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All Smoke Alarms

Our complete range of smoke detectors and heat alarms offers a solution for every type of application, with options suitable for both Grade F (battery-powered) and Grade D (mains-powered and interlinked) requirements under BS 5839 Part 6. Whether you are looking for a basic battery powered alarm or a radio-interlinked alarm system we have a smoke detector that will meet your needs.

New properties, or those being materially altered such as having an extension, will need to follow the new 2019 Building Regulations which refer to Grades F1 & F2 for battery alarms and Grade D1 & D2 for mains-powered alarms. All of the alarms sold by Safelincs also meet the requirements for these new Grades. Please see our guide to BS 5839-6: 2019 for more information on Grades of alarm.

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Page 1 (Products 1 to 20 of 70)
Image of the Battery Optical Smoke Alarm - UltraFire UBS1

Battery Optical Smoke Alarm - UltraFire UBS1

  • FREE delivery
  • Battery: 9V alkaline battery (included)
  • Warranty: 5 year warranty
  • Large test and hush button
  • High performance optical sensor
  • Suitable for BS 5839-6: 2019 Grade F2 installations
  • Certified to BS EN 14604:2005
FREE Delivery
1 Customer Reviews

1 unit

£7.43 inc VAT

£6.19 ex VAT
2+ units

£6.83 inc VAT

£5.69 ex VAT
5+ units

£6.23 inc VAT

£5.19 ex VAT
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Image of the Battery Heat Alarm - UltraFire UBH1

Battery Heat Alarm - UltraFire UBH1

  • FREE delivery
  • Battery: AA alkaline batteries (included)
  • Warranty: 5 year warranty
  • Large test and hush button
  • Suitable for BS 5839-6: 2019 Grade F2 installations
  • Kitemarked to BS 5446-2: 2003
FREE Delivery
1 Customer Reviews

1 unit

£10.19 inc VAT

£8.49 ex VAT
2+ units

£9.59 inc VAT

£7.99 ex VAT
5+ units

£8.99 inc VAT

£7.49 ex VAT
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Image of the Battery Optical Smoke Alarm - Kidde 29HD

Battery Optical Smoke Alarm - Kidde 29HD

  • FREE delivery
  • Battery: 9V alkaline battery (included)
  • Warranty: 5 year warranty
  • Features test and hush buttons
  • Sleek and compact design
  • Suitable for BS 5839-6: 2019 Grade F2 installations
  • Certified to BS EN 14604:2005
FREE Delivery
82 Customer Reviews

1 unit

£9.48 inc VAT

£7.90 ex VAT
2+ units

£9.24 inc VAT

£7.70 ex VAT
5+ units

£9.12 inc VAT

£7.60 ex VAT
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Image of the 10 Year Longlife Battery Optical Smoke Alarm - Kidde 10Y29

10 Year Longlife Battery Optical Smoke Alarm - 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
  • Suitable for BS 5839-6: 2019 (Grade F1 installations)
  • Kitemarked to BS EN 14604:2005
FREE Delivery
178 Customer Reviews

1 unit

£11.88 inc VAT

£9.90 ex VAT
2+ units

£11.40 inc VAT

£9.50 ex VAT
5+ units

£11.04 inc VAT

£9.20 ex VAT
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Image of the Combination Carbon Monoxide and Smoke Alarm 10 Yr Warranty - Kidde 10SCO

Combination Carbon Monoxide and Smoke Alarm 10 Yr Warranty - Kidde 10SCO

  • FREE delivery
  • Product Lifespan: 10 years
  • Battery: 9V alkaline battery (included)
  • Warranty: 10 year warranty
  • Voice Alarm and Sounder: Different Warning Messages for Smoke and CO
  • Kitemarked to BS EN 50291-1:2010 (CO alarm for domestic use)
  • Kitemarked to BS EN 14604:2005 (smoke alarm)
  • Suitable for ceiling installation
FREE Delivery
132 Customer Reviews

1 unit

£18.84 inc VAT

£15.70 ex VAT
2+ units

£18.00 inc VAT

£15.00 ex VAT
5+ units

£17.76 inc VAT

£14.80 ex VAT
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Image of the 10 Year Longlife Battery Combination Carbon Monoxide and Smoke Alarm - Kidde WFPCO

10 Year Longlife Battery Combination Carbon Monoxide and Smoke Alarm - Kidde WFPCO

  • FREE delivery
  • Product Lifespan: 10 years
  • Battery: Built-in, lasts the lifetime of your alarm - GUARANTEED
  • Warranty: 10 year warranty
  • Detects both carbon monoxide and smoke hazards
  • Certified to EN 14604: 2005
  • Certified to EN 50291-1: 2010 (domestic use)
  • Suitable for ceiling installation
FREE Delivery
3 Customer Reviews

1 unit

£23.70 inc VAT

£19.75 ex VAT
2+ units

£23.46 inc VAT

£19.55 ex VAT
5+ units

£23.10 inc VAT

£19.25 ex VAT
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Image of the Kidde 29HD Optical Smoke Alarm & 5CO Carbon Monoxide Detector Special Offer

Kidde 29HD Optical Smoke Alarm & 5CO Carbon Monoxide Detector Special Offer

  • FREE delivery
  • Battery powered optical smoke alarm
  • Certified to BS EN 14604:2005
  • Battery powered carbon monoxide detector
  • Kitemarked and CE marked
FREE Delivery
11 Customer Reviews

Save 6%

Now: £18.59 inc VAT

£15.49 ex VAT

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Image of the Battery Heat Alarm - First Alert HA300

Battery Heat Alarm - First Alert HA300

  • Battery: 9V alkaline battery (included)
  • Warranty: 5 year warranty
  • Test and hush button feature
  • 85dB audible alarm upon activation
  • Suitable for BS 5839-6: 2019 Grade F2 installations
  • Certified to BS 5446-2:2003
29 Customer Reviews

1 unit

£10.79 inc VAT

£8.99 ex VAT
2+ units

£10.55 inc VAT

£8.79 ex VAT
5+ units

£10.43 inc VAT

£8.69 ex VAT
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Image of the 10 Year Thermally Enhanced Optical Smoke Alarm (Thermoptek) - FireAngel ST-622

10 Year Thermally Enhanced Optical Smoke Alarm (Thermoptek) - FireAngel ST-622

  • FREE delivery
  • Battery: Built-in, lasts the lifetime of your alarm - GUARANTEED
  • Warranty: 5 year warranty
  • Combined smoke and heat alarm (Thermoptek)
  • Test, hush and Sleep Easy™ feature
  • Optical sensor less prone to false alarms
  • Suitable for BS 5839-6: 2019 (Grade F1 installations)
  • Kitemarked to BS EN 14604:2005
FREE Delivery
422 Customer Reviews

1 unit

£12.90 inc VAT

£10.75 ex VAT
2+ units

£12.42 inc VAT

£10.35 ex VAT
5+ units

£12.18 inc VAT

£10.15 ex VAT
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Image of the 10 Year Longlife Battery Heat Alarm - FireAngel HT-630

10 Year Longlife Battery Heat Alarm - FireAngel HT-630

  • Battery: Built-in, lasts the lifetime of your alarm - GUARANTEED
  • Warranty: 10 year warranty
  • Test and hush button feature
  • Quick reaction to rapid rise in temperature
  • Suitable for BS 5839-6: 2019 Grade F1 installations
  • Kitemarked to BS EN 14604:2005
53 Customer Reviews

1 unit

£13.44 inc VAT

£11.20 ex VAT
2+ units

£13.20 inc VAT

£11.00 ex VAT
5+ units

£13.08 inc VAT

£10.90 ex VAT
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Image of the Kidde 10Y29 Optical Smoke Alarm & 10LLCO Carbon Monoxide Detector Special Offer

Kidde 10Y29 Optical Smoke Alarm & 10LLCO 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
FREE Delivery
11 Customer Reviews

Save 5%

Now: £26.99 inc VAT

£22.49 ex VAT

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Image of the Carbon Monoxide and Smoke Combination Alarm - First Alert SCO5UK

Carbon Monoxide and Smoke Combination Alarm - First Alert SCO5UK

  • Product Lifespan: 7 years
  • Battery: 2 x AA alkaline battery (included)
  • Warranty: 7 year warranty
  • Test and hush button feature
  • Combined optical smoke and CO alarm
  • Certified to BS EN 14604:2005 (smoke)
  • Certified to BS EN 50291-1:2010 (carbon monoxide)
  • Suitable for ceiling installation
16 Customer Reviews

1 unit

£20.39 inc VAT

£16.99 ex VAT
2+ units

£20.03 inc VAT

£16.69 ex VAT
5+ units

£19.55 inc VAT

£16.29 ex VAT
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Image of the 10 Year Longlife Battery Combination Optical Smoke and CO Alarm - FireAngel SCB10-R

10 Year Longlife Battery Combination Optical Smoke and CO Alarm - FireAngel SCB10-R

  • Product Lifespan: 10 years
  • Battery: Built-in, lasts the life time of your product - GUARANTEED
  • Warranty: 5 Year Warranty
  • Combined optical smoke and carbon monoxide detector
  • Ideal for hallways, bedrooms and living areas
  • Sleep Easy™ function
  • Kitemarked to EN 14604:2005 (smoke detection)
  • Kitemarked to EN 50291-1 (carbon monoxide detection)
  • Suitable for ceiling installation
1 Customer Reviews

1 unit

£32.22 inc VAT

£26.85 ex VAT
2+ units

£31.98 inc VAT

£26.65 ex VAT
5+ units

£31.86 inc VAT

£26.55 ex VAT
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Image of the Radio-Interlinked Battery Powered Optical Smoke Alarm - UltraFire UBS1RF

Radio-Interlinked Battery Powered Optical Smoke Alarm - UltraFire UBS1RF

  • Battery: AA alkaline batteries (included)
  • Warranty: 5 year warranty
  • Large test and hush button
  • Toast-proof sensor
  • Wireless interlink up to 50 compatible alarms
  • No central control panel needed
  • Suitable for BS 5839-6: 2019 Grade F2 installations
  • Certified to BS EN 14604:2005
2 Customer Reviews

£35.99 inc VAT

£29.99 ex VAT

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Image of the Radio-Interlinked Battery Powered Heat Alarm - UltraFire UBH1RF

Radio-Interlinked Battery Powered Heat Alarm - UltraFire UBH1RF

  • Battery: AA alkaline batteries (included)
  • Warranty: 5 year warranty
  • Large test and hush button
  • Wireless interlink up to 50 compatible alarms
  • Range of up to 35m in buildings
  • Suitable for BS 5839-6: 2019 Grade F2 installations
  • Certified to BS 5446-2:2003
1 Customer Reviews

£35.99 inc VAT

£29.99 ex VAT

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Image of the Radio-Interlinked Battery Powered Ionisation Smoke Alarm - Ei3100RF

Radio-Interlinked Battery Powered Ionisation Smoke Alarm - Ei3100RF

  • Battery: 9V battery (included)
  • Warranty: 5 year warranty
  • Can wirelessly interlink with both mains and battery operated alarms
  • Interlink up to 12 alarm units
  • Suitable for BS 5839-6: 2019 Grade F2 installations
  • Supplied with fixings for ceiling mounting
  • Kitemarked to BS EN 14604:2005
      18 Customer Reviews

      £35.99 inc VAT

      £29.99 ex VAT

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      Image of the Radio-Interlinked Smoke Alarm with Sealed Ten Year Lithium Battery - Ei650RF

      Radio-Interlinked Smoke Alarm with Sealed Ten Year Lithium Battery - 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
      2 Customer Reviews

      £123.83 inc VAT

      £103.19 ex VAT

      View Product
      Image of the Radio-Interlinked Heat Alarm with Sealed Ten Year Lithium Battery - Ei603RF

      Radio-Interlinked Heat Alarm with Sealed Ten Year Lithium Battery - 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
      2 Customer Reviews

      £131.03 inc VAT

      £109.19 ex VAT

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      Image of the Mains Powered Optical Smoke Alarm with Alkaline Back-up Battery - FireAngel SW1-R

      Mains Powered Optical Smoke Alarm with Alkaline Back-up Battery - FireAngel SW1-R

      • Power: 230V mains powered with backup battery
      • Backup Battery: 9V alkaline battery (included)
      • Warranty: 5 year manufacturer's warranty
      • Interlinks with up to 12 FireAngel W1 mains powered alarms
      • Optical sensor detects the presence of smoke in the air
      • Large, central test and silence button
      • Suitable for BS 5839-6: 2019 Grade D2
      • Kitemarked to BS EN 14604:2005

      Save 23%

      Now: £12.07 inc VAT

      £10.06 ex VAT

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      Image of the Mains Powered Heat Alarm with Alkaline Back-up Battery - FireAngel HW1-R

      Mains Powered Heat Alarm with Alkaline Back-up Battery - FireAngel HW1-R

      • Power: 230V mains powered with back-up battery
      • Backup Battery: 9V alkaline battery
      • Warranty: 5 year manufacturer's warranty
      • Thermistor heat sensor measures the ambient temperature of the air
      • Interlinks with up to 12 FireAngel W1 mains powered alarms
      • Dedicated Test and Silence buttons
      • Suitable for BS 5839-6: 2019 Grade D2
      • Kitemarked to BS 5446-2:2003

      Save 17%

      Now: £14.89 inc VAT

      £12.41 ex VAT

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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, are interconnected and are mainly used in residential new builds, rented accommodation and smaller commercial applications. They should always contain a backup battery to ensure that if a fire is started by an electrical fault which cuts the power supply, the alarm will still detect the fire. These backup batteries can be of a replaceable type (eg alkaline) or of a sealed-in, re-chargeable type (trickle charging). The power supply, if retro-fitted, is usually taken from the nearest light fitting.
      Radio-interlinked Smoke Alarms

      Radio-interlinked Smoke Alarms

      These smoke detectors have integrated 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. Perfect for larger houses and smaller commercial applications. Some of the RF smoke alarms have sealed longlife batteries as the only power supply, making them an alternative to mains powered smoke detectors (Building Control might have to be asked for a clarification first)
      Ionisation Smoke Detectors

      Ionisation Smoke Detectors

      Ionisation Smoke Alarms detect electrical property changes in the air. They are particularly well suited for 'invisible' or fast flaming fires such as paper or wood fires. They are sadly also very sensitive to burnt toast, which is why they should not be installed near kitchens. As they contain a weak radioactive source, we do not recommend them for bedrooms or living rooms. They are, however, suitable for landings, as they will quickly detect any larger fire events downstairs or at the level of the landing.
      Heat Alarms

      Heat Alarms

      Heat alarms, as the name suggests, measure temperature rather than detect smoke. They raise an alarm if the temperature rises above a certain point or if the temperature rises rapidly. They are suitable for kitchens and garages as they will not cause false alarms. It is important to know that they only cover small areas and a kitchen or garage might require several heat detectors for full cover.
      Optical Smoke Detectors

      Optical Smoke Detectors

      Optical or photoelectric smoke detectors 'see' smoke when a very small permanent light beam within the alarm is affected by smoke. They are ideal for smouldering fires producing smoke rather than heat, such as burning soft furnishings and electrical equipment. They are less prone to false alarms from burnt toast, so can be used near kitchens (not in kitchens, though). We recommend optical smoke alarms for hallways, dining rooms, living rooms, bedrooms.
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