Best Smoke Alarms Deals - Top 10 in October 2025

Last Update: 01. November 2025
1
Best Choice
9.9
X-Sense

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
Colour Brand Weight
- X-Sense 178 g
£2999 (£15.00 / count)
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2
Best Value
9.8
X-Sense
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
Colour Brand Weight
White X-Sense 178 g
£941
RRP: £16.99 -45%
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3
9.8
FireAngel

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.
Colour Brand Weight
White Fireangel 138 g
£2099 (£10.50 / count)
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4
9.7
Filotimo

FREE delivery**
  • Greater Safety & Wide Applications: Featuring an upgraded smoke sensor with the latest photoelectric technology, this smoke detector responds to smoke faster than traditional alarms with a louder than 85dB alarm and fast-flashing LED indicator, giving you more time to control the fire or escape safely.
  • Self-Test and Mute Features: Equipped with a low battery warning so you know when it's time to replace the device for safety reasons; If non-emergency smoke (e.g. cooking fumes) is causing annoying alarms, you can easily silence them by pressing the test/silence button.The photoelectric sensor detects smoke while minimizing false alarms.
  • Easy to Install and Red Flash Light Design: This mini smoke alarm is only 4.9*1.4inches (125*35mm), making it easy to install unobtrusively anywhere; Easily mount it to any wall or ceiling with the included screws and wall plugs.
  • Wide Range of Applications and Loud Alarm: The alarm is suitable for home, campus, office, hospital, hotel, restaurant, factory, warehouse. Loud 85 dB buzzer.This smoke detector is equipped with a loud buzzer with a volume of 85 dB within a diameter of 3 meters in accordance with the EN 14604 standard.
  • Refund and Warranty: Our Smoke detector with durable material and fashion outer design,if you face any quality problem, please contact us any time.Our team will happy to help answer any questions, please contact us feel free so we can take care of you right away!
Colour Brand Weight
White Filotimo 160 g
£1299
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5
9.6
Yezala

FREE delivery**
  • DUAL PROTECTION: Features both smoke and carbon monoxide detection capabilities in a single unit with clear digital LCD display for real-time monitoring
  • LED Display: An easy-to-read digital display shows CO concentration levels in parts per million (ppm). USER-FRIENDLY CONTROLS: Equipped with an easily accessible test/silence button for regular testing and temporary alarm silencing when needed
  • RELIABLE SENSORS: Advanced electrochemical sensors accurately detect and monitor carbon monoxide levels.
  • LOUND ALARM: An 85-decibel alarm sounds to alert you of potential CO poisoning risks.
  • BATTERY OPERATION: Battery-powered design ensures continuous protection even during power outages, with low-battery warning indicator
Colour Brand Weight
White Yezala 10 g
£1699
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6
9.6
FireAngel Safety Technology Ltd
TODAY 31% OFF!
£29.99 (31% 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.
Colour Brand Weight
White Fireangel 155 g
£2069
RRP: £29.99 -31%
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7
9.5
FireAngel Safety Technology Ltd
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.
Colour Brand Weight
White Fireangel 113 g
£1200 (£6.00 / count)
RRP: £20.49 (£10.24 / count) -41%
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8
9.4
Kidde

FREE delivery**
  • DUAL PROTECTION: Two detectors combined into one space-saving unit; the Kidde K10SCO provides vital protection against carbon monoxide (CO) and fire risks in a single detector
  • 10 YEAR WARRANTY: Backed by a comprehensive 10 year manufacturer's warranty for complete peace of mind that your alarm will provide reliable ongoing protection
  • VOICE ALERTS & ALARM: "Fire Fire" or "Warning! Carbon Monoxide!" voice alerts combined with an 85dB sounder provide an audible warning and clear indication of which danger has been detected
  • BATTERY POWERED: Powered by 2 x AA replaceable alkaline batteries (included). The easy to access front battery compartment makes replacing batteries quick and simple
  • EASY TO INSTALL: Designed to be wall or ceiling mounted, the K10SCO is ideal for when space is limited but protection is paramount; It can be used in most locations throughout the home (refer to included installation instructions)
  • SAFETY APPROVED: CE and UKCA marked, and Kitemarked to the most up-to-date British Standards for smoke alarms (BS EN 14604:2005) and carbon monoxide alarms (BS EN 50291-1: 2018). Suitable for BS 5839-6: 2019 Grade F2 installations
Colour Brand Weight
White Kidde 420 g
£2490
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9
9.3
Status

FREE delivery**
  • Status photoelectric smoke alarm for reliable fire detection Status provides peace of mind with this 9V photoelectric smoke alarm designed for use in homes, flats or rental properties. Ideal for early warning detection of slow-smouldering fires in bedrooms, hallways and kitchens.
  • Photoelectric sensor for faster smoke response Fitted with a photoelectric sensor that reacts quickly to visible smoke from smouldering materials like furniture or overheated wiring. Reduces false alarms from cooking compared to traditional ionisation detectors.
  • Battery operated with 9V battery included Ready to use out of the box, this alarm comes complete with a 9V battery for quick, easy installation without wiring. Ideal for homeowners, landlords or tenants looking for hassle-free fire protection.
  • Test button and low battery warning for safety checks Includes a manual test button for regular function checks, plus a built-in low battery alert to ensure it remains active. Easy to maintain with clear audio signals when the battery needs replacing.
  • Compact white design for discreet ceiling or wall mounting Finished in neutral white with a slim profile, this alarm blends neatly into any home décor. Suitable for mounting in bedrooms, hallways, kitchens or lounges to meet fire safety standards.
Colour Brand Weight
- Status 160 g
£697
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10
9.2
Kidde
TODAY 4% OFF!
£20.73 (4% DISCOUNT!)

  • Interlink with up to 23 Firex hard-wired alarms
  • Combined test/hush button
  • Auto reset
  • Tamper-resistant locking device
  • Mains operation
  • The Kidde KF2 smoke alarm is a mains powered alarm contains battery in it as a backup in case of a power cut.
Colour Brand Weight
White Kidde 280 g
£1999
Was: £20.73 -4%
Amazon
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* the possibly used term "best" etc. refers only to our possibly subjective personal opinion.
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More information and FAQs about the featured Smoke Alarms in this comparison:


Technical Details
Colour White
Brand Fireangel
Weight 155 g
Advantages
  • Long-lasting
  • Enhanced sensitivity
  • Easy to install
FAQs about FireAngel ST-622T Thermoptek Smoke Alarm – 10 Year Sealed Lithium Battery, Multi-Sensor Optical Detection, Easy Install, Standalone FireAngel Smoke Alarm for Home
What is the lifespan of the Fireangel ST-622T smoke alarm?
The Fireangel ST-622T has a lifespan of 10 years.
Does the Fireangel ST-622T have a thermal enhancement feature?
Yes, the Fireangel ST-622T has a thermally enhanced optical sensor.
What color is the Fireangel ST-622T smoke alarm?
The Fireangel ST-622T is white in color.
Is the Fireangel ST-622T easy to install?
Yes, the Fireangel ST-622T is easy to install with its included mounting bracket and fixing screws.
Technical Details
Colour White
Brand Kidde
Weight 280 g
Advantages
  • Reliable
  • Battery backup
  • Smoke detection
  • Mains powered
FAQs about Kidde Firex KF20 Optical Smoke Alarm - Mains Operated with Battery Back Up
Is the Kidde Firex KF20 Optical Smoke Alarm mains operated?
Yes, the Kidde Firex KF20 Optical Smoke Alarm is mains operated.
Does the Kidde Firex KF20 Optical Smoke Alarm have battery backup?
Yes, the Kidde Firex KF20 Optical Smoke Alarm has a battery backup.
What type of smoke detection does the Kidde Firex KF20 Optical Smoke Alarm use?
The Kidde Firex KF20 Optical Smoke Alarm uses optical smoke detection.
Is the Kidde Firex KF20 Optical Smoke Alarm easy to install?
Yes, the Kidde Firex KF20 Optical Smoke Alarm is easy to install.
Can the Kidde Firex KF20 Optical Smoke Alarm be interconnected with other alarms?
Yes, the Kidde Firex KF20 Optical Smoke Alarm can be interconnected with other compatible alarms.

General information you should know about Smoke Alarms:


Smoke alarms are an essential part of every home's safety equipment. They are designed to detect the presence of smoke in the air and alert occupants to potential fire hazards. These devices can save lives by providing early warning signs and giving people ample time to evacuate the premises or call for help. Considering the importance of smoke alarms, it is crucial to choose the right one for your home. In this article, we will provide a general overview of smoke alarms, their types, and some key factors to consider when purchasing one. Furthermore, we will mention a popular product comparison website that can assist you in finding the perfect smoke alarm for your needs.

Smoke alarms come in various types, including ionization alarms, photoelectric alarms, and dual-sensor alarms. Ionization alarms are highly effective at detecting flaming fires, while photoelectric alarms are best at detecting smoldering fires. Dual-sensor alarms combine both techniques for maximum detection capabilities. It is recommended to have a combination of these alarms throughout your home for comprehensive fire detection.

When purchasing a smoke alarm, it is important to consider a few factors. Firstly, look for a smoke alarm that has been tested and approved by recognized safety organizations such as UL (Underwriters Laboratories) or CSA (Canadian Standards Association). This ensures that the device meets industry standards and is reliable. Additionally, consider the power source of the smoke alarm. Battery-powered alarms are easy to install and maintain, while hardwired alarms are connected to the electrical system of the house and often come with backup batteries.

Another important feature to consider is the interconnectivity of the smoke alarms. Interconnected alarms communicate with each other, so when one alarm goes off, all the interconnected alarms in the house will also sound. This is especially useful if you have a larger home or multiple levels, as it ensures that everyone can hear the alarm regardless of their location. Some smoke alarms also come with additional features like carbon monoxide detection or voice alerts, which can provide an extra layer of safety.

To make the process of choosing the right smoke alarm easier, you can visit product comparison websites like XYZ.com. These platforms provide in-depth analysis and comparison of various smoke alarms available in the market. They consider factors like price, features, customer reviews, and overall performance to help you make an informed decision. By using such a platform, you can save time and effort in researching different smoke alarms individually and find the one that suits your needs and budget.

In conclusion, smoke alarms are vital for every household's safety. They can provide early warnings in the event of a fire, giving you and your loved ones precious time to evacuate. When purchasing a smoke alarm, consider factors such as alarm type, power source, interconnectivity, and additional features. Utilizing a product comparison website can be highly beneficial in finding the perfect smoke alarm for your home. Invest in a reliable smoke alarm today and prioritize the safety of your family and property.