WhichOne › DIY store & garden › home security system › fire safety › smoke detector

The best smoke detectors in comparison

Guaranteed independent and reliable
Millions of satisfied users every year
Last updated on 03.07.2025

Filter

Sort

Filter:Brand:Reduced items only:

Best choice

Google Nest Protect - Smoke Alarm And Carbon Monoxide Detector (Wired)

Google

free shipping

9,9

Check price

Show on Amazon

show more show less

Features

It tells you what the danger is and where it is. The Split-Spectrum Sensor looks for both fast-and slow-burning fires. It also has a 10 year CO sensor so that it can tell you where poisonous, invisible CO is hiding
You'll know, from anywhere. Nest Protect can alert your phone when something is wrong at home. You'll receive a message if the alarm goes off, if the batteries start to run low or if a sensor isn't working. And you can silence your Nest Protect using the Nest app
Thoughtful, not annoying. Nest Protect checks itself over 400 times a day and lets you know if something is wrong. It also has Steam Check, so a nice, relaxing shower shouldn't cause your alarm to shout at you. And Pathlight, so it can light your way at night
Easy to install. Nest Protect only takes minutes to set up with your iOS or Android device. Once you've added each of your Nest Protects to your Nest account, they will automatically connect to each other. Nest Protect is also simple to attach to the ceiling, thanks to a neatly designed back plate

£ 94.99

£ 94.99

£ 100.00

£ 100.00

£ 103.08

£ 109.00

£ 110.48

£ 112.72

£ 112.72

£ 146.00

Smoke Alarm, Interlinked Smoke and Heat Alarm Scotland Bundle, Pre-linked,10-Year Battery Life,Compliant with Scotland & England Law (2 Smoke + 1 Heat)

WISUALARM

38% off

free shipping

9,8

Offer ends in:

03Days

05hours

10minutes

53seconds

Check price

Show on Amazon

show more show less

Features

Pre-Linked for Easy Setup No complicated installation required - simply power on, test, and fit in seconds! The bundle comes pre-linked for your convenience, making installation a breeze.
Split-Spectrum Technology Utilizing the latest spilit spectrum technology, our smoke alarms are much more accurate and react faster than conventional sensors. Our heat alarms instantly activate when the ambient temperature exceeds the safe limit.

Recommendation

Safeliveo Wireless Interlinked Wifi Smoke Alarm Heat Alarm Carbon Monoxide Alarm with Remote Control, App notification,10 Year Battery, 85dB Buzzer, Silence and Test Function,CE & BS Certified 6Pack

Safeliveo

6% off

free shipping

9,8

Check price

Show on Amazon

show more show less

Features

Pre-Linked 1 x WiFi Smoke Alarm, 2 x Smoke Alarm, 1 x Heat Alarm, 1 x Carbon Monoxide Detector, 1 Remote Control. This bundle has been 'Pre-Linked', after you receive the alrms, you only need to test detectors after switching them on according to the instruction manual and connect the WiFi smoke detector to your mobile phone, pay attention to use 2.4g WiFi.
Reliable Wireless Interlinked Alarms CE-certified detectors, complies with the standards EN 14604 2005 and EN14604 2005 AC 2008. The LED of all the detector for home doesn't flash in normal state. When you sleep at night, there is no annoying flashing LED light, it will not affect your night's sleep.
Share Device with Your Family One of the detectors in this kit can be connected to mobile phone(Please check the instructions carefully) After the wifi smoke alarm is bound to Tuya app on your mobile, you can send the link to your friend or family member through the 'device share function, and after he she accepts it, then you can all receive the notification message when the smoke alarm sends out a notification.
Wireless Interlinked Alarms Up to 30 wireless alarms can be linked together, when an alarm starts, all alarms go off and each detector can protect an area of 40 square metres. It is recommended to install fire detectors in any bedroom, warehouse and basement. This interconnected smoke detector is covered by a two-year warranty, during the time of use, if you encounter any problems, please feel free to contact me anytime, we will do our best to solve the problem for you!
10 Years of Continuous Protection&Convenient Installation High reliability, up to 10 years of continuous operation due to high efficiency and high battery capacity. Saves you from frequent battery changes and provides uninterrupted 24 7 protection, even during power outages. The package contains double-sided adhesive tape as well as the screw set, you can install the detectors for home quickly and cleanly, choose the right installation method according to different ceilings.

FireAngel Optical Smoke Alarm 2-Pack - FA6620 10-Year Battery Smoke Alarms for Home with Test/Silence Button - Replacement for FireAngel ST-622/ST-620 - Early Smoke Detector Fire Alarm - White

Fireangel

free shipping

9,6

Check price

Show on Amazon

show more show less

Features

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.

£ 25.98

£ 23.95

£ 26.00

£ 26.00

£ 27.99

£ 28.00

£ 31.59

£ 34.99

Combination Smoke and Carbon Monoxide Alarm Detector,Dual Sensor Smoke Alarm and Carbon Monoxide Detector and Replaceable Battery Smoke and CO Alarm for Your Home, Garage, Office (2 Pack)

Generic

15% off

free shipping

9,6

Offer ends in:

03Days

05hours

10minutes

53seconds

Check price

Show on Amazon

show more show less

Features

2 in 1 Carbon Monoxide and Smoke Detector Protection from two deadly threats, The alarm protects against both dangerous smoke and carbon monoxide (CO) in the surrounding air; accurately detects CO from any potential sources. When carbon monoxide and smoke rise to alarm levels, the alarm provides a clear, loud warning when it is discovered. Bring you double protection from Uninterrupted 24 7 protection & large detection range.
Test Mode Button Carbon monoxide and smoke alarm has self-check function. It allows you to easily know the working status of the alarm. And test button enables (silent mode)you to test the alarm weekly, When encountering a non-emergency situation false alarms occur),you can immediately press the test button and the LED light will flash cyclically, indicating that it has entered the silent mode.
Quick & Easy Installation Battery (2*AA) operated device can be simply installed and maintained without the need for an electrician, carbon monoxide smoke detectors is easy to mount on any wall or ceiling with the included screws. You can hear the low power alarm when the power is close to run out, and won t miss the chance to change the new battery. Note (not supplied the batteries.Carbon monoxide is lighter than air, it is recommended to install it at a distance of 30cm from the ceiling.
LCD Digital Displays It is accurate ,reliable,highly sensitive. You can use the digital display to see the current CO concentration and the status of the machine's battery level. When carbon monoxide and smoke produce, the Combination smoke & carbon monoxide detectors will Instantly alerting you via an 85-dB alarm and a rapid-flashing LED indicator; the LED indicator won t disturb your sleep when the alarm is in normal working status.

ELRO FS1801 smoke detector complies with European standard EN14604-4 pieces, pack of 4, White

ELRO

free shipping

9,5

Check price

Show on Amazon

show more show less

Features

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.
EASY INSTALLATION The smoke detector is simple to install using the included mounting kit.
RELIABLE QUALITY Enjoy a worry-free experience with a 2-year warranty. Additionally, this smoke detector meets strict European safety standards (EN14604).

Smoke Alarm for Home, 10 Years Battery Smoke Detector Fire Alarm with Big Test/Silence Button, Conforms to EN14604 Standard, UKCA

KARUOTOP

50% off

9,5

Offer ends in:

04Days

05hours

10minutes

53seconds

Check price

Show on Amazon

show more show less

Features

Built-In 10-Year Battery The smoke alarm includes a sealed lithium battery that provides uninterrupted 24 7 protection for 10 years, eliminating the need for frequent battery replacements.
Dependability & Precision Certified by CE and UKCA, and compliant with EN 14604, this smoke alarm boasts precise smoke detection and a minimized false alarm rate. Upon sensing a potential danger, it immediately triggers an 85-decibel alarm to notify your family.
Automatic Self-Check The green LED flashes once every 60 seconds to check the battery level and sensor, ensuring they are working properly. The lighting has been adjusted to a sleep-friendly level to prevent any disturbance during rest.
Large Button & Ultra-Thin Design This slim smoke detector, only 28mm thick, is designed for easy installation anywhere. Test or mute the alarm with a long stick instead of a ladder, making it safer for older users who don't need to climb to confirm functionality.
Easy Installation Simple installation of this smoke alarm on any wall or ceiling using the included adhesive tape or screws. It's so easy to install that anyone can do it independently.

Kidde 10SCO Combination Smoke and Carbon Monoxide Alarm with Voice Notification

Kidde

free shipping

9,5

Check price

Show on Amazon

show more show less

Features

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"
Reliable performance
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

£ 24.90

£ 34.62

£ 43.45

Kidde 10SCO Combination 10 Year Life Carbon Monoxide and Smoke Alarm (1)

Safelincs

free shipping

9,3

Check price

Show on Amazon

show more show less

Features

Different voice warnings for smoke and CO with loud 85dB alarm noise.
Supplied with fixings 2 x screws and 2 x rawl plugs.

£ 25.80

£ 34.00

Smoke & Carbon Monoxide Alarm with Digital LCD Display, AEGISLINK Combination Smoke and CO Alarm Detector with 10-Year Lifespan & Replaceable Battery and Test/Silence Button, SC200

AEGISLINK

7% off

free shipping

9,3

Check price

Show on Amazon

show more show less

Features

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 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

£ 27.99

£ 30.03

This ranking is created through algorithmic analysis of millions of products tailored specifically to your search. We aim to find the most suitable product for you based on manufacturer information and price. The ranking reflects our opinion and should serve as a good starting point for your purchase. We would like to point out that we have not tested the products ourselves and link to selected online shops and partners from which we may receive compensation.

You might also be interested in these smoke detectors.

X-Sense Wireless Interlinked Smoke Alarms and Heat Alarm Scotland Bundle, 1 Heat Alarm & 2 Smoke Alarms, Sealed 10-Year Lithium Battery, EN 14604 Standard and BS 5446 Compliant, Link+ Series, HS21

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

~~£ 59.99~~ free shipping

Check price

XINDUM Wireless Interlinked Smoke Alarms for Home, Heat Detector, Carbon Monoxide Detector with LCD Digital Display, Remote Controller, Fire Alarms with 10 Year Battery, Fire Detectors Bundle for Home

Interlinked Fire Alarms Bundle 2 Smoke Alarm, 1 Heat Alarm, 1 Carbon Monoxide Detector, 1 Remote Controller. No matter which somke detector trigger a alarm, the other linked alarms will sound after receiving the signal. You and your families can get the alarm at first time and take effective actions to put out the fire or escape from dangous place.

~~£ 89.99~~ free shipping

Check price

Ruan Smoke Alarms for Home 9V Battery Photoelectric Smoke Alarm Conforms to EN14604 Standard Smoke Detector with 5 years battery 4 Pack

Replaceable battery The fire alarm is equipped with a 9V battery with a service life of 5 years and can be replaced by itself.

~~£ 29.99~~

Only:

38hrs

10min

54sec

Check price

Wired Smoke Alarm, Interlinked Fire Alarm with LED Indicator and Silence Button, 10-Year Life Smoke Detector with 9V Battery Backup, Mains-powered, Conforms to EN14604 Standard, 2 Pack

HARDWIRED SMOKE DETECTOR - Hardwired interconnected smoke alarm, can connect up to 12 alarms. It is more precise and stable than wireless interconnection.

free shipping

Check price

STANDARD BUNDLE 3 x Smoke Alarm, 1 x Heat Alarm PRE LINKED This bundle has been Pre Linked for your convenience. There is no setup required. Simply power the alarms on, test them and then fit them around your home! Done in seconds!

free shipping

Check price

2 Pack Smoke Alarms for Home – 10-Year Life Fire Alarms with 5-Year Replaceable Battery, EN14604 Certified Photoelectric Smoke Detector with Silence Button, LED Light, for Kitchen, Caravan, Office

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.

~~£ 19.99~~

Check price

CPVAN Wireless Interlinked Smoke, Heat & Carbon Monoxide Alarm Bundle, Scotland & England Law Compliant | 10-year Battery Life, Pre-Linked Fire Detectors for Home,6 Pack + 2 Remote（2nd Generation）

Compliant with New Scottish & English Regs Totally compliant with Both The New Scotland Regs (Feb 2022) and The New England Regs (Oct 2022). Certified to BS EN14604 2005 AC 2008, BS 5446-2 2003 & EN 50291-1 2018 standards.

free shipping

Check price

Smoke Alarm for Home, HATHEPHS 10 Years Battery Smoke Detector with Large Test/Silence Button, Conforms to EN14604 Standard, UKCA

Automatic Self-Check The green LED indicator flashes once every 60 seconds, performing a self-check of both the battery level and sensor to ensure they are functioning correctly and providing reliable protection.

~~£ 16.99~~

Check price

saf First Alert smoke and co combo

First Alert SCO5CN Battery Operated Combination Carbon Monoxide Smoke Alarm by First Alert

free shipping

Check price

Putogesafe Smoke Alarm for Home, Smoke Detector with 10-year Service Life/ 1-year replaceable Battery, Fire Alarm Battery Operated, Conforms to EN 14604 Standard, photoelectric Smoke Detector,2 pcs

Recommended Smoke Alarm A high-quality sensor that reacts quickly to smoke, causes less false alarms. In case of fire, the smoke detector emits an alarm of 85 dB with flashing red LED.

free shipping

Check price

ZYTA Smoke Alarm for home,Fire Smoke Detector with 5-year Replaceable Battery,TEST/MUTE Button,LED Indicator,Battery Powered,1902(1 Pack)

LONG LIFESPAN - The fire alarms for home are manufactured in accordance with EN14604 standards and have a service life of up to 10 years. Equipped with a 5-year replaceable 9V battery. You can replace the battery themselves when power is depleted

~~£ 13.99~~

Check price

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)

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.

~~£ 17.99~~

Check price

The best smoke detectors in comparison

Guaranteed independent and reliable

Features

Features

Features

Features

Features

Features

Features

Features

Features

Features

You might also be interested in these smoke detectors.

Our offer