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Alarms Suitable for Scottish Regulations

From February 2022 all homes in Scotland must be fitted with interlinking smoke and heat alarms. In addition carbon monoxide alarms are required if there is a carbon-fuelled appliance or flue. Every alarm in this section has been selected to comply with the new legislation.

Power supply: All alarms must be powered either from the mains electricity circuit or by a sealed battery lasting the full lifespan of the alarm. 

Interlink: Smoke and heat alarms must either be interlinked by cable or by wireless radio-frequency interlink. Carbon monoxide alarms do not have to interlink with the smoke and heat alarms.

For more information, please read our guide to the new Scottish regulations for smoke and CO alarms.

Page 2 (40 of 40 Products)

Mains Powered 3 Smoke Alarms and 1 Heat Alarm Kit with Alkaline Back-up Batteries - Firehawk

  • Power: 230V mains powered with alkaline back-up battery
  • Back-up Battery: 3 x AAA alkaline batteries (included)
  • Warranty: 6 year manufacturer's warranty
  • Hardwire interlink with up to 15 Firehawk devices in total
  • Suitable for BS 5839-6: 2019 Grade D2 installations
  • Also suitable for both the Welsh and Scottish 2022 legislation
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4.5 out of 5 stars

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Mains Powered Smoke Alarms & Heat Alarms with Self-Charging 10 Year Back-up Battery - Kidde Firex KF-R Series

  • 230V mains powered with self-charging lithium back-up battery
  • Available in Optical and Heat versions
  • Interlinks with up to 24 units
  • Suitable for BS 5839-6: 2013 Grade D, E and F installations
  • Kitemarked and CE marked
  • Also suitable for both the Welsh and Scottish 2022 legislation
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4.7 out of 5 stars

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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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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
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Mains Powered Smoke Alarms & Heat Alarms with Self-Charging 10 Year Back-up Battery - Firehawk RB Series

With self-charging back-up batteries, these mains-powered smoke and heat alarms from Firehawk won't need new batteries for their full 10 year lifespan. Ideal for Grade D1 and Scottish installations.

  • 230V mains power with self-charging lithium battery backup
  • 10 years manufacturer's warranty
  • Hardwire interlink up to 15 Firehawk smoke and heat alarms.
  • Also suitable for the 2022 Scottish legislation

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£23.32 ex VAT

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10 Year Longlife Battery Wireless Carbon Monoxide Alarm – Hispec RF Pro Range

  • Battery: 10 year sealed lithium battery
  • Warranty: 5 year warranty
  • Radio-interlink up to 20 Hispec RF Pro Alarms
  • CE marked and Kitemarked, suitable for Grade F1 installations
  • Compatible with the Hispec Control Unit and Hispec Smoke and Heat Alarms
  • Also suitable for both the Welsh and Scottish 2022 legislation
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4.8 out of 5 stars

£41.75 inc VAT

£34.79 ex VAT

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10 Year Longlife Sealed Battery Wireless Carbon Monoxide Alarm - Firehawk CO7B-10YW

  • Detector Battery: 10 year sealed lithium battery
  • Wireless Base Battery: 7 year sealed lithium battery
  • Warranty: 7 year manufacturer's warranty
  • Wirelessly interlink up to 15 Firehawk W alarms
  • Also suitable for both the Welsh and Scottish 2022 legislation
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4.6 out of 5 stars

£46.79 inc VAT

£38.99 ex VAT

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10 Year Longlife Battery Radio-Interlinked Carbon Monoxide Alarm - FireAngel Pro Connected FP1820W2-R

  • Product Lifespan: 10 years
  • Battery: Built-in, lasts the lifetime of your alarm
  • Warranty: 1 year warranty
  • Can interlink with any Wi-Safe 2 compatible device
  • Suitable for free standing or wall mounting
  • Kitemarked to BS EN 50291-1 (domestic use)
  • Kitemarked to BS EN 50291-2 (camping / caravans / boats)
  • Also suitable for both the Welsh and Scottish 2022 legislation
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4.7 out of 5 stars

£49.19 inc VAT

£40.99 ex VAT

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10 Year Longlife Battery Carbon Monoxide Detector - Kidde 10LLCO

  • FREE delivery
  • Product Lifespan: 10 years
  • Battery: Built-in, lasts the life time of your product – GUARANTEED
  • Warranty: 10 year warranty
  • Suitable for wall mounting and free-standing
  • Kitemarked to BS EN 50291-1: 2018 (domestic use)
  • Also suitable for both the Welsh and Scottish 2022 legislation
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4.7 out of 5 stars
1 unit

£20.63 inc VAT

£17.19 ex VAT

2+ units

£20.03 inc VAT

£16.69 ex VAT

5+ units

£19.67 inc VAT

£16.39 ex VAT

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Mains Radio-Interlinked Carbon Monoxide Alarm with Self-Charging 10 Year Back-up Battery - Aico Ei3018RF

  • Product Lifespan: 10 years
  • Power: 230V mains powered with battery backup
  • Backup Battery: Re-chargeable lithium battery
  • Warranty: 5 year warranty
  • High performance CO sensor
  • Interlinking with up to 12 devices
  • Radio-interlinking via SmartLINK module (supplied)
  • Kitemarked to BS EN 50291-1: 2010
  • Suitable for ceiling installation
  • Also suitable for both the Welsh and Scottish 2022 legislation
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£108.35 inc VAT

£90.29 ex VAT

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10 Year Longlife Battery Carbon Monoxide Alarm with Digital Display - Kidde K10LLDCO

  • FREE delivery
  • Product Lifespan: 10 years
  • Battery: Sealed-in lithium battery
  • Warranty: 10 year warranty
  • Digital display of CO levels from 11ppm
  • Kitemarked to BS EN 50291-1: 2018 for home use
  • Also suitable for both the Welsh and Scottish 2022 legislation
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4.5 out of 5 stars
1 unit

£21.59 inc VAT

£17.99 ex VAT

2+ units

£20.99 inc VAT

£17.49 ex VAT

5+ units

£20.63 inc VAT

£17.19 ex VAT

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Mains Powered Radio-Interlink 2 Smoke Alarms and 1 Heat Alarm Kit with Alkaline Back-up Battery - Aico Ei140RF Series

  • Power: 230V mains powered with alkaline back-up battery
  • Back-up Battery: 9V alkaline battery (included)
  • Warranty: 5 year warranty
  • Radio-interlink with up to 12 compatible devices
  • Suitable for BS 5839-6: 2019 Grade D2 installations
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Radio-Interlinked Sealed Battery Powered Smoke & Heat Alarms - Firehawk W Series

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

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Radio-Interlinked Sealed Battery 2 Smoke Alarms & 1 Heat Alarm Kit - Firehawk W Series

  • Detector Battery: 10 Year Sealed Lithium
  • Wireless Base Battery: 7 Year Sealed Lithium
  • Warranty: 7 year manufacturer's warranty
  • Easy expansion – Interlink up to 15 alarms
  • Also suitable for the 2022 Scottish legislation
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Radio-Interlink Sealed Battery 3 Smoke and 1 Heat Alarm Kit - Firehawk W Series

  • Detector Battery: 10 year sealed lithium battery
  • Wireless Base Battery: 7 Year Sealed Lithium
  • Warranty: 7 year manufacturer's warranty
  • Easy expansion – Interlink up to 15 alarms
  • Also suitable for the 2022 Scottish legislation
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4.7 out of 5 stars

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Radio-Interlink Sealed Battery 3 Smoke, 1 Heat Alarm and CO Alarm Kit - Firehawk W Series

  • Detector Battery: 10 year sealed lithium battery
  • Wireless Base Battery: 7 year sealed lithium
  • Warranty: 7 year manufacturer's warranty
  • Easy expansion – Interlink up to 15 alarms
  • Also suitable for the 2022 Scottish legislation
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LED Recessed Downlight with Smoke Alarm - Lumi-Plugin

Supplied with a mains powered smoke alarm, this Lumi-Plugin downlight blends in seamlessly with your interior whilst reducing the amount of ceiling clutter. A choice of warm or cool white lighting options is available.

  • Suitable for living rooms, bedrooms and hallways
  • Available with warm or cool white LED options
  • Supplied with a smoke alarm to fit within the light
  • Also suitable for both the Welsh and Scottish 2022 legislation

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LED Recessed Downlight with Heat Alarm - Lumi-Plugin

The Lumi-Plugin downlight with heat alarm insert connects wirelessly to other smoke and heat alarms in the range. LED available in either cool or warm white.

  • Suitable for kitchens and areas with higher humidity
  • Replaceable LED for long life or simply a change of style
  • Heat alarm features 10 year rechargeable backup battery
  • Also suitable for both the Welsh and Scottish 2022 legislation

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Mains Radio-Interlink Smoke Alarms & Heat Alarms with Sealed Longlife Back-up Battery - FireAngel Pro Connected Series

  • Power: 230V mains powered with sealed longlife back-up battery
  • Available in Optical and Heat versions (FP1640W2-R and FP1740W2-R)
  • Interlinks via radio frequency with up to 50 units
  • Kitemarked, CE marked and suitable for BS 5839-6: 2019 Grade D1 installations
  • Compatible with the FireAngel Pro Connected Gateway
  • Please note: alarms are sold individually
  • Also suitable for the 2022 Scottish legislation
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5 out of 5 stars

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Mains Powered Smoke Alarms & Heat Alarms with Sealed Longlife Back-up Battery - FireAngel Pro 230 Series

  • 230V mains powered with lifetime lithium battery – never needs replacing!
  • 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: 2019 Grade D1 installations
  • Please note: Alarms are sold individually
  • Also suitable for the 2022 Scottish legislation
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2022 Scottish Legislation

2022 Scottish Legislation

Announced in February 2019 and in effect from February 2022, the Scottish Government updated legislation covering fire alarms in domestic properties. The new requirements, "Tolerable Standard Guidance: Satisfactory Fire Detection and Satisfactory Carbon Monoxide Detection", apply to all homes in Scotland and cover smoke, heat, and carbon monoxide alarms, as appropriate. A general summary of the new requirements are:

  • One smoke alarm in the room most frequently used during the daytime.
  • One smoke alarm in every circulation space on each storey (e.g. hallways and landings).
  • One heat alarm in each kitchen.
  • The smoke and heat alarms must be ceiling-mounted and interlinked.
  • Where there is a carbon-fuelled appliance (e.g. boiler or gas cooker) or a flue, a carbon monoxide alarm is also required.
  • All types of alarm must be mains powered (fixed wiring, not a mains plug) OR powered by a tamper-proof lifetime battery.
  • All alarms must be regularly maintained and tested in accordance with the manufacturer's instructions.

For smoke and heat alarms, it can be compared to compliance with Grades D1, D2, or F1 (which can interlink) from BS 5839-6: 2019 – see our full guide to BS 5839 Part 6 for more details on types of alarm.

It is the property owner's responsibility to ensure these alarms are correctly installed and the guidance page on gov.scot outlines advice for various types of shared ownership and tenements.

Alarm Power Requirements

Alarm Power Requirements

To comply with the updated Scottish legislation, smoke and heat alarms must be Grade D2, D1, or F1. Battery-powered Grade F1 models can only be used if they support interlinking, so care must be taken to select suitable products as most Grade F1 alarms on the market are stand-alone models. Please see the table below for more details on the Grades of alarm.

Carbon monoxide alarms do not use the same Grade distinction as smoke and heat alarms, so you must simply pay attention to the manufacturer's information regarding power source. The power requirements for carbon monoxide alarms are the same as for smoke and heat alarms: either a tamper-proof battery that lasts the full lifespan of the product, or wired into a mains circuit in the property.

Any mains-powered alarms, regardless of sensor type, must be permanently wired into a mains circuit. Alarms which use a mains plug are not suitable for the updated regulations.

Smoke & Heat Alarm Grades

British Standard 5839 Part 6 is a code of practice relating to the design, installation and maintenance of fire detection systems in domestic premises. The standard also grades fire detection systems which reflects their functionality and capability. The below table details the up-to-date grades for fire detection systems.

Alarm Grades by Power Type (BS 5839 Part 6)

BS 5839-6: 2019 Grade Alarm Power Type Grade Description
Grade F1 Battery Operated (Lithium) System of one or more battery-powered smoke alarms (and heat alarms if required). The battery must be tamper-proof and last the full life of the alarm.
Grade F2 Battery Operated (Alkaline) System of one or more battery-powered smoke alarms (and heat alarms if required). The battery is user-replaceable and will not last the full life of the alarm.
Grade D1 Mains Powered (Lithium Back-up) System incorporating one or more interlinked mains-powered smoke alarms (and heat alarms if required), each with an integral stand-by supply. They can be hardwire-interlinked or radio-interlinked. The stand-by supply must be tamper-proof and last the full life of the alarm.
Grade D2 Mains Powered (Alkaline Back-up) System incorporating one or more interlinked mains-powered smoke alarms (and heat alarms if required), each with an integral stand-by supply. They can be hardwire-interlinked or radio-interlinked. The stand-by supply is user-replaceable and will not last the full life of the alarm.
Grade C Mains Powered (Dedicated Circuit + Back-up) System consisting of fire detectors and alarm sounders (which may be domestic smoke alarms) connected to a common power supply, comprising normal mains and stand-by supply, with central control equipment.
Grade A Mains Powered (Panel - Built-in PSU + Back-up) Fire detection system incorporating control and indicating equipment to BS EN 54-2, power supply to BS EN 54-4, and installed to BS 5839 Part 1, with some very minor exceptions.

 

For a full summary of BS 5839 Part 6, please visit 'Fire Detection and Fire Alarm Systems for Buildings'.

Interlink Compatibility

Interlink Compatibility

Hardwire Interlink

Smoke alarms, heat alarms, and carbon monoxide alarms powered from a mains circuit will usually also have an interlink or interconnect terminal next to the live and neutral wire terminals. If one alarm detects a fire or CO emergency it will pass the signal to the other units which will also sound an alarm throughout the property. This is particularly important for large buildings or if the bedroom is located far away from the kitchen. Outhouses and garages can also be connected into the radio-interlinked alarm system for added peace of mind.

Mains alarms can be connected to nearby lighting circuits for power, provided the light switch does not also turn off power to the alarm, but the interlink wire must be separate and not 'piggy-back' on a mains circuit as smoke, heat, and CO alarms are not designed to take 230V in their interlink terminal. If the property does not already have mains-powered alarms wired in, or if testing one of your existing alarms does not also cause the other alarms to sound, then an electrician will need to install a new interlink cable throughout the building.

Radio-Interlink

Radio-interlinked smoke alarms, heat alarms, and carbon monoxide alarms communicate with each other via radio frequency (RF). If one alarm detects a fire or CO emergency it will pass the signal to the other units which will also sound an alarm throughout the property. This is particularly important for large buildings or if the bedroom is located far away from the kitchen. Outhouses and garages can also be connected into the radio-interlinked alarm system for added peace of mind.

Radio-interlinked alarms are sometimes referred to as wireless alarms, although this can be confusing when dealing with radio-interlinked units wired into the mains power supply in a building. Radio-interlinked alarms can be battery powered or mains powered, and we even offer battery operated smoke alarms, heat alarms, and carbon monoxide alarms with radio-interlink that contain a sealed battery which lasts the full ten years of the alarm's life.

Compatibility

Only interlink alarms with alarms from the same model range and manufacturer. Alarms from different manufacturers are not compatible and attempting to interlink them could damage the alarms. If in doubt, check the instruction manual for the alarms before purchase – we provide PDF instruction manual downloads for the majority of smoke, heat, and CO alarms on our website.

Some ranges support mixing hardwired and radio-interlink alarms in the same network, which can reduce electrician costs and disruption. All alarms on each storey would be connected together via hardwire interlink, with one alarm on each storey also being connected to each other via RF signal. This could also save money on product costs, as mains-powered alarms without radio-interlink are usually the cheapest option for interlinking alarms. Please confirm before purchase if you require this functionality.