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All Smoke Alarms

Smoke alarms serve as your first line of defence against fire dangers, alerting you to potential threats before they become life-threatening. As the UK's number one online fire safety company, Safelincs offers over 6,000 products, including a wide range of smoke alarms to suit various requirements and settings.

Read more about smoke alarms...

Types of Smoke Alarms Available

Battery Smoke Alarms

Battery-operated smoke detectors provide flexible installation options without wiring requirements. Modern units feature:

  • Replaceable AA batteries or lithium batteries
  • Easy installation in minutes
  • No electrician costs

Mains Smoke Alarms

Mains powered smoke alarms connect directly to your home's electrical system, offering:

  • Continuous protection
  • Battery backup during power cuts
  • Lower long-term maintenance needs
  • Greater reliability for permanent installations

Interlinked Smoke Alarms

Interlinked smoke alarms communicate with each other, creating a network throughout your home.

  • When one alarm detects smoke, all alarms sound
  • Radio frequency (RF) and wire interlink options available
  • Increased warning time, especially in multi-storey buildings
  • Options for both battery and mains-powered units

Photoelectric Smoke Alarms

Also known as optical smoke alarms, these units use light detection technology.

  • Most effective at detecting slow, smouldering fires
  • Less prone to false alarms from cooking fumes
  • Ideal for living areas and escape routes
  • The NFCC and FRS recommend having at least one on every floor of your home
  • Optical smoke alarms are not suited to garages, bathrooms or kitchens

Heat Detectors

Heat detectors respond to temperature rather than smoke particles.

  • Perfect for kitchens and garages where normal smoke alarms might cause false alarms
  • Activate when temperature rises rapidly or reaches a fixed point
  • Complement smoke alarms for total home coverage
  • Available in both battery and mains versions

Combined Detection Systems

For enhanced protection, consider combined detection units:

  • Smoke and carbon monoxide alarms in one device
  • Smoke and heat detection capabilities
  • Reduces installation requirements and wall clutter
  • Clear voice or visual indicators for threat type

Advanced Features to Consider

When selecting smoke alarms, several features can improve functionality:

  • Test buttons for regular alarm checking
  • Hush buttons to silence false alarms temporarily
  • Sleep mode for reduced nighttime LED flashing
  • Voice alerts that specify threat type and location
  • Remote testing capabilities for hard-to-reach installations
  • Mobile device alerts for when you are away from home

Alarms for Specific Needs

Safelincs provides solutions for all users:

  • Visual alert systems with strobe lights for deaf people
  • Voice alerts for the visually impaired
  • Vibrating pad alerts that can be placed under pillows
  • Locate functions to identify which alarm has triggered
  • Fire alarm kits with multiple detectors for whole-home installation

British Standards Compliance

All smoke alarms sold by Safelincs meet British safety standards:

  • BS EN 14604 for general smoke alarm requirements
  • Grade D1/D2 for mains powered alarms with battery backup
  • Grade F1/F2 for battery-powered units
  • 2022 Welsh and Scottish legislation-compliant options

Trusted Brands at Safelincs

Our selection includes market-leading manufacturers:

  • FireAngel
  • Aico
  • Kidde
  • UltraFire
  • Firehawk
  • Hispec

Ionisation Smoke Alarms

Optical alarm products replace ageing ionisation alarms, which are being phased out industry-wide due to their radioactive sensors, which make them dangerous to manufacture, costly to transport and environmentally hazardous to dispose of. Optical smoke alarm technology has advanced sufficiently to be interchangeable with ionisation alarms while avoiding radioactive elements. Safelincs has stopped selling ionisation alarms and encourages all customers to purchase our optical alternatives instead.

Smoke Detector Maintenance

To maintain proper function:

  • Test alarms weekly using the test button (Safelincs provides a free safety reminder service that sends email or text alerts at your chosen intervals, with no fees, no junk mail, and the option to cancel anytime)
  • Replace batteries annually (unless using 10-year sealed units) or when the low battery warning sounds
  • Replace entire units according to manufacturer guidelines, typically 10 years
  • Keep smoke detector parts clean from dust and debris

Selecting the right smoke alarms ensures your home remains protected against fire risks. With Safelincs as your fire safety partner, you gain access to expert guidance, quality products and ongoing support. Browse our complete range of smoke alarms to find the perfect solution for your safety needs.

Image of the Kidde 10Y29 Optical Smoke Alarm & K10LLCO Carbon Monoxide Detector Special Offer
Free Delivery

Kidde 10Y29 Optical Smoke Alarm & K10LLCO Carbon Monoxide Detector Special Offer

  • FREE delivery
  • 10 year battery powered optical smoke alarm
  • Certified to BS EN 14604: 2005
  • 10 year battery powered carbon monoxide detector
  • Kitemarked and CE marked
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4.7 out of 5 stars

Save 9%

Now: £34.19 inc VAT

£28.49 ex VAT

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Image of the 10 Year Longlife Battery Radio-Interlinked Smoke Alarm - Aico Ei650RF

10 Year Longlife Battery Radio-Interlinked Smoke Alarm - Aico Ei650RF

  • Battery: Built-in, lasts the lifetime of your alarm
  • Warranty: 5 year warranty
  • Wirelessly interlinks via radio frequency with up to 12 alarms
  • Twist-on base, simple to install
  • LED function indicators
  • Suitable for BS 5839-6: 2019 Grade F1 installations
  • Certified to BS EN 14604: 2005
  • Also suitable for the 2022 Scottish legislation
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4.7 out of 5 stars

Save £83.54

Now: £87.68 inc VAT

£73.07 ex VAT

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Image of the 10 Year Longlife Battery Radio-Interlinked Heat Alarm - Aico Ei603RF

10 Year Longlife Battery Radio-Interlinked Heat Alarm - Aico Ei603RF

  • Battery: Built-in, lasts the lifetime of your alarm
  • Warranty: 5 year warranty
  • Radio-interlinked heat alarm
  • Built-in RadioLINK+ repeater function
  • Self-tests every 16 seconds
  • Twist-on base design for simple installation
  • Suitable for BS 5839-6: 2019 Grade F1
  • Kitemarked to BS 5446-2: 2003
  • Also suitable for the 2022 Scottish legislation
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4.7 out of 5 stars

Save £78.12

Now: £86.27 inc VAT

£71.89 ex VAT

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Image of the Optical Smoke Alarm with Replaceable 3 Year Alkaline Batteries and Escape Light – FireAngel FA6611-R

Optical Smoke Alarm with Replaceable 3 Year Alkaline Batteries and Escape Light – FireAngel FA6611-R

  • Battery: 2 x AA three year replaceable batteries
  • Warranty: 5 year warranty
  • Extra bright light to illuminate your escape route
  • Suitable for BS5839-6: 2019 Grade F2 installations
  • Certified to BS EN 14604: 2005
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5 out of 5 stars

£23.03 inc VAT

£19.19 ex VAT

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Image of the Optical Smoke Alarm with Replaceable 5 Year Alkaline Batteries – FireAngel FA6615-R

Optical Smoke Alarm with Replaceable 5 Year Alkaline Batteries – FireAngel FA6615-R

  • Battery: 2 x AA 5 year replaceable batteries
  • Warranty: 5 year warranty
  • Suitable for leisure accommodation vehicles
  • Reduced volume test function
  • Suitable for BS 5839-6: 2019 (Grade F2 installations)
  • Certified to BS EN 14604: 2005
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£20.39 inc VAT

£16.99 ex VAT

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Image of the 10 Year Longlife Battery Optical Smoke Alarm - FireAngel FA6620-R

10 Year Longlife Battery Optical Smoke Alarm - FireAngel FA6620-R

  • Battery: 10 year sealed lithium battery
  • Warranty: 5 year warranty
  • Suitable for leisure accommodation vehicles
  • Compliant to BS 5839-6: 2019 (Grade F1 installations)
  • Certified to BS EN 14604: 2005
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4.7 out of 5 stars

£22.43 inc VAT

£18.69 ex VAT

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Image of the 10 Year Longlife Battery Heat Alarm - FireAngel FA6720-R

10 Year Longlife Battery Heat Alarm - FireAngel FA6720-R

  • Battery: 10 year sealed lithium battery
  • Warranty: 5 year warranty
  • Suitable for travel accommodation such as motorhomes
  • Quiet test and Sleep Easy function
  • Kitemarked to BS 5446-2: 2003
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4.7 out of 5 stars

£25.43 inc VAT

£21.19 ex VAT

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Image of the 10 Year Longlife Battery Optical Smoke Alarm - Ei650

10 Year Longlife Battery Optical Smoke Alarm - Ei650

  • Battery: Built-in lithium battery
  • Warranty: 5 year warranty
  • Test and hush buttons
  • Battery 'low' warning
  • LED power and function indicator
  • Suitable for BS 5839-6: 2019 Grade F1 installations
  • Certified to EN 14604: 2005
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4.5 out of 5 stars

£37.91 inc VAT

£31.59 ex VAT

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Image of the Battery Optical Smoke Alarm - Kidde 2030-DSR

Battery Optical Smoke Alarm - Kidde 2030-DSR

The Kidde 2030-DSR optical smoke alarm is easy to use and great value, with a low-profile, unobtrusive design. Automatic low battery and end of life warnings which can be silenced for 24 hours.

  • Battery: 9 Volt carbon zinc battery (included)
  • Warranty: 3 years (product life up to 10 years)
  • Optical smoke sensor reduces nuisance alarms
  • Simple test & hush button plus LED status indicator
  • CE marked and certified to EN 14604: 2005

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5 out of 5 stars
1 unit

£8.99 inc VAT

£7.49 ex VAT

50+ units

£7.75 inc VAT

£6.46 ex VAT

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Image of the 10 Year Longlife Battery Optical Smoke Alarm Twin Pack - Kidde 10Y29
Free Delivery

10 Year Longlife Battery Optical Smoke Alarm Twin Pack - Kidde 10Y29

  • FREE delivery
  • Battery: Built-in, lasts the lifetime of your alarm - GUARANTEED
  • Warranty: 10 year warranty
  • Features test and hush buttons
  • Low Volume Test feature
  • 2 x KE10Y29 smoke alarms
  • Suitable for BS 5839-6: 2019 (Grade F1 installations)
  • Kitemarked to BS EN 14604: 2005
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4.6 out of 5 stars

£26.54 inc VAT

£22.12 ex VAT

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Image of the Flat Smoke and CO Alarm Starter Kit - FireAngel FAKIT1

Flat Smoke and CO Alarm Starter Kit - FireAngel FAKIT1

  • Battery: lithium battery (included)
  • Warranty: 5 year warranty
  • 2x smoke alarms, 1x heat alarm, 1x carbon monoxide alarm
  • Certified to BS EN BS 5839-6: 2019 (smoke and heat alarm)
  • Certified to BS EN 50291-2: 2019 (CO alarm for domestic use)
  • UKCA marked
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£94.96 inc VAT

£79.13 ex VAT

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Image of the Home Smoke and CO Alarm Starter Kit - FireAngel FAKIT2

Home Smoke and CO Alarm Starter Kit - FireAngel FAKIT2

  • Battery: Sealed lithium battery
  • Warranty: 5 year warranty
  • 3x smoke alarm, 1x heat alarm, 2x carbon monoxide alarm
  • Certified to BS EN BS 5839-6: 2019 (smoke and heat alarm)
  • Certified to BS EN 50291-2: 2019 (CO alarm for domestic use)
  • CE and UKCA marked
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£142.06 inc VAT

£118.38 ex VAT

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Image of the Smart Home Starter Kit - FireAngel Pro Connected FAKIT3

Smart Home Starter Kit - FireAngel Pro Connected FAKIT3

  • Power: mains powered with sealed back up batteries
  • Wirelessly connects up to 50 FireAngel Pro Connected units
  • Provides instant alerts and alarm testing via the FireAngel mobile app
  • LED indicators to show power, network and error status
  • Connects to your home broadband supply via an ethernet cable
  • Also suitable for the 2022 Scottish legislation
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£312.42 inc VAT

£260.35 ex VAT

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Image of the Mains Powered 2 Smoke Alarms and 1 Heat Alarm Kit with Alkaline Back-up Battery - Aico Ei140e Series

Mains Powered 2 Smoke Alarms and 1 Heat Alarm Kit with Alkaline Back-up Battery - Aico Ei140e Series

  • Power: 230V mains powered with alkaline back-up battery
  • Warranty: 5 year warranty
  • 2 x optical smoke alarms and 1 x heat alarm included
  • Test and hush buttons
  • Hardwire interlink with up to 12 devices
  • Suitable for BS 5839-6: 2019 Grade D2 installations
  • Compliant with Scottish 2022, Welsh Landlord 2022, and Northern Ireland Landlord 2024 legislation
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5 out of 5 stars

£121.16 inc VAT

£100.97 ex VAT

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Image of the Mains Powered 3 Smoke Alarms and 1 Heat Alarm Kit with Alkaline Back-up Battery - Aico Ei140e Series

Mains Powered 3 Smoke Alarms and 1 Heat Alarm Kit with Alkaline Back-up Battery - Aico Ei140e Series

  • Power: 230V mains powered with alkaline back-up battery
  • Warranty: 5 year warranty
  • 3 x optical smoke alarms and 1 x heat alarm included in the kit
  • Central test and hush buttons
  • Hardwire interlink with up to 12 devices
  • Suitable for BS 5839-6: 2019 Grade D2 installations
  • Compliant with Scottish 2022, Welsh Landlord 2022, and Northern Ireland Landlord 2024 legislation
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£159.91 inc VAT

£133.26 ex VAT

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Image of the 10 Year Sealed Lithium Battery RF-LINK Heat Alarm - Firehawk FHH10-RF

10 Year Sealed Lithium Battery RF-LINK Heat Alarm - Firehawk FHH10-RF

  • Detector Battery: 10 year sealed lithium battery
  • Wireless Base Battery: 7 year sealed lithium
  • Warranty: 7 year manufacturer's warranty
  • Radio-interlink up to 20 Firehawk RF-LINK smoke, heat, carbon monoxide, and hard of hearing alarms
  • Also suitable for the 2022 Scottish legislation
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£44.51 inc VAT

£37.09 ex VAT

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Image of the 10 Year Longlife Battery Radio-Interlinked Heat Alarm - Aico Ei630iRF

10 Year Longlife Battery Radio-Interlinked Heat Alarm - Aico Ei630iRF

  • Battery: 10 year sealed lithium
  • Warranty: 5 year warranty
  • Heat alarm with intergrated radio-interlink
  • Built-in RadioLINK+ repeater function
  • Retrieve real-time data with the AudioLINK+ app
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£86.27 inc VAT

£71.89 ex VAT

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Image of the Radio-Interlinked 10 Year Sealed Battery Optical Smoke Alarm - UltraFire ULLS10RF

Radio-Interlinked 10 Year Sealed Battery Optical Smoke Alarm - UltraFire ULLS10RF

Supporting wireless interlink with up to 15 total alarms to cover the whole house, the UltraFire ULLS10RF optical smoke alarm features a sealed 10 year battery and 10 year manufacturer's warranty.

  • Battery: 10 year sealed lithium battery
  • Warranty: 10 year manufacturer's warranty
  • Optical smoke sensor suitable for hallways, landings, living rooms, and bedrooms
  • Wireless interlink up to 15 total alarms

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4.4 out of 5 stars

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Image of the Radio-Interlinked 10 Year Sealed Battery 2 Smoke Alarms & 1 Heat Alarm Kit - UltraFire ULL10RF

Radio-Interlinked 10 Year Sealed Battery 2 Smoke Alarms & 1 Heat Alarm Kit - UltraFire ULL10RF

  • FREE delivery
  • Battery: 10 year sealed lithium battey
  • Warranty: 10 year manufacturer's warranty
  • Wirelessly interlink up to 15 UltraFire ULL10RF devices
  • 2 x optical smoke alarms and 1 x heat alarm included
  • Suitable for BS 5839-6: 2019 Grade F1 installations
  • Compliant with Scottish 2022 and Northern Ireland Landlord 2024 legislation
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4.8 out of 5 stars

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Image of the Radio-Interlinked 10 Year Sealed Battery 3 Smoke Alarms and 1 Heat Alarm Kit - UltraFire ULL10RF Series

Radio-Interlinked 10 Year Sealed Battery 3 Smoke Alarms and 1 Heat Alarm Kit - UltraFire ULL10RF Series

  • FREE delivery
  • Battery: 10 year sealed lithium battey
  • Warranty: 10 year manufacturer's warranty
  • Wirelessly interlink up to 15 Ultrafire ULL10RF devices
  • 3 x optical smoke alarms and 1 x heat alarm included
  • Suitable for BS 5839-6: 2019 Grade F1 installations
  • Compliant with Scottish 2022 and Northern Ireland Landlord 2024 legislation
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4.5 out of 5 stars

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Mains Powered Smoke Alarms

Mains Powered Smoke Alarms

Mains powered smoke alarms are powered by the electrical circuit of a building and are mainly used in residential new builds, rented accommodation and smaller commercial applications. Mains powered smoke alarms offer long-term reliability and are hardwired into your property’s electrical system. These smoke alarms are ideal for permanent installations in homes and in businesses, where specified in a fire risk assessment require a Grade D system and where there is a continuous power supply available. All of our hard-wired alarms also come with backup batteries (alkaline or lithium) to ensure protection during power outages. Browse our range of mains-powered smoke alarms for trusted solutions that meet safety regulations and provide dependable, 24/7 fire detection.

Radio-interlinked Smoke Alarms

Radio-interlinked Smoke Alarms

Radio-interlinked smoke detectors have integrated radio frequency (RF) senders and receivers. If one smoke alarm detects a fire, it passes this information to all other alarms within the same group of alarms to raise the alarm in the entire building. This makes radio-interlinked smoke alarms a top choice for comprehensive fire safety across multiple rooms or levels of a property. Some of the RF smoke alarms have sealed long-life batteries as the only power supply, making them an alternative to mains powered smoke detectors. You can guarantee compatibility between alarms by purchasing a bundle from Safelincs. Some of our bundles include heat alarms to give you comprehensive cover all over your building.

Ionisation Smoke Detectors

Ionisation Smoke Detectors

Ionisation Smoke Alarms detect changes in the electrical charge of particles in the air within their sensor chamber. They were particularly well suited for 'invisible' or fast-flaming fires, such as paper or dry wood fires, which can give off very little smoke despite having an active flame. They were sadly also very sensitive to burnt toast, which is why they should not be installed near kitchens. Historically, ionisation smoke detectors have been recommended for landings and office spaces, but the technology behind optical smoke alarms advanced to the point that they are interchangeable.

Ionisation smoke alarms are being phased out across the entire fire safety industry, from standalone domestic alarms to detectors in the largest commercial panel systems. This is because they use radioactive material in the sensor to detect the presence of smoke particles in the air, making them dangerous to manufacture, awkward and costly to transport, and an environmental hazard if disposed of incorrectly.

Safelincs has stopped selling ionisation smoke alarms, and we would encourage all of our customers to purchase optical smoke alarms instead. Optical smoke alarms are not potentially hazardous like ionisation technology, due to not using radioactive elements.

Heat Alarms

Heat Alarms

Heat alarms, as the name suggests, measure temperature rather than detect smoke. They are designed to detect rapid temperature rises, which make them ideal for kitchens, garages, and areas where smoke alarms might trigger false alarms. It is important to know that heat alarms only cover small areas in a kitchen or garage so might require several heat detectors for full cover.

Optical Smoke Detectors

Optical Smoke Detectors

Optical smoke detectors, also known as photoelectric smoke alarms, are highly effective at detecting slow-burning, smouldering fires. They are especially useful in living rooms, bedrooms, and hallways where fires may start gradually, and create a huge amount of smoke due to soft furnishings such as furniture and curtains. These alarms respond to larger smoke particles and are less prone to false alarms from cooking fumes (not in kitchens, though). Safelincs recommend optical smoke alarms for hallways, dining rooms, living rooms, bedrooms.

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