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    Electrical4less Reviews 4.9 Based on 1452 reviews
    UK Mainland Free Delivery £75 + VAT
    30 Day Return Policy
    Next Day Delivery Cut Off Time 3PM*

    Smoke Alarms

    Our smoke alarms bring together trusted brands in one place. Explore smoke detectors, heat & carbon monoxide (CO) detectors, plus essential accessories like relays, RF links & bases.

    Easy to install, built to last & designed to keep homes and workplaces safe. Choose from a full range of fire & gas protection to suit your setup.

    230V + 10-Year Backup Alarms

    230V + 10-Year Backup Alarms (11)

    230V + 9V Backup Alarms

    230V + 9V Backup Alarms (5)

    Battery Alarms

    Battery Alarms (16)

    Smoke Detectors

    Smoke Detectors (6)

    Heat Alarms

    Heat Alarms (8)

    CO Alarms

    CO Alarms (7)

    Multi-Sensor Alarms

    Multi-Sensor Alarms (8)

    Alarm Accessories

    Alarm Accessories (26)

    Aico Ei146e Optical Smoke Alarm

    Aico Ei146e Optical Smoke Alarm
    6 in stock
    More available within 1 - 3 working days *
    SKU: Ei146e
    £19.99
    Aico Ei3016 Optical Smoke AlarmAico Ei3016 Optical Smoke Alarm 2

    Aico Ei3016 Optical Smoke Alarm
    9 in stock
    More available within 1 - 3 working days *
    SKU: Ei3016
    £41.50
    Aico Ei650iRF RadioLINK+ Battery Optical AlarmAico Ei650iRF RadioLINK+ Battery Optical Alarm 2

    Aico Ei650iRF RadioLINK+ Battery Optical Alarm
    2 in stock
    More available within 1 - 3 working days *
    SKU: Ei650iRF
    £59.86
    Aico Ei144e Heat Alarm

    Aico Ei144e Heat Alarm
    26 in stock
    More available within 1 - 3 working days *
    SKU: Ei144e
    £28.45
    Aico Ei3014 Heat AlarmAico Ei3014 Heat Alarm 2

    Aico Ei3014 Heat Alarm
    12 in stock
    More available within 1 - 3 working days *
    SKU: Ei3014
    £41.50
    Aico Ei3024 Multi-Sensor Fire AlarmAico Ei3024 Multi-Sensor Fire Alarm 2

    Aico Ei3024 Multi-Sensor Fire Alarm
    2 in stock
    More available within 1 - 3 working days *
    SKU: Ei3024
    £51.90
    Aico Ei3018 Carbon Monoxide AlarmAico Ei3018 Carbon Monoxide Alarm 2

    Aico Ei3018 Carbon Monoxide Alarm
    1 in stock
    More available within 1 - 3 working days *
    SKU: Ei3018
    £47.00
    Aico Ei168RC RadioLINK BaseAico Ei168RC RadioLINK Base 2

    Aico Ei168RC RadioLINK Base
    15 in stock
    More available within 1 - 3 working days *
    SKU: Ei168RC
    £44.99
    Aico Ei3000MRF SmartLINK Module

    Aico Ei3000MRF SmartLINK Module
    7 in stock
    More available within 1 - 3 working days *
    SKU: Ei3000MRF
    £43.90
    ESP ES1SLV Espire Optical Smoke Alarm Powered by Mains with a 10 Year Lithium Battery

    ESP ES1SLV Espire Optical Smoke Alarm Powered by Mains with a 10 Year Lithium Battery
    11 in stock
    More available within 1 - 3 working days *
    SKU: ES1SLV
    £30.79
    Aico Ei128RBU Hard Wired Relay Module With Battery Back UpAico Ei128RBU Hard Wired Relay Module With Battery Back Up 2

    Aico Ei128RBU Hard Wired Relay Module With Battery Back Up
    Delivery usually within 1 - 3 working days *
    SKU: Ei128RBU
    £39.90
    Aico Ei3028 Multi-Sensor Heat & CO AlarmAico Ei3028 Multi-Sensor Heat & CO Alarm 2

    Aico Ei3028 Multi-Sensor Heat & CO Alarm
    5 in stock
    More available within 1 - 3 working days *
    SKU: Ei3028
    £72.25
    Aico Ei630iRF RadioLINK+ Battery Heat Alarm

    Aico Ei630iRF RadioLINK+ Battery Heat Alarm
    5 in stock
    More available within 1 - 3 working days *
    SKU: Ei630iRF
    £61.10
    Aico Ei650I Battery Optical Alarm

    Aico Ei650I Battery Optical Alarm
    Delivery usually within 1 - 3 working days *
    SKU: Ei650i
    £19.82
    Aico Ei408 RadioLINK Switched Input ModuleAico Ei408 RadioLINK Switched Input Module 2

    Aico Ei408 RadioLINK Switched Input Module
    Delivery usually within 1 - 3 working days *
    SKU: Ei408
    £36.90
    Aico Ei129 Hard Wired Switched Input ModuleAico Ei129 Hard Wired Switched Input Module 2

    Aico Ei129 Hard Wired Switched Input Module
    4 in stock
    More available within 1 - 3 working days *
    SKU: Ei129
    £26.90
    Axiom ALRFHM Axiom Mains Heat Alarm with Battery Backup

    Axiom ALRFHM Mains Heat Alarm with Battery Backup
    1 in stock
    This item cannot be back-ordered
    SKU: ALRFHM
    £20.80 £17.90
    Aico Ei428 RadioLINK Relay Module

    Aico Ei428 RadioLINK Relay Module
    1 in stock
    More available within 1 - 3 working days *
    SKU: Ei428
    £57.90
    Axiom ALRFHB Axiom Heat Alarm with 10 Year Battery

    Axiom ALRFHB Heat Alarm with 10 Year Battery
    3 in stock
    This item cannot be back-ordered
    SKU: ALRFHB
    £18.49 £14.90
    Aico Ei3030 Multi-Sensor Fire and Carbon Monoxide AlarmAico Ei3030 Multi-Sensor Fire and Carbon Monoxide Alarm 2

    Aico Ei3030 Multi-Sensor Fire and Carbon Monoxide Alarm
    4 in stock
    More available within 1 - 3 working days *
    SKU: Ei3030
    £78.00

    Complete Protection with Smoke, Heat & CO Alarms

    At Electrical4Less, we offer a comprehensive range of smoke alarms  heat and carbon monoxide (CO) detectors to help keep homes, rental properties & workplaces safe.

    Choose from mains-powered, battery-operated, and wireless RF interlinked devices – all designed to meet modern safety requirements. Whether you’re protecting a single flat or a multi-storey building, we stock the right solutions.

    Accessories & System Integration

    We also stock essential accessories to build or upgrade your system, including:

    • RF bases & modules for wireless interlinking
    • Relay modules for fire panels or fan control
    • Mounting plates, controllers & test kits

    Authorised Distributor for Aico & ESP Espire

    We are an authorised UK distributor of Aico and ESP Espire — two of the most trusted brands in fire safety. Shop with confidence for genuine products, expert support & fast UK delivery.

    Smoke & Carbon Monoxide Alarm Regulations 2022

    Since 1st October 2022, all landlords in England must:

    • Install at least one smoke alarm per storey (BS EN 14604)
    • Install CO detectors in any room with a fuel-burning appliance (BS EN 50291-1)
    • Ensure alarms work at tenancy start
    • Repair or replace any faulty detector when notified

    Carbon Monoxide detectors & smoke alarms do not need to be interlinked — but doing so improves safety.

    Frequently Asked Questions

    Do landlords need to install smoke alarms in rented properties?
    Yes! Since October 2022, all landlords in England (private and social) must install at least one smoke alarm on every storey of a rented property that has a living space.

     

    Where should carbon monoxide (CO) alarms be installed?
    These must be fitted in any room with a fuel-burning appliance – like gas boilers, log burners, or oil heaters. It’s also recommended to install them in bedrooms, living areas, or rooms with a flue.

     

    Are cookers included in the CO alarm requirement?
    No, cookers are excluded from the legal requirement. But it’s still recommended (under British Standard BS EN 50292) to fit one in kitchens with fuel-burning cookers for extra safety.

     

    Do the alarms need to be mains-powered?
    Not necessarily. Landlords can install either battery-powered or mains-powered  alarms, as long as they meet the correct British Standards.

     

    Do CO and Smoke alarms have to be interlinked?
    No – there’s no legal requirement for the alarms to be interlinked. But interlinked alarms offer better protection by sounding throughout the property if one alarm goes off.

     

    Who is responsible for maintenance and testing?
    Landlords must check that all alarms are working at the start of a new tenancy. After that, it’s the tenant’s responsibility to test them regularly. If there’s a fault, landlords must repair or replace the alarm once notified.

     

    What’s the best setup for full fire & CO protection?
    The safest setup includes a mix of smoke, heat (especially for kitchens and garages), and Carbon Monoxide alarms. Interlinked or multi-sensor provide the highest level of protection.

     






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    Next Day Delivery

    Cut-Off Time and Order Information
    To ensure your order qualifies for next day delivery, please place your order by 3:00 PM. This is subject to all items being available on the shelf at the time of your order. For orders where the total value exceeds £150 + VAT (double our standard carriage-paid order value of £75 + VAT), we are happy to split the delivery into two shipments if some items are needed urgently and others are not immediately available. If you have any questions or need further assistance, feel free to reach out to us via WhatsApp for live support. We’re here to help!

    In Stock Delivery Policy

    Free Next-Day Delivery Over £75 + VAT:
    Orders above £75 + VAT qualify for free next-day delivery via DPD for in-stock items. While we strive for timely dispatch, we recommend placing orders early to avoid potential delays. Once dispatched, unexpected issues may arise despite the courier’s efforts.

    Orders Below £150 + VAT:
    To keep costs manageable, we dispatch your order once all items are ready, including products with longer lead times.

    Need items faster? You can pay for an additional delivery service to receive in-stock items sooner. Simply email us with your order details, and we’ll send you a payment link for the extra delivery cost.

    Orders Above £150 + VAT:
    For larger orders, we can split delivery at no extra cost. In-stock items will be sent immediately, with the remaining items dispatched once available.

    Backorder Delivery Policy

    Items with Lead Times (e.g., 1–3 Working Days):
    This means we need to source the product from our supplier before sending it to you. The estimated dispatch time is displayed on each product page.

    Out of Stock at Supplier:
    If an item is unavailable at the supplier, we will contact you promptly. You’ll have the option to choose an alternative product or request a full refund.

    Didn't find what you're looking for?

    No problem — message us directly on WhatsApp and we’ll help you out.

    We usually respond within minutes during working hours.

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