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Smoke Detector And Carbon Monoxide Alarm Comparison - July 2025

7 Best Smoke Detector And Carbon Monoxide Alarm In the UK

1
Best Choice
9.7Exceptional
2
9.6Exceptional
3
Best Value
9.3Excellent
4
9.2Excellent
5
9.0Excellent
6
8.9Very Good
7
8.8Very Good
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Model

X-Sense Combination Smoke and Carbon Monoxide Alarm with LCD Display & 10-Year Battery, Smoke Alarm for Home Compliant with EN 14604 and EN 50291 Standards, SC07
Model
Kidde 10SCO Combination Smoke and Carbon Monoxide Alarm with Voice Notification
Model
Smoke Alarm and Carbon Monoxide Detector, Smoke Alarm and CO Alarms Battery Powered with LCD Digital Display and Sound Alarm, EN 50291 CO Monitor for Home Safety
Model
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
Model
FireAngel Combination Smoke and Carbon Monoxide Alarm for Home - SCB10-R, 10 Year Life, Dual Carbon Monoxide Detector and Smoke Alarm with Test and Hush Button - Combined CO and Fire Alarm - White
Model
FireAngel Smoke and Carbon Monoxide Alarm 2-Pack - SB1-R Toast Proof Optical Smoke Alarm for Home and FA3313 10-Year Life Carbon Monoxide Detector with Replaceable Batteries - CO and Fire Safety Set
Model
Meross Carbon Monoxide Detector, Dual Sensor Smoke and Carbon Monoxide Alarm, Smoke Alarm for Home with Test/Silence Button, 10-Year Battery Smoke Alarm, 85dB Fire Alarm, EN 14604 & EN 50291 Standard

Brand

X-Sense
Brand
Kidde
Brand
Yezala
Brand
AEGISLINK
Brand
Fireangel
Brand
Fireangel
Brand
meross

Reviews

15,196 reviews
Reviews
19,264 reviews
Reviews
944 reviews
Reviews
8,568 reviews
Reviews
3,868 reviews
Reviews
424 reviews
Reviews
4,584 reviews

Features

Easy installation

9.8
Easy installation
9.8
Easy installation
9.9
Easy installation
9.1
Easy installation
9.8
Easy installation
9.9
Easy installation
9.4

Worth the money

9.6
Worth the money
9.1
Worth the money
9.3
Worth the money
8.4
Worth the money
8.6
Worth the money
9.9
Worth the money
7.7

Battery duration

9.4
Battery duration
9.4
Battery duration
9.9
Battery duration
9.1
Battery duration
9.1
Battery duration
9.3
Battery duration
8.6

Instruction

9.3
Instruction
9.3
Instruction
9.9
Instruction
9.1
Instruction
9.9
Instruction
9.9
Instruction
9.4

Noise level

9.4
Noise level
9.9
Noise level
9.9
Noise level
9.6
Noise level
9.4
Noise level
9.9
Noise level
8.9

Tech Specs

item weight

490 g
item weight
420 g
item weight
60 g
item weight
280 g
item weight
200 g
item weight
128 g
item weight
135 g

batteries included

Yes
batteries included
Yes
batteries included
No
batteries included
Yes
batteries included
Yes
batteries included
Yes
batteries included
Yes

power source

Battery Powered
power source
Battery Powered
power source
Battery Powered
power source
Battery Powered
power source
Battery Powered
power source
Battery Powered
power source
Battery Powered

customer reviews

4.6 4.6 out of 5 stars 3, 799 ratings 4.6 out of 5 stars
customer reviews
4.6 4.6 out of 5 stars 4, 816 ratings 4.6 out of 5 stars
customer reviews
4.4 4.4 out of 5 stars 236 ratings 4.4 out of 5 stars
customer reviews
4.6 4.6 out of 5 stars 2, 142 ratings 4.6 out of 5 stars
customer reviews
4.5 4.5 out of 5 stars 967 ratings 4.5 out of 5 stars
customer reviews
4.4 4.4 out of 5 stars 106 ratings 4.4 out of 5 stars
customer reviews
4.6 4.6 out of 5 stars 1, 146 ratings 4.6 out of 5 stars

style

Standalone Model
style
Carbon Monoxide Alarm
style
Home, Hotel, Garage, Office
style
Standalone Model
style
Single
style
Protection
style
Smoke & CO Detector

batteries required

Yes
batteries required
Yes
batteries required
Yes
batteries required
Yes
batteries required
No
batteries required
Yes
batteries required
Yes

product dimensions

14.6 x 14.6 x 5.1 cm 490 g
product dimensions
0.1 x 4 x 15 cm 420 g
product dimensions
8 x 8 x 1 cm 60 g
product dimensions
13.7 x 13.8 x 5.2 cm 280 g
product dimensions
-
product dimensions
9 x 9 x 3.6 cm 128 g
product dimensions
2.8 x 12 x 12 cm 135 g

included components

1 Smoke and Carbon Monoxide Alarms, 1 Mounting Brackets, 2 Screws, 2 Anchor Plugs, 1 User Manual
included components
1 x Kidde 10SCO combination Smoke and Carbon Monoxide Alarm
included components
AAA Batteries NOT Included
included components
-
included components
Unit & sealed battery
included components
1 x Optical Smoke Detector, 1 x 9V Battery, 1 x Carbon Monoxide Detector, 2 x AA Batteries, 1 x Manual
included components
1 x Combination Smoke and Carbon Monoxide Detectors 1 x Mounting Bracket 1 x Screw Kit 1 x User Manual

battery cell type

Lithium
battery cell type
Alkaline
battery cell type
-
battery cell type
Lithium Metal
battery cell type
Lithium
battery cell type
Alkaline
battery cell type
Lithium Ion

color

1-pack
color
White
color
White
color
White
color
White
color
-
color
White

batteries

2 CR123A batteries required. included
batteries
1 AA batteries required. included
batteries
-
batteries
1 CR123A batteries required. included
batteries
1 Lithium Ion batteries required. included
batteries
-
batteries
1 CR123A batteries required. included

item package quantity

1
item package quantity
1
item package quantity
-
item package quantity
-
item package quantity
1
item package quantity
1
item package quantity
1

shape

Circular
shape
-
shape
Circular
shape
-
shape
Circular
shape
-
shape
-

size

Standalone Model
size
-
size
-
size
SC200
size
-
size
-
size
1 Pack

material

-
material
Carbon
material
F
material
-
material
Electronics, Plastic
material
-
material
-

Available On

Available On
Available On
Available On
Available On
Available On
Available On

Our Top 3 Picks

Here are the top 3 recommended products with more information to help you find the right product for you
  • 9.7
    1
    X-Sense
    11% Off

    X-Sense Combination Smoke and Carbon Monoxide Alarm with LCD Display & 10-Year Battery, Smoke Alarm for Home Compliant with EN 14604 and EN 50291 Standards, SC07

    9.8 Easy installation
    9.6 worth the money
    9.4 Battery Duration

    Why we love it

    10-year battery for continuous protection.
    Dual sensors for smoke and CO detection.
    Real-time CO levels on LCD display.
  • 9.6
    2
    Kidde

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

    9.9 Noise level
    9.8 Easy installation
    9.4 Battery Duration

    Why we love it

    Voice alerts for fire and carbon monoxide.
    Compact design fits anywhere in the home.
    Easy installation on walls or ceilings.
  • 9.3
    3
    Yezala
    30% Off

    Smoke Alarm and Carbon Monoxide Detector, Smoke Alarm and CO Alarms Battery Powered with LCD Digital Display and Sound Alarm, EN 50291 CO Monitor for Home Safety

    9.9 Easy installation
    9.9 Battery Duration
    9.9 Instruction

    Why we love it

    Quick and accurate CO detection.
    Easy to install and maintain.
    Real-time monitoring with digital display.

Our ranking system

The TopChoice.co.uk Team selects top-of-the-line items from a wide selection and conducts rigorous evaluations on almost all the products available on the internet. We rank each product based on how well it matches our criteria.We can ensure that the product is well-tested with the help of our expertise, experts, and artificial intelligence technology. TopChoice.co.uk requires consistent care for the products we review, ensuring that our assessments are always accurate and up to date.

Features

Our team of experts analyzes key attributes, capabilities, significance, and many more depending on the type of product to determine its effectiveness.
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Consumer Reviews

We ensure an evaluation of the ratings using references all over the internet for each product. With the help of our AI technology and professional review teams, we give weight to the worth of individual user experiences.
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Popularity

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Value for money

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When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.