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Longlife Battery Smoke Alarms

Designed with sealed-in, tamper-proof lithium batteries, these smoke alarms and heat alarms are ideal for a “fit-and-forget” solution for your fire detection requirements in your home. The tamper-proof design ensures that there is no unauthorised removal of the battery and power is always supplied to the alarm for its 10-year lifespan, without the need to change batteries. These smoke and heat detectors are ideal for landlords to put in their rented properties, as they offer peace of mind and assurance that they comply to the latest regulations.

In our range of sealed battery smoke and heat alarms, you have the option to purchase 10-year sealed battery alarms with the capability of interlinking wirelessly via radio-interlink. This offers the earliest warning to a fire, before it has spread from the origin to another room. Providing all those precious seconds to respond and evacuate safely.

Sealed long life smoke and heat alarms ensure that these sensors meet the requirements for Grade F1 installations, in accordance with latest guidance stated in BS 5829-6: 2019. For more information on Grades of alarm systems, please see our guide to BS 5839-6: 2019.

Image of the 10 Year Longlife Battery Optical Smoke Alarm - UltraFire ULLS10
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10 Year Longlife Battery Optical Smoke Alarm - UltraFire ULLS10

Powered by a 10 year sealed lithium battery and featuring an optical smoke sensor specially designed to maximise smoke detection and minimise false alarms, this alarm provides top-class standalone protection.

  • Battery: 10 year sealed lithium battery
  • Warranty: 10 year manufacturer's warranty
  • Optical smoke sensor suitable for hallways, landings, living rooms, and bedrooms

4.8 out of 5 stars

From: £15.59 inc VAT

£12.99 ex VAT

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

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£14.75 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

Save £13.20

From: £29.39 inc VAT

£24.49 ex VAT

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Image of the Radio-Interlinked 10 Year Sealed Battery Heat Alarm - UltraFire ULLH10RF

Radio-Interlinked 10 Year Sealed Battery Heat Alarm - UltraFire ULLH10RF

The UltraFire ULLH10RF features a sealed 10 year battery and wireless interlink with up to 15 total alarms to alert the whole house of a possible fire emergency. Ideal for kitchens, garages, basements, and lofts.

  • Battery: 10 year sealed lithium battery
  • Warranty: 10 year manufacturer's warranty
  • Heat sensor suitable for kitchens and garages
  • Wireless interlink up to 15 total alarms

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4.7 out of 5 stars

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£24.99 ex VAT

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Image of the Radio-Interlinked 10 Year Sealed Battery 2 Smoke Alarms & 1 Heat Alarm Kit - UltraFire ULL10RF
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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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4.9 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
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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

Save £53.96

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£98.99 ex VAT

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Image of the Radio-Interlinked Sealed Battery Powered Smoke & Heat Alarms - Hispec RF10-PRO Range

Radio-Interlinked Sealed Battery Powered Smoke & Heat Alarms - 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 and Carbon Monoxide Alarm
  • Alarms sold separately
  • Compliant with Scottish 2022 and Northern Ireland Landlord 2024 legislation
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4.8 out of 5 stars

From: £31.07 inc VAT

£25.89 ex VAT

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Image of the Radio-Interlinked Sealed Battery 2 Smoke and 1 Heat Alarm Kit - Hispec RF10-PRO Range

Radio-Interlinked Sealed Battery 2 Smoke and 1 Heat 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 and Carbon Monoxide Alarm
  • Also suitable for the 2022 Scottish legislation
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4.6 out of 5 stars

Save £28.68

Now: £66.95 inc VAT

£55.79 ex VAT

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Image of the Radio-Interlinked Sealed Battery 3 Smoke Alarms and 1 Heat Alarm Kit - Hispec RF10-PRO Range

Radio-Interlinked Sealed Battery 3 Smoke Alarms and 1 Heat Alarm Kit - Hispec RF10-PRO Range

  • Battery: 10 year sealed lithium battery
  • Warranty: 5 year warranty
  • Wirelessly interlink up to 20 Hispec RF10-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 £37.93

Now: £88.66 inc VAT

£73.88 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

£44.51 inc VAT

£37.09 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
  • 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
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4.6 out of 5 stars

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From: £37.02 inc VAT

£30.85 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

£63.59 inc VAT

£52.99 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 2022 Scottish legislation
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4.7 out of 5 stars

Save £75.84

Now: £87.23 inc VAT

£72.69 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

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Now: £80.99 inc VAT

£67.49 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

  • Battery: Built-in, lasts the lifetime of your alarm
  • 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
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4.8 out of 5 stars

Save 33%

Now: £14.50 inc VAT

£12.08 ex VAT

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Image of the Replacement for FireAngel ST-620 10 Year Smoke Alarm - UltraFire ULLS10
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Replacement for FireAngel ST-620 10 Year Smoke Alarm - UltraFire ULLS10

  • Easily replace FireAngel ST-620 alarm with UltraFire ULLS10
  • Adaptor plate simply twists onto existing baseplate
  • Battery: 10 year sealed lithium battery
  • Warranty: 10 year manufacturer's warranty
  • Combined test and silence button
  • Suitable for BS 5839-6: 2019 Grade F1 installations
  • CE and Kitemarked 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 Replacement for FireAngel SI-610 10 Year Smoke Alarm - UltraFire ULLS10
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Replacement for FireAngel SI-610 10 Year Smoke Alarm - UltraFire ULLS10

  • Easily replace FireAngel SI-610 alarm with UltraFire ULLS10
  • Adaptor plate simply twists onto existing baseplate
  • Battery: 10 year sealed lithium battery
  • Warranty: 10 year manufacturer's warranty
  • Combined test and silence button
  • Suitable for BS 5839-6: 2019 Grade F1 installations
  • CE and Kitemarked to BS EN 14604: 2005
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4.8 out of 5 stars

£22.43 inc VAT

£18.69 ex VAT

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Image of the Replacement for FireAngel SO-601 9V Optical Smoke Alarm - UltraFire ULLS10
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Replacement for FireAngel SO-601 9V Optical Smoke Alarm - UltraFire ULLS10

  • Easily replace FireAngel SO-601 alarm with UltraFire ULLS10
  • Adaptor plate simply twists onto existing baseplate
  • Battery: 10 year sealed lithium battery
  • Warranty: 10 year manufacturer's warranty
  • Combined test and silence button
  • Suitable for BS 5839-6: 2019 Grade F1 installations
  • CE and Kitemarked to BS EN 14604: 2005
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4.8 out of 5 stars

£22.43 inc VAT

£18.69 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

£36.11 inc VAT

£30.09 ex VAT

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Sealed 10 Year Smoke and Heat Alarms

Sealed 10 Year Smoke and Heat Alarms

Sealed 10-year smoke and heat alarms are designed with a long-life lithium battery which supplies the detector with power for the entire 10-year life span of the alarm. Detectors of this nature, are activated when firmly attached to the base plate upon installation. At the end of the detector’s life, the alarm will chirp intermittently in a pattern. To deactivate the alarm at this point, the alarm just simply twists off the base and the unit can now be disposed of responsibly.

Tamper-proof battery smoke and heat alarms ensure peace of mind, eliminates the possibility of the battery being removed, which happens often with the replaceable battery version. Replaceable battery alarms often have their batteries removed when it has produced a false alarm or chirps to indicate a low battery state, and occupants are ultimately left without any fire detection. This cannot occur with sealed battery alarms, as the battery is contained within the alarm and cannot be removed without damaging the alarm itself.

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