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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 77)
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
4 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
3 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
84 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
189 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
145 Customer Reviews

1 unit

£18.95 inc VAT

£15.79 ex VAT

2+ units

£18.11 inc VAT

£15.09 ex VAT

5+ units

£17.87 inc VAT

£14.89 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
5 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
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
435 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
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
18 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
2 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
4 Customer Reviews

Save 17%

Now: £29.99 inc VAT

£24.99 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
3 Customer Reviews

Save 17%

Now: £29.99 inc VAT

£24.99 ex VAT

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Image of the Radio-Interlinked Smoke Alarms and Heat Alarm Home Essentials Kit - UltraFire UFUB1RFKIT

Radio-Interlinked Smoke Alarms and Heat Alarm Home Essentials Kit - UltraFire UFUB1RFKIT

  • Battery powered with AA alkaline batteries
  • Warranty: 5 year warranty
  • Large test & hush button
  • Wirelessly interlink up to 50 UltraFire UB1RF series alarms
  • 2 x optical smoke alarms and 1 x heat alarm included
  • Suitable for BS 5839-6: 2019 Grade F2 installations

Save 22%

Now: £83.99 inc VAT

£69.99 ex VAT

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Image of the 10 Year Longlife Battery Radio-Interlinked Smoke Alarm - FireAngel Pro Connected FP2620W2-R

10 Year Longlife Battery Radio-Interlinked Smoke Alarm - FireAngel Pro Connected FP2620W2-R

  • Battery: Built-in, lasts the lifetime of your alarm – GUARANTEED
  • Warranty: 5 year warranty
  • Can interlink with up to 50 Wi-Safe 2 compatible devices
  • Features a central button for test, hush and locate
  • Range of up to 35m in buildings
  • Suitable for BS 5839-6: 2019 Grade F1 installations
  • Kitemarked to EN 14604:2005
  • Also suitable for the 2021 Scottish legislation

£47.99 inc VAT

£39.99 ex VAT

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Image of the 10 Year Longlife Battery Radio-Interlinked Heat Alarm - FireAngel Pro Connected FP1720W2-R

10 Year Longlife Battery Radio-Interlinked Heat Alarm - FireAngel Pro Connected FP1720W2-R

  • Battery: Built-in, lasts the lifetime of your alarm – GUARANTEED
  • Warranty: 5 year warranty
  • Can interlink with up to 50 Wi-Safe 2 compatible devices
  • Large central button for test, hush and locate
  • Range of up to 35m in buildings
  • Suitable for BS 5839-6: 2019 Grade F1 installations
  • Kitemarked to BS 5446-2: 2003
  • Also suitable for the 2021 Scottish legislation

£47.99 inc VAT

£39.99 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 2021 Scottish legislation
2 Customer Reviews

£123.83 inc VAT

£103.19 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 2021 Scottish legislation
2 Customer Reviews

£131.03 inc VAT

£109.19 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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