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    Our wireless interlinked alarms, connected via radio frequency, provide 24/7 protection—even during power cuts. Choose from:

    • Battery-powered alarms with 10-year sealed lithium batteries (BS 5839-6:2019 Grade F1)

    • Mains-powered alarms with alkaline battery backup (Kitemarked, CE marked, BS 5839-6:2019 Grade D2)

    Fully compliant with UK Building Regulations, including Scottish legislation (Tolerable Standard), Welsh Housing Quality Standards, and Northern Ireland Building Regulations.

    Suitable for bungalows, multi-storey homes, flats, HMOs, sheltered accommodation, shared housing, and more.

    AlertX delivers compliant, reliable protection across the UK.
    11 products
     
    Build Your Own Bundle - Customise Your Own System - Wireless Interlinked Smoke & Heat Alarms - Sealed 10 Year Battery - AlertX
    Build Your Own Bundle - Customise Your Own System - Wireless Interlinked Smoke & Heat Alarms - Sealed 10 Year Battery - AlertX

    Build Your Own Bundle - Customise Your Own System - Wireless Interlinked Smoke & Heat Alarms - Sealed 10 Year Battery

    Choose from Battery Powered Smoke, Heat or Carbon Monoxide Alarms

    Alarms wirelessly interlink with each other, via radio-frequency

    Sealed & Tamper-proof 10 Year Long Life Battery – ensures protection, even during power cuts.

    5 year warranty included

    Kitemarked, CE marked and suitable for BS 5839-6: 2019 Grade F1 installations

    All UK Regulations Compliant – Welsh & Scottish 2022 legislation, NI Private Rented 2024, UK Holiday Lets 2023 & English Building Regs BS 5839-6
    Type of Alarm
    Quantity
    £24.99
    £39.99
    MORE DETAILS
    Battery Powered Wireless Interlinked Heat Alarm - 10 Year Sealed Lithium Battery - AlertX
    Battery Powered Wireless Interlinked Heat Alarm - 10 Year Sealed Lithium Battery - AlertX

    Battery Powered - Wireless Interlinked Heat Alarm - 10 Year Sealed Lithium Battery

    • 1 x Heat Alarm (Buy Multiple To Create Interlinked Alarm Network) 
    • Alarms wirelessly interlink with each other, via radio-frequency
    • Sealed & Tamper-proof 10 Year Long Life Battery – ensures protection, even during power cuts.
    • 5 year warranty included
    • Kitemarked, CE marked and suitable for BS 5839-6: 2019 Grade F1 installations
    • All UK Regulations Compliant – Welsh & Scottish 2022 legislation, NI Private Rented 2024, UK Holiday Lets 2023 & English Building Regs BS 5839-6
    Add Remote Control
    Quantity
    £24.50
    £39.99
    MORE DETAILS
    Battery Powered Wireless Interlinked Smoke Alarm - 10 Year Sealed Lithium Battery - AlertX

    Battery Powered - Wireless Interlinked Smoke Alarm - 10 Year Sealed Lithium Battery

    1 x Smoke Alarm (Buy Multiple To Create Interlinked Alarm Network) 

    Alarms wirelessly interlink with each other, via radio-frequency

    Sealed & Tamper-proof 10 Year Long Life Battery – ensures protection, even during power cuts.

    5 year warranty included

    Kitemarked, CE marked and suitable for BS 5839-6: 2019 Grade F1 installations

    All UK Regulations Compliant – Welsh & Scottish 2022 legislation, NI Private Rented 2024, UK Holiday Lets 2023 & English Building Regs BS 5839-6
    Add Remote Control
    Quantity
    £24.99
    £39.99
    MORE DETAILS
    Battery Powered Interlinked 2 Smoke Alarms & 1 Heat Alarm Kit - For Small Homes - AlertX - AlertX
    Battery Powered Interlinked 2 Smoke Alarms & 1 Heat Alarm Kit - For Small Homes - AlertX - AlertX
    Basic Pack - 2 Interlinked Smoke Alarms & 1 Heat Alarm - For Small Homes - Mains Powered - AlertX

    Battery Powered Wireless Interlinked - 2 Smoke Alarms & 1 Heat Alarm Kit - 10 Year Sealed Lithium Battery

    • 2 x Smoke Alarms, 1 x Heat Alarm
    • Alarms wirelessly interlink with each other, via radio-frequency
    • Sealed & Tamper-proof 10 Year Long Life Battery – ensures protection, even during power cuts.
    • 5 year warranty included
    • Kitemarked, CE marked and suitable for BS 5839-6: 2019 Grade F1 installations
    • All UK Regulations Compliant – Welsh & Scottish 2022 legislation, NI Private Rented 2024, UK Holiday Lets 2023 & English Building Regs BS 5839-6
    Add Remote Control
    Quantity
    £64.99
    £89.99
    MORE DETAILS
    Battery Powered Interlinked 3 Smoke Alarms & 1 Heat Alarm Kit - For Medium Homes - AlertX - AlertX
    Battery Powered Interlinked 3 Smoke Alarms & 1 Heat Alarm Kit - For Medium Homes - AlertX - AlertX
    Standard Pack - 3 Interlinked Smoke Alarms & 1 Heat Alarm - For Medium Homes - Mains Powered - AlertX

    Battery Powered Wireless Interlinked - 3 Smoke Alarms & 1 Heat Alarm Kit - 10 Year Sealed Lithium Battery

    • 3 x Smoke Alarms, 1 x Heat Alarm 
    • Alarms wirelessly interlink with each other, via radio-frequency
    • Sealed & Tamper-proof 10 Year Long Life Battery – ensures protection, even during power cuts.
    • 5 year warranty included
    • Kitemarked, CE marked and suitable for BS 5839-6: 2019 Grade F1 installations
    • All UK Regulations Compliant – Welsh & Scottish 2022 legislation, NI Private Rented 2024, UK Holiday Lets 2023 & English Building Regs BS 5839-6
    Add Remote Control
    Quantity
    £84.99
    £109.99
    MORE DETAILS
    Battery Powered Interlinked 2 Smoke Alarms, 1 Heat Alarm & 1 Carbon Monoxide Alarm Kit - For Small Homes With Gas Boiler - AlertX - AlertX
    Battery Powered Interlinked 2 Smoke Alarms, 1 Heat Alarm & 1 Carbon Monoxide Alarm Kit - For Small Homes With Gas Boiler - AlertX - AlertX
    Basic Plus - 2 Interlinked Smoke Alarms, 1 Heat Alarm & 1 Carbon Monoxide Alarm - For Small Homes With Gas Boiler - Mains Powered - AlertX

    Battery Powered Wireless Interlinked - 2 Smoke Alarms, 1 Heat Alarm & 1 Carbon Monoxide Alarm Kit - 10 Year Sealed Lithium Battery

    • 2 x Smoke Alarms, 1 x Heat Alarm & 1 Carbon Monoxide Alarm 
    • Alarms wirelessly interlink with each other, via radio-frequency
    • Sealed & Tamper-proof 10 Year Long Life Battery – ensures protection, even during power cuts.
    • 5 year warranty included
    • Kitemarked, CE marked and suitable for BS 5839-6: 2019 Grade F1 installations
    • All UK Regulations Compliant – Welsh & Scottish 2022 legislation, NI Private Rented 2024, UK Holiday Lets 2023 & English Building Regs BS 5839-6
    Add Remote Control
    Quantity
    £94.99
    £129.99
    MORE DETAILS
    Mains Powered Interlinked 2 Smoke Alarms & 1 Heat Alarm Kit with Battery Backup - AlertX - AlertX
    Mains Powered Interlinked 3 Smoke Alarms, 1 Heat Alarm + 1 CO Alarm Kit with Battery Backup - AlertX - AlertX
    Mains Powered Interlinked 2 Smoke Alarms & 1 Heat Alarm Kit with Battery Backup - AlertX - AlertX
    Basic Pack - 2 Interlinked Smoke Alarms & 1 Heat Alarm - For Small Homes - Mains Powered - AlertX

    Mains Powered Wireless Interlinked - 2 Smoke Alarms & 1 Heat Alarm Kit - With Battery Backup

    • 2 x Smoke Alarms, 1 x Heat Alarm 
    • Alarms wirelessly interlink with each other, via radio-frequency
    • Mains powered alarms, with alkaline battery backup – ensures protection, even during power cuts.
    • 5 year warranty included
    • Kitemarked, CE marked and suitable for BS 5839-6: 2019 Grade D2
    • All UK Regulations Compliant – Welsh & Scottish 2022 legislation, NI Private Rented 2024, UK Holiday Lets 2023 & English Building Regs BS 5839-6
    Quantity
    £104.99
    £149.99
    MORE DETAILS
    Battery Powered Interlinked 3 Smoke Alarms, 1 Heat Alarm + 1 CO Alarm Kit - For Medium Homes With Gas Boiler - AlertX - AlertX
    Battery Powered Interlinked 3 Smoke Alarms, 1 Heat Alarm + 1 CO Alarm Kit - For Medium Homes With Gas Boiler - AlertX - AlertX
    Advanced Pack - 3 Interlinked Smoke Alarms, 1 Heat Alarm + 1 CO Alarm - For Medium Homes With Gas Boiler - Mains Powered - AlertX

    Battery Powered Wireless Interlinked - 3 Smoke Alarms, 1 Heat Alarm + 1 CO Alarm Kit - 10 Year Sealed Lithium Battery

    • 3 x Smoke Alarms, 1 x Heat Alarm & 1 Carbon Monoxide Alarm 
    • Alarms wirelessly interlink with each other, via radio-frequency
    • Sealed & Tamper-proof 10 Year Long Life Battery – ensures protection, even during power cuts.
    • 5 year warranty included
    • Kitemarked, CE marked and suitable for BS 5839-6: 2019 Grade F1 installations
    • All UK Regulations Compliant – Welsh & Scottish 2022 legislation, NI Private Rented 2024, UK Holiday Lets 2023 & English Building Regs BS 5839-6
    Add Remote Control
    Quantity
    £114.99
    £149.99
    MORE DETAILS
    Mains Powered Interlinked 2 Smoke Alarms, 1 Heat Alarm & 1 Carbon Monoxide Alarm Kit with Battery Backup - AlertX - AlertX
    Mains Powered Interlinked 3 Smoke Alarms, 1 Heat Alarm + 1 CO Alarm Kit with Battery Backup - AlertX - AlertX
    Mains Powered Interlinked 2 Smoke Alarms, 1 Heat Alarm & 1 Carbon Monoxide Alarm Kit with Battery Backup - AlertX - AlertX
    Basic Plus - 2 Interlinked Smoke Alarms, 1 Heat Alarm & 1 Carbon Monoxide Alarm - For Small Homes With Gas Boiler - Mains Powered - AlertX

    Mains Powered Wireless Interlinked - 2 Smoke Alarms, 1 Heat Alarm & 1 Carbon Monoxide Alarm Kit - With Battery Backup

    • 2 x Smoke Alarms, 1 x Heat Alarm & 1 x Carbon Monoxide Alarm
    • Alarms wirelessly interlink with each other, via radio-frequency
    • Mains powered alarms, with alkaline battery backup – ensures protection, even during power cuts.
    • 5 year warranty included
    • Kitemarked, CE marked and suitable for BS 5839-6: 2019 Grade D2
    • All UK Regulations Compliant – Welsh & Scottish 2022 legislation, NI Private Rented 2024, UK Holiday Lets 2023 & English Building Regs BS 5839-6
    Quantity
    £134.99
    £179.99
    MORE DETAILS
    Mains Powered Interlinked 3 Smoke Alarms & 1 Heat Alarm Kit with Battery Backup - AlertX - AlertX
    Mains Powered Interlinked 3 Smoke Alarms, 1 Heat Alarm + 1 CO Alarm Kit with Battery Backup - AlertX - AlertX
    Standard Pack - 3 Interlinked Smoke Alarms & 1 Heat Alarm - For Medium Homes - Mains Powered - AlertX

    Mains Powered Wireless Interlinked - 3 Smoke Alarms & 1 Heat Alarm Kit - With Battery Backup

    • 3 x Smoke Alarms & 1 x Heat Alarm
    • Alarms wirelessly interlink with each other, via radio-frequency
    • Mains powered alarms, with alkaline battery backup – ensures protection, even during power cuts.
    • 5 year warranty included
    • Kitemarked, CE marked and suitable for BS 5839-6: 2019 Grade D2
    • All UK Regulations Compliant – Welsh & Scottish 2022 legislation, NI Private Rented 2024, UK Holiday Lets 2023 & English Building Regs BS 5839-6
    Quantity
    £139.99
    £185.99
    MORE DETAILS
    Mains Powered Interlinked 3 Smoke Alarms, 1 Heat Alarm + 1 CO Alarm Kit with Battery Backup - AlertX - AlertX
    Mains Powered Interlinked 3 Smoke Alarms, 1 Heat Alarm + 1 CO Alarm Kit with Battery Backup - AlertX - AlertX
    Mains Powered Interlinked 3 Smoke Alarms, 1 Heat Alarm + 1 CO Alarm Kit with Battery Backup - AlertX - AlertX
    Advanced Pack - 3 Interlinked Smoke Alarms, 1 Heat Alarm + 1 CO Alarm - For Medium Homes With Gas Boiler - Mains Powered - AlertX
    Mains Powered Interlinked 3 Smoke Alarms, 1 Heat Alarm + 1 CO Alarm Kit with Battery Backup - AlertX - AlertX

    Mains Powered Wireless Interlinked - 3 Smoke Alarms, 1 Heat Alarm + 1 CO Alarm Kit - With Battery Backup

    • 3 x Smoke Alarms, 1 x Heat Alarm & 1 x Carbon Monoxide Alarm
    • Alarms wirelessly interlink with each other, via radio-frequency
    • Mains powered alarms, with alkaline battery backup – ensures protection, even during power cuts.
    • 5 year warranty included
    • Kitemarked, CE marked and suitable for BS 5839-6: 2019 Grade D2
    • All UK Regulations Compliant – Welsh & Scottish 2022 legislation, NI Private Rented 2024, UK Holiday Lets 2023 & English Building Regs BS 5839-6
    Quantity
    £174.99
    £219.99
    MORE DETAILS

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    What Our Customers Are Saying

    Trusted by families, landlords, and homeowners nationwide.

    Full Coverage & Total Peace of Mind

    We went for the full interlinked set – smoke alarm upstairs, heat alarm in the kitchen, and the carbon monoxide one by the boiler. So glad we did. They all talk to each other, so if one goes off, the others do too – which is exactly what we needed with the kids in different rooms. Easy setup, and gives us real peace of mind.

    Claire M. – Leeds

    Reliable and Simple to Set Up

    Fitted three AlertX interlinked alarms across the house. Setup was straightforward and they synced without any fuss. The carbon monoxide alarm is a big bonus – something I’d put off for too long. My only gripe is I wish the mounting screws were a touch sturdier, but otherwise, very happy.

    David H. – Birmingham

    Smart Safety for Every Room

    Really impressed with the AlertX interlinked alarms. Bought the full bundle for our new place – smoke in the lounge, heat in the kitchen, CO near the fireplace. Tested them and they all go off together like clockwork. Great value and a must-have for any home. 

    Priya K. – London

    Easy Install, Maximum Protection

    We wanted proper protection after renovating our bungalow. The interlinked system from AlertX is brilliant – no more worrying if you’d hear the alarm from the other end of the house. All three (smoke, heat, and CO) work perfectly and installation was a doddle. Highly recommend.

    Tom & Ellie R. – Southampton

    Quick Setup & Great Build Quality

    I’m not very handy but even I managed to get the AlertX alarms installed in under half an hour. They feel really sturdy, and the interlinked function is brilliant – I tested it and they all triggered instantly. Feel much safer now, especially with the carbon monoxide alarm near the boiler.

    Emily S. – Oxford

    Works Exactly As Described

    Bought the bundle of smoke, heat, and CO alarms for our 3-bed house. Everything arrived quickly and was well packaged. The heat alarm is perfect in the kitchen – no more false alarms when I’m cooking. Would happily buy again if we move.

    Jack W. – Newcastle

    Top Marks for Safety & Peace of Mind

    We’ve got young kids and an open-plan home, so having all alarms interlinked was a must. The AlertX system is easy to install, looks tidy, and just works. I love that if the smoke alarm in the hallway goes off, we’ll hear it in the bedroom too. Highly recommend for families.

    Louise T. – Brighton

    Brilliant for First-Time Buyers

    We’ve just moved into our first home and wanted to get proper alarms sorted. The AlertX interlinked bundle was perfect – smoke in the hallway, heat in the kitchen, and carbon monoxide in the utility room. Everything was easy to install and the alarms are loud but not annoying. Exactly what we needed!

    Hannah L. – York

    Need assistance?

    We are here to help! 

    Tel: +44 7737637197 (Lines Open Mon - Fri 9am - 5pm) 

    CALL US

    EMAIL US 

    What should I do if I'm not sure which alarms I need?

    Our team are specialists in fire & carbon monoxide detection and fully up to date with UK fire safety regulations, including the latest Scottish legislation. We're more than happy to offer guidance and help you choose the right setup for your home. 

    Get in touch & we’ll be glad to assist.

    How long does delivery take? 

    Orders placed before 5pm (Monday to Friday) are dispatched the same day for next working day delivery.
    We use reliable courier services including Yodel and Royal Mail.
    Tracking details will be sent to you via email as soon as your order has been dispatched.

    Are the alarms compliant with UK and Scottish legislation?

    Yes. AlertX alarms meet UK standards (BS EN 14604 and BS 5446-2) and are compliant with the Scottish Government’s updated fire safety laws introduced in 2022.

    What are interlinked smoke and heat alarms?

    Interlinked alarms are connected wirelessly. If one alarm detects smoke or heat, all alarms in the network will sound, providing an early warning no matter where you are in the house.
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