Mains Smoke Alarms
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Mains Smoke Alarms

New residential buildings, conversions, HMOs and some small businesses require mains powered interlinked smoke alarms. Our 230V smoke detectors and heat alarms (with wire interlink or radio interlink between units) from Kidde and EI Electronics (AICO) fulfill BS5839 part 6 Grade D.

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FireAngel Mains Powered Alarms with 9V Alkaline Back-up Battery W1-R Series

  • Power: 230V mains powered with battery back-up
  • Backup Battery: 9V alkaline battery (included)
  • Warranty: 5 year warranty
  • Available in Optical and Heat versions
  • Interlinks with up to 12 units
  • Kitemarked, CE marked and suitable for BS 5839-6: 2013 Grade D, E and F
  • Please note: alarms are sold individually
4 Customer Reviews

Save 24%

From: £11.80 inc VAT

£9.83 ex VAT

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BRK Mains Powered Smoke Alarms with Alkaline Back-up Battery 600 Series

  • 230V mains powered with alkaline back-up battery
  • Available in Ionisation, Optical and Heat versions (670MBX, 660MBX, 690MBX)
  • Interlinks with up to 12 units
  • Kitemarked, CE marked and suitable for BS 5839-6: 2013 Grade D, E and F
  • Please note: alarms are sold individually
28 Customer Reviews

Save 19%

From: £15.59 inc VAT

£12.99 ex VAT

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Kidde Firex Mains Powered Smoke Alarms with Alkaline Back-up Battery KF Series

  • 230V mains powered with alkaline back-up battery
  • Available in Ionisation, Optical and Heat versions
  • Interlink with up to 24 units
  • Suitable for BS 5839-6: 2013 Grade D, E and F installations
  • Kitemarked and CE marked
25 Customer Reviews

From: £17.75 inc VAT

£14.79 ex VAT

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Kidde Slick Mains Powered Smoke Alarms with Alkaline Back-up Battery SFW Series

  • 230V mains powered with alkaline back-up battery
  • Available in Ionisation, Optical and Heat versions (KF1SFW, KF2SFW, KF3SFW)
  • Interlinks with up to 24 units
  • Kitemarked, CE marked and suitable for BS 5839-6: 2013 Grade D, E and F installations
28 Customer Reviews

From: £20.39 inc VAT

£16.99 ex VAT

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Aico Mains Powered Smoke Alarms with Alkaline Back-up Battery Ei140 Series

  • 230V mains powered with alkaline back-up battery
  • Available in Ionisation, Optical and Heat versions (Ei141, Ei146, Ei144)
  • Made in Ireland by Ei Electronics
  • Interlinks with up to 12 units
  • Kitemarked, CE marked and suitable for BS 5839-6: 2013 Grade D, E and F installations
  • Please note: alarms are sold individually
42 Customer Reviews

From: £22.79 inc VAT

£18.99 ex VAT

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BRK Mains Powered Smoke Alarms with Lithium Back-up Battery 700 Series

  • 230V mains powered with lithium back-up battery
  • Available in Ionisation, Optical and Heat versions (770MRL, 760MRL, 790MRL)
  • Interlinks with up to 12 units
  • Kitemarked, CE marked and suitable for BS 5839-6: 2013 Grade D, E and F
  • Please note: alarms are sold individually
4 Customer Reviews

From: £31.19 inc VAT

£25.99 ex VAT

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Aico Mains Powered Smoke Alarms with Lithium Back-up Battery Ei160e Series

  • 230V mains powered with re-chargeable lithium back-up battery
  • Available in ionisation, optical and heat versions
  • Made in Ireland by Ei Electronics
  • Interlinks with up to 12 units
  • Kitemarked, CE marked and suitable for BS 5839-6: 2013 Grade D, E and F installations
  • Please note: alarms are sold individually
26 Customer Reviews

From: £33.47 inc VAT

£27.89 ex VAT

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FireAngel Pro Mains Powered Alarms with Lithium Back-up Battery 230 Series

  • 230V mains powered with long life lithium back-up battery
  • Available in Optical and Heat versions (ST-230, HT-230)
  • Interlinks with up to 30 units
  • Kitemarked, CE marked and suitable for BS 5839-6: 2013 Grade D, E and F installations
  • Please note: alarms are sold individually
11 Customer Reviews

From: £41.39 inc VAT

£34.49 ex VAT

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Mains Radio-Interlink Smoke Alarms with Alkaline Backup - Kidde Slick SFWRF

  • 230V mains powered with alkaline back-up battery
  • Available in Ionisation, Optical and Heat versions (1SFWRF, 2SFWRF, 3SFWRF)
  • Interlinks via radio frequency with up to 15 units, no cables required between units
  • Kitemarked, CE marked and suitable for BS 5839-6: 2013 Grade D, E and F installations
  • All alarms also act as repeaters
  • Please note: alarms are sold individually
28 Customer Reviews

From: £63.83 inc VAT

£53.19 ex VAT

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Mains Radio-Interlinked Smoke Alarms with Alkaline Back-up - Ei140RF Series

  • 230V mains powered with alkaline back-up battery
  • Available in Ionisation, Optical and Heat versions (Ei141RF, Ei146RF, Ei144RF)
  • Interlinks via radio frequency with up to 12 units
  • Kitemarked, CE marked and suitable for BS 5839-6: 2013 Grade D, E and F
  • All alarms also act as repeaters
  • Please note: alarms are sold individually
28 Customer Reviews

From: £71.75 inc VAT

£59.79 ex VAT

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Mains Radio-Interlink Smoke Alarms with Lithium Battery - FireAngel Pro WST230

  • 230V mains powered with 10 year lithium back-up battery
  • Wireless radio-interlinked - can interlink up to 50 alarms
  • Safelincs EXCLUSIVE 5 year warranty
  • Suitable for BS 5839-6: 2013 Grade D, E and F installations
  • Please note: alarms are sold individually

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4 Customer Reviews

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Mains Radio-Interlink Smoke & Heat Alarms with Lithium Back-up Ei160eRF Series

  • 230V mains powered with re-chargeable lithium back-up battery
  • Available in ionisation, optical and heat versions
  • Made in Ireland by Ei Electronics
  • Wirelessly interlinks with up to 12 units
  • Kitemarked, CE marked and suitable for BS 5839-6: 2013 Grade D, E and F installations
  • Please note: alarms are sold individually
11 Customer Reviews

From: £86.27 inc VAT

£71.89 ex VAT

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Mains Radio-Interlink Smoke Alarms with Lithium Backup - Kidde Slick SFLLWRF

  • 230V mains powered with re-chargeable lithium back-up battery
  • Available in Ionisation, Optical and Heat versions (1SFLLWRF, 2SFLLWRF, 3SFLLWRF)
  • Interlinks via radio frequency with up to 15 units, no cables required between units
  • Kitemarked, CE marked and suitable for BS 5839-6: 2013 Grade D, E and F installations
  • All alarms also act as repeaters
  • Please note: alarms are sold individually
4 Customer Reviews

From: £87.59 inc VAT

£72.99 ex VAT

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Nest Protect Mains Powered Smoke and Carbon Monoxide Alarm

  • Product Life: 10 years
  • Power: 230V mains powered with battery backup
  • Backup: 3 x 1.5V lithium batteries (included)
  • Warranty: Safelincs EXCLUSIVE 5 year warranty
  • Smart Wi-Fi alarm with combined smoke and CO detector
  • Sends alerts/alarms to smartphone and all other Nest alarms
  • Works with Nest Thermostat and Nest Cam
  • Kitemarked to BS EN 50291-1 (domestic use)
2 Customer Reviews

£109.00 inc VAT

£90.83 ex VAT

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Mains Smoke Alarms

Mains Smoke Alarms

Mains smoke alarms or mains powered smoke alarms are supplied with 230V from the mains wiring of a building. They can be wired into a special alarm wiring loop coming directly from the fusebox or they can be fed from the nearest light fitting. Supply from the light fitting is recommended and cheaper. However, care must be taken that the supply is not wired incorrectly and the smoke alarm is by mistake supplied by a 'switched' electric cable, otherwise low battery warnings might ensue. Mains smoke alarms with a form of interlink (wire interlink between units or radio-interlink) fulfil BS5839 part 6 grade D required for extensions, new domestic buildings, let homes, HMOs and many more applications.
Back-Up Batteries

Back-Up Batteries

All our mains powered smoke detectors and heat alarms have back-up batteries. This ensures that the smoke alarms are still working even if the mains power fails. These back-up batteries are either non-rechargeable (eg alkaline batteries), in which case they need replacing every year or two, or they contain sealed-in re-chargeable lithium back-up batteries which are re-charged with a trickle charge. Sealed-in batteries cannot be replaced at the end of their lifespan which is usually ten years.

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