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All Smoke Alarms

Whether you are looking for a battery powered smoke alarm, a radio-interlinked smoke alarm system or mains-powered smoke and heat alarms we have smoke detectors that will meet your needs. We offer Grade F and D smoke and heat alarms.

Page 1 (20 of 37 Products)
Image of the Battery Heat Alarm - UltraFire UBH1

Battery Heat Alarm - UltraFire UBH1

  • FREE delivery
  • Battery: AA alkaline batteries (included)
  • Warranty: 10 year warranty
  • Large test and hush button
  • Suitable for BS 5839-6: 2019 Grade F2 installations
  • Kitemarked to BS 5446-2: 2003
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4.6 out of 5 stars
1 unit

£12.59 inc VAT

£10.49 ex VAT

2+ units

£11.99 inc VAT

£9.99 ex VAT

5+ units

£11.39 inc VAT

£9.49 ex VAT

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Image of the Battery Smoke Alarms and Heat Alarm Home Essentials Kit - UltraFire UFUB1KIT

Battery Smoke Alarms and Heat Alarm Home Essentials Kit - UltraFire UFUB1KIT

  • FREE delivery
  • Battery: Alkaline batteries (included)
  • Warranty: 10 year warranty
  • Large test and hush button
  • 2 x optical smoke alarms and 1 x heat alarm included
  • Suitable for BS 5839-6: 2019 Grade F2 installations
  • CE marked
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4.8 out of 5 stars

Save 5%

Now: £23.99 inc VAT

£19.99 ex VAT

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Image of the 10 Year Longlife Battery Heat Alarm - UltraFire ULLH10

10 Year Longlife Battery Heat Alarm - UltraFire ULLH10

Ideal for rooms like garages, kitchens, and lofts where dust or fumes would cause false activations of smoke alarms, the UltraFire ULLH10 features a sealed 10 year battery and 10 year manufacturer's warranty.

  • Battery: 10 year sealed lithium battery
  • Warranty: 10 year manufacturer's warranty
  • Heat sensor suitable for kitchens and garages

4.7 out of 5 stars
1 unit

£18.90 inc VAT

£15.75 ex VAT

2+ units

£18.30 inc VAT

£15.25 ex VAT

5+ units

£17.70 inc VAT

£14.75 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: 10 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
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5 out of 5 stars

£22.79 inc VAT

£18.99 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: 10 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
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4.6 out of 5 stars

Save 12%

Now: £58.68 inc VAT

£48.90 ex VAT

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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
  • Also suitable for the updated Scottish 2022 legislation
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4.8 out of 5 stars

Save £41.98

Now: £87.59 inc VAT

£72.99 ex VAT

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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
  • Also suitable for the updated Scottish 2022 legislation
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4.5 out of 5 stars

Save £53.96

Now: £118.79 inc VAT

£98.99 ex VAT

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Image of the Radio-Interlinked Sealed Battery Powered Smoke & Heat Alarms - Hispec RF Pro Range

Radio-Interlinked Sealed Battery Powered Smoke & Heat Alarms - Hispec RF Pro Range

  • Battery: 10 year sealed lithium battery
  • Warranty: 5 year warranty
  • Radio-interlink up to 20 Hispec RF Pro Alarms
  • Suitable for BS 5839-6: 2019 Grade F1 installations
  • Compatible with the Hispec Control Unit and Carbon Monoxide Alarm
  • Alarms sold separately
  • Also suitable for the 2022 Scottish legislation
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4.8 out of 5 stars

From: £29.27 inc VAT

£24.39 ex VAT

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Image of the Radio-Interlinked Sealed Battery 2 Smoke and 1 Heat Alarm Kit - Hispec RF Pro Range

Radio-Interlinked Sealed Battery 2 Smoke and 1 Heat Alarm Kit - Hispec RF Pro Range

  • Battery: 10 year sealed lithium battery
  • Warranty: 5 year warranty
  • Radio-interlink up to 20 Hispec RF Pro Alarms
  • Suitable for BS 5839-6: 2019 Grade F1 installations
  • Compatible with the Hispec Control Unit and Carbon Monoxide Alarm
  • Also suitable for the 2022 Scottish legislation
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4.6 out of 5 stars

Save 8%

Now: £80.99 inc VAT

£67.49 ex VAT

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Image of the Radio-Interlinked Sealed Battery 3 Smoke Alarms and 1 Heat Alarm Kit - Hispec RF Pro Range

Radio-Interlinked Sealed Battery 3 Smoke Alarms and 1 Heat Alarm Kit - Hispec RF Pro Range

  • Battery: 10 year sealed lithium battery
  • Warranty: 5 year warranty
  • Wirelessly interlink up to 20 Hispec RF Pro devices
  • Suitable for BS 5839-6: 2019 Grade F1 installations
  • Compatible with the Hispec Control Unit and Carbon Monoxide Alarm
  • Also suitable for the 2022 Scottish legislation
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4.7 out of 5 stars

Save 8%

Now: £107.39 inc VAT

£89.49 ex VAT

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Image of the Radio-Interlinked Sealed Battery 3 Smoke, 1 Heat, and 1 CO Alarm Kit - Hispec RF10-Pro Range

Radio-Interlinked Sealed Battery 3 Smoke, 1 Heat, and 1 CO Alarm Kit - Hispec RF10-Pro Range

  • Battery: 10 year sealed lithium battery
  • Warranty: 5 year warranty
  • Radio-interlink up to 20 Hispec RF10-Pro Alarms
  • Suitable for BS 5839-6: 2019 Grade F1 installations
  • Compatible with the Hispec Control Unit
  • Also suitable for the 2022 Scottish legislation
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5 out of 5 stars

Save 10%

Now: £146.61 inc VAT

£122.18 ex VAT

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Image of the Sealed Battery Wireless Heat Alarm - Firehawk FHH10W

Sealed Battery Wireless Heat Alarm - Firehawk FHH10W

  • Detector Battery: 10 year sealed lithium battery
  • Wireless Base Battery: 7 Year Sealed Lithium
  • Warranty: 7 year manufacturer's warranty
  • Radio interlink up to 15 Firehawk W alarms
  • Also suitable for the 2022 Scottish legislation
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4.8 out of 5 stars

£41.99 inc VAT

£34.99 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 2022 Scottish legislation
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4.6 out of 5 stars

£59.99 inc VAT

£49.99 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 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
  • Also suitable for both the Welsh and Scottish 2022 legislation
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5 out of 5 stars

Save 12%

Now: £21.91 inc VAT

£18.26 ex VAT

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Image of the Mains Powered Heat Alarm with Back-Up Battery - Kidde Firex KF30

Mains Powered Heat Alarm with Back-Up Battery - Kidde Firex KF30

  • Power: 230V mains powered with battery backup
  • Backup: Optional alkaline or self-charging lithium backup battery versions
  • Warranty: 6 year warranty
  • Test and hush buttons
  • Neat slimline design
  • Interlinks with up to 24 units
  • Suitable for BS 5839-6: 2019 Grade D1 or D2
  • Kitemarked to BS 5446-2: 2003
  • Also suitable for both the Welsh and Scottish 2022 legislation
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4.8 out of 5 stars

From: £30.60 inc VAT

£25.50 ex VAT

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

Mains Powered 2 Smoke Alarms and 1 Heat Alarm Kit with Alkaline Back-up Battery - Kidde Firex KF Series

  • Power: 230V mains powered with alkaline back-up battery
  • Back-up Battery: 9V alkaline battery (included)
  • Warranty: 6 year warranty
  • Hardwire interlink with up to 24 devices
  • Suitable for BS 5839-6: 2019 Grade D2 installations
  • Also suitable for both the Welsh and Scottish 2022 legislation
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4.7 out of 5 stars

Save 5%

Now: £68.39 inc VAT

£56.99 ex VAT

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

Mains Powered 3 Smoke Alarms and 1 Heat Alarm Kit with Alkaline Back-up Battery - Kidde Firex KF Series

  • Power: 230V mains powered with alkaline back-up battery
  • Back-up Battery: 9V alkaline battery (included)
  • Warranty: 6 year warranty
  • Hardwire interlink with up to 24 devices
  • Suitable for BS 5839-6: 2019 Grade D2 installations
  • Also suitable for both the Welsh and Scottish 2022 legislation
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4.7 out of 5 stars

Save 5%

Now: £87.59 inc VAT

£72.99 ex VAT

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Image of the Mains Powered 2 Smoke Alarms and 1 Heat Alarm Kit with Self-Charging 10 Year Back-up Battery - Kidde Firex KF-R Series

Mains Powered 2 Smoke Alarms and 1 Heat Alarm Kit with Self-Charging 10 Year Back-up Battery - Kidde Firex KF-R Series

  • Power: 230V mains powered with self-charging lithium back-up battery
  • Back-up Battery: Self-charging 10 year back-up battery
  • Warranty: 6 year warranty
  • Hardwire interlink up to 24 compatible devices
  • Suitable for BS 5839-6: 2019 Grade D1 installations
  • Also suitable for both the Welsh and Scottish 2022 legislation
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4.3 out of 5 stars

Save £14.14

Now: £127.43 inc VAT

£106.19 ex VAT

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Image of the Mains Powered 3 Smoke Alarms and 1 Heat Alarm Kit with Self-Charging 10 Year Back-up Battery - Kidde Firex KF-R Series

Mains Powered 3 Smoke Alarms and 1 Heat Alarm Kit with Self-Charging 10 Year Back-up Battery - Kidde Firex KF-R Series

  • Power: 230V mains powered with self-charging lithium back-up battery
  • Back-up Battery: Self-charging 10 year back-up battery
  • Warranty: 6 year warranty
  • Hardwire interlink up to 24 compatible devices
  • Suitable for BS 5839-6: 2019 Grade D1 installations
  • Also suitable for both the Welsh and Scottish 2022 legislation
Show More
5 out of 5 stars

Save £17.72

Now: £170.63 inc VAT

£142.19 ex VAT

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Image of the Mains Powered Heat Alarm with Alkaline Back-up Battery - Firehawk FHN450BB

Mains Powered Heat Alarm with Alkaline Back-up Battery - Firehawk FHN450BB

This Firehawk FHN450BB mains powered heat alarm features replaceable alkaline battery backup, and interlinks with other 250BB/RB smoke and 450BB/RB heat alarms in the FHN range.

  • 230V mains with AAA alkaline battery backup
  • 6 years manufacturer's warranty
  • Hardwire interlink up to 12 Firehawk FHN smoke and heat alarms
  • UKCA marked, CE marked, and Kitemarked
  • Also suitable for both the Welsh and Scottish 2022 legislation

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£18.23 inc VAT

£15.19 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 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 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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