alerts indicate low battery & end of product life warning - silencable for 24 hours at a time
- Sleek & compact – Dimensions (HxDia): 36 x 102mm
- 9V Carbon Zinc battery included
- 5 Year Exclusive Warranty
- TUV certified to EN 14604:2005 and CE marked
9
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
Only today: 30% OFF!
£27.99
(30% DISCOUNT!)
Free Delivery**
- Informative LCD shows real-time CO concentrations and battery power to monitor for CO leaks and battery level; to save power, it will activate only when the device is tested or the ppm has reached the alarm level for a certain period
- This smoke and carbon monoxide alarm has long-lasting sensors and components that deliver a long life of up to 10 years; also includes a replaceable 3-year lithium battery
- Featuring a light and thin design, this combination smoke and carbon monoxide detector has a 20–40 m² (215–430 sq. ft) detection range, fully protecting you and your family from dangerous smoke and carbon monoxide
- This smoke and carbon monoxide detector is built with both a cutting-edge photoelectric smoke sensor and electrochemical CO sensor to deliver high consistency and reliability for double detection and protection
- The loud alarm tone is over 85 dB at 10 ft (3 m) to alert anyone in a deep sleep; with included screws and anchor plugs, this battery-operated unit can be installed effortlessly without an electrician
10
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
Free Delivery**
- Alarms should be tested by pressing the test button in accordance with the supplied instructions.
- Reliable performance
- The voice warnings given by this alarm are: "fire! Fire!" "Warning! Carbon monoxide" "Caution, carbon monoxide previously detected" "Hush mode activated" "Hush mode cancelled" "Low battery"
- Designed to be wall- or ceiling-mounted, this battery-powered unit is ideal for when space is limited but protection is paramount. It can be used in most locations throughout the home but check in in-pack guidelines for specific installation instructions
Compare Smoke Detectors and find the most suitable offer.
Smoke detectors are essential safety devices that can save lives by alerting individuals to the presence of smoke or fire. They are commonly installed in residential and commercial buildings to provide early warning and allow for prompt evacuation.
Smoke detectors work by sensing smoke particles in the air. There are different types of smoke detectors, including ionization smoke detectors and photoelectric smoke detectors. Ionization smoke detectors use a small amount of radioactive material to ionize the air, while photoelectric smoke detectors use a light beam that is disrupted by smoke particles. Both types are effective at detecting smoke, but they may respond differently to different types of fires. Combining both types in a single device, known as dual-sensor smoke detectors, offers the best level of protection.
When a smoke detector detects the presence of smoke, it emits a loud and distinctive alarm that alerts individuals to the potential danger. It is crucial to regularly test smoke detectors to ensure that they are functioning correctly and replace the batteries as needed. Additionally, smoke detectors should be strategically placed throughout the building, including near bedrooms and on every level. By following these guidelines, the chances of early detection of smoke or fire can be greatly increased.
In conclusion, smoke detectors are vital devices that play a crucial role in safeguarding homes and businesses from the dangers of smoke and fire. Through their ability to detect the presence of smoke particles in the air and promptly emit a loud alarm, smoke detectors provide individuals with essential early warning that allows them to take appropriate action to protect their lives and property. Regular testing and maintenance of smoke detectors are essential to ensure their effectiveness. By investing in and properly maintaining smoke detectors, individuals can significantly reduce the risk of fire-related incidents and increase the chances of a safe escape in case of emergency.
* the possibly used term "best" etc. refers only to our possibly subjective personal opinion.
** "Free Delivery" means that this is possible under the given conditions at the time of data retrieval from the relevant provider, but cannot be guaranteed. It is technically not possible to provide information in real-time. The shipping costs may vary under certain circumstances (different provider, place of delivery, etc.). The shipping costs shown in the further ordering process apply.
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Disclaimer:
1. The prices shown may have risen since the time we last updated them.
2. The actual price of the product on the seller’s site at the time of purchase will govern the sale.
3. It is not technically possible for the prices displayed above to be updated in real-time.
** "Free Delivery" means that this is possible under the given conditions at the time of data retrieval from the relevant provider, but cannot be guaranteed. It is technically not possible to provide information in real-time. The shipping costs may vary under certain circumstances (different provider, place of delivery, etc.). The shipping costs shown in the further ordering process apply.
Other IMPORTANT INFORMATION that we ask you to take note of:
We may receive a commission if you make a purchase via the links on our site. This has no impact on the placement of the products on our site. Our website is part of amazon associates program - Amazon, Amazon Prime, the Amazon Logo and Amazon Prime Logo are registered trademarks of Amazon, Inc. or its affiliates.
Disclaimer:
1. The prices shown may have risen since the time we last updated them.
2. The actual price of the product on the seller’s site at the time of purchase will govern the sale.
3. It is not technically possible for the prices displayed above to be updated in real-time.