The 10 Best Fire Alarms Offers in UK - December 2025
Last updated: 16. December 2025
Fire Alarms 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: 20% OFF!
£59.99 (£20.00 / count)
(20% DISCOUNT!)
Free Delivery**
- Comprehensive Protection: This kit has one heat alarm and two smoke alarms, providing full coverage and home protection; not triggered by smoke, dust, or cooking vapor, an ideal heat alarm for kitchen
- Highly Accurate Detection: The interlinked smoke alarm use a photoelectric sensor for fast and accurate smoke detection; it detects a sudden rise in temperature, from 129°F (54°C) to 149°F (65°C), due to its sensitive NTC thermistor
- Wireless Interconnection: These are Link+ series alarms and can be interlinked to form a wireless network; all devices will go off when one is triggered, giving an early warning to everyone in your home
- 10-Year Battery Life: Equipped with sealed 10-year lithium batteries, so there’s no need to replace the battery frequently; your home is protected 24/7, even when the power goes out
- Durability & Easy Installation: Made of corrosion-resistant, flame-retardant material, they have long-term reliability and durability; easy to install on any wall or ceiling in minutes using the accessories included
- Ready to Use: 1 × XH02-W Heat Alarm, 2 × SD19-W Smoke Alarms, 3 × Mounting Bracket, 6 × Screws, 6 × Anchor Plugs, 3 × CR123A Batteries , 1 × User Manual included; simply press the test/silence button to interconnect your wireless smoke detectors (the alarms in one multi-pack have already been interconnected) and then start to protect your home
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: 79% OFF!
£69.99
(79% DISCOUNT!)
Free Delivery**
- Wide monitoring range: Smoke alarm can cover a wide area, ensuring timely detection of smoke in the event of a fire, allowing you to respond promptly and avoid causing huge losses.
- Optical sensing technology: The Smoke alarm adopts advanced optical sensing technology, which can quickly and accurately monitor the generation of indoor smoke and issue an alarm, ensuring your safety to the greatest extent possible.
- Fast response speed: Product has sensitive sensors that can detect smoke and issue an 80dB alarm in the early stages of a fire, allowing you to receive the signal of a fire in a timely manner, giving you more time to take countermeasures and effectively reducing losses.
- Long service life: This product has a lifespan of several years, reducing the frequency of replacement and maintenance. The product is powered by an independent battery and can be used even during power outages in the house. The design of replaceable batteries also ensures that the smoke alarm will not become unusable due to running out of battery, providing long-term safety protection for you.
- Easy installation: Product can be easily installed on walls or ceilings without the need for professional technicians or any wiring. It can be used normally through simple installation.
- LED indicator light: Smoke alarm comes with a work indicator light. When the product is working properly, the indicator light will flash regularly, allowing you to visually determine whether the product is working properly.
- Quality assurance: Product has undergone strict quality testing and is certified to meet the EN 14604 standard, providing you with professional safety assurance.
- Modern design: The appearance of the product adopts a fashionable design style, and the simple and generous appearance can meet the decoration style of most families, ensuring safety while not damaging the overall beauty of the room.
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: 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
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: 25% OFF!
£19.99 (£10.00 / kg)
(25% DISCOUNT!)
Free Delivery**
- 🏡 Advanced Optical Detection for Rapid Response || Safeguard your family with this 2 pack smoke alarm for home, featuring photoelectric (optical) sensing technology. It swiftly detects smoke from slow-burning fires — essential for enhancing protection in any home, office, flat, or caravan.
- ⏱️ 10-Year Sensor Life with Replaceable 5-Year Battery || Engineered for lasting safety, each fire alarm for home offers a durable 10-year lifespan and comes pre-equipped with a 5-year battery. No wiring, no fuss — just replace the battery when needed to keep your battery operated smoke alarm active.
- 📢 Loud 85dB Alarm & Flashing LED Light || When danger strikes, the alarm emits a powerful 85dB siren with a red LED alert — easily heard across bedrooms, kitchens, hallways, stairways, lofts, and offices. A reliable smoke detector for home with visual and audio warnings.
- 🔇 Silence Button to Prevent Nuisance Alarms || Minimise false alarms with the handy test/silence button — ideal for kitchens or areas with steam. Temporarily silence the alarm during cooking; it reactivates automatically for continued monitoring.
- ✅ EN14604 Certified with Auto Self-Test || These smoke detectors for home meet the strict EN14604 safety standard. An automatic self-check runs every 33 seconds, shown by a flashing LED, confirming the fire alarm's status without interrupting your day.
- 🛠️ Effortless DIY Installation || Designed for convenience, this battery smoke alarm installs in minutes using included screws and mounting brackets — no rewiring required. Great for landlords, new builds, or renters upgrading their home fire detectors.
- 🛡️ Durable Flame-Retardant Construction || Made from high-quality ABS+PC, this smoke alarm withstands high temperatures. Its flame-retardant design ensures extra protection and long-term reliability in all environments — from your home to your caravan or garage.
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: 40% OFF!
£29.99 (£15.00 / count)
(40% 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
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**
- 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.
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: 33% OFF!
£29.99
(33% DISCOUNT!)
Free Delivery**
- THERMOPTEK TECHNOLOGY: The FireAngel ST-622 Thermoptek smoke alarm uses patented multi-sensor optical smoke alarm technology making it a reliable choice among fire alarms for home.
- LONG LIFE BATTERY: Powered by a 10 year sealed lithium battery, this standalone FireAngel smoke alarm provides dependable performance, featuring an End of Life indication that reminds when the unit should be replaced.
- LARGE CENTRAL BUTTON: Designed with a large central button for Test and Smart Silence, this smoke alarm can mute a known nuisance alarm for 10 minutes while the smoke detectors for home continue monitoring smoke levels.
- EASY INSTALLATION: Installation is simple with automatic battery engagement on the base plate. Built-in bug mesh and dust compensation help reduce false alarms, ensuring consistent performance of your smoke alarms for home.
- SAFETY ASSURED: With an 85dB alarm sound level at 3m, the FireAngel ST-622 smoke alarm meets BS EN 14604:2005+AC:2008 standards, making it suitable for bedrooms, hallways, and living rooms as part of trusted fireangel smoke alarms.
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**
- 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.
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.
Free Delivery**
- Wide monitoring range: Smoke alarm can cover a wide area, ensuring timely detection of smoke in the event of a fire, allowing you to respond promptly and avoid causing huge losses.
- Optical sensing technology: The Smoke alarm adopts advanced optical sensing technology, which can quickly and accurately monitor the generation of indoor smoke and issue an alarm, ensuring your safety to the greatest extent possible.
- Fast response speed: Product has sensitive sensors that can detect smoke and issue an 80dB alarm in the early stages of a fire, allowing you to receive the signal of a fire in a timely manner, giving you more time to take countermeasures and effectively reducing losses.
- Long service life: This product has a lifespan of several years, reducing the frequency of replacement and maintenance. The product is powered by an independent battery and can be used even during power outages in the house. The design of replaceable batteries also ensures that the smoke alarm will not become unusable due to running out of battery, providing long-term safety protection for you.
- Easy installation: Product can be easily installed on walls or ceilings without the need for professional technicians or any wiring. It can be used normally through simple installation.
- LED indicator light: Smoke alarm comes with a work indicator light. When the product is working properly, the indicator light will flash regularly, allowing you to visually determine whether the product is working properly.
- Quality assurance: Product has undergone strict quality testing and is certified to meet the EN 14604 standard, providing you with professional safety assurance.
- Modern design: The appearance of the product adopts a fashionable design style, and the simple and generous appearance can meet the decoration style of most families, ensuring safety while not damaging the overall beauty of the room.
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.
Only today: 35% OFF!
£15.99
(35% DISCOUNT!)
Free Delivery**
- Attention: Smoke Alarm XS0G-SN is not compatible with SBS50 base station and does not support interconnect function or any APP function
- Quiet Standby Mode: Say goodbye to annoying standby flashes; this smoke alarm only lights up to alert you of alarms, low battery, faults, or when it’s time to replace it
- Slim Profile, Seamless Fit: With a slim thickness of just 25 mm and a diameter of 90 mm, this smoke detector fits perfectly on walls or ceilings; creates a discreet, stylish appearance that fits seamlessly into your space
- Easy Installation with Magnetic Mount: Quickly install your smoke detector using magnetic pads on most surfaces, or screws for rougher walls and ceilings; everything you need is included—just choose the method that works best for you; no tools or assistance needed
- 10-Year Battery Life: Equipped with a sealed CR123A lithium battery that provides continuous power for the full 10-year life of the alarm and requires no replacements
- Easy Maintenance and Transport: A manual switch lets you quickly turn off the device during renovations, moving, or transport to avoid false alarms and save battery
Compare Fire Alarms and find the most suitable offer.
A fire alarm is a crucial component of every building's safety system, designed to detect and alert individuals of a potential fire emergency. These devices are specifically built to sense smoke, heat, or flames and emit a warning signal, such as a loud siren or a flashing light, to notify occupants and prompt them to take immediate action.
Fire alarms come in various forms, including standalone smoke detectors, heat detectors, and comprehensive fire alarm systems. Standalone smoke detectors are typically battery-operated units that can be easily installed in homes or small buildings. On the other hand, heat detectors are ideal for environments with high levels of smoke or dust, such as kitchens or garages, as they are less prone to false alarms. Fire alarm systems, on the other hand, consist of interconnected devices throughout a building, including smoke detectors, heat detectors, manual call points, and control panels. These systems provide advanced protection in larger structures, automatically triggering alarms and alerting the fire department.
Fire alarms utilize advanced technology to efficiently detect the presence of fire. Smoke detectors, for example, employ ionization or photoelectric sensors to identify smoke particles or changes in light patterns caused by smoke. Heat detectors rely on either a fixed temperature or a rate-of-rise mechanism to sense abnormally high temperatures. Some advanced fire alarm systems also include features like carbon monoxide detection or wireless connectivity, allowing for remote monitoring and control.
To ensure the optimal functioning of fire alarms, regular maintenance is crucial. This includes periodic testing, cleaning, and battery replacement for standalone devices, as well as the inspection and servicing of fire alarm systems by professionals. Building occupants should also be educated on fire safety procedures, including how to respond when a fire alarm is activated and how to evacuate the premises in a swift and safe manner.
Overall, fire alarms are essential tools in preserving the safety of individuals and protecting properties from the devastation caused by fires. By promptly detecting and alerting occupants to the presence of flames or smoke, these devices provide a vital early warning system that can ultimately save lives and minimize property damage.
* 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.
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.
** "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.
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