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Our range of smoke detectors & heat alarms include battery & mains powered, radio-interlinked & 10 year sealed alarms.
From £6.42 inc VATOur battery operated smoke alarms are suitable for homes and are manufactured by quality suppliers such as Kidde, FireAngel & Ei.
From £6.42 inc VATMains powered smoke detectors and heat alarms certified to BS 5839 Part 6 Grades D, D1, & D2 for new domestic buildings and extensions.
From £18.83 inc VATRadio-interlinked smoke alarms connect through radio frequency signals to ensure a fire alarm is heard in the entire building.
From £22.79 inc VATOptical smoke alarms are good at detecting smouldering fires such as soft furnishing. Best for living rooms, bedrooms & hallways.
From £6.42 inc VATHeat alarms detect changes in temperature in a room. Ideal for kitchens & garages where smoke or mist may often be present.
From £12.59 inc VATSmoke detectors and heat alarms with sealed-in longlife lithium batteries that don't require replacing and last for 10 years.
From £13.55 inc VATMulti-sensor alarms combine different sensor types such as CO detectors and smoke detectors for optimum protection.
From £21.90 inc VATA range of ideal replacement alarms for discontinued products in the Aico, Ei Electronics, DETA and BRK ranges.
From £4.43 inc VATThis range of devices are designed to alert those with poor / no hearing to fire danger. Wired & wireless alarm systems available.
From £82.67 inc VATComply with the updated landlords regulations in Northern Ireland from September 2024 with this range of smoke, heat, and carbon monoxide alarms.
View ProductsComply with the updated landlords regulations in England from October 2022 with this range of smoke, heat, and carbon monoxide alarms.
View ProductsOur range of smoke, heat, and carbon monoxide alarms suitable for the updated legislation coming into effect in Scotland in February 2022.
View ProductsSmoke, heat, and carbon monoxide alarms for Welsh landlords to comply with the updated regulations coming into effect in July 2022.
View ProductsSmoke alarm replacements, spare parts, batteries, accessories, upgrade components and end-of-line products.
From £1.43 inc VATA range of remote controls and simple and easy to use test sprays as well as cleaning products for your smoke alarms.
From £19.99 inc VATSave money by purchasing smoke alarm and heat alarm bundles - discounts applied for purchasing bundles and alarm packages.
From £23.99 inc VATA list of replacement smoke and heat alarms for discontinued Kidde Safety and Ei Electronics alarm models.
More InfoIonisation smoke alarms are particularly good at detecting fast flaming fires. Best for landings and office spaces.
From £21.00 inc VATA collection of helpful articles and guides designed to help you understand and chose the best products for your requirements.
View Help & AdviceVideos which are designed to offer introductions, interactive solutions and overviews of our products.
View Product VideosSafelincs offers a wide range of smoke alarms and heat detectors each of them has been manufactured by the best brands available. We offer alarms from Kidde, FireAngel, HiSPEC, UltraFire, Firehawk and Ei / Aico. Each alarm comes with a manufacturer’s warranty, is certified to the relevant standard, and is kitemarked / CE marked.
Ionisation smoke alarms use the oldest form of smoke detection and are very sensitive to smoke, especially to fast flaming fires such as burning paper. Ionisation smoke alarms are best installed on landings. Due to a small amount of radioactive material inside the detector, Ionisation alarms have now been discontinued by the manufacturers.
Optical smoke detectors are designed to 'see' smoke and have a quick response rate to smouldering fires while being less sensitive to false alarms. Some of the best areas to install optical smoke alarms are near kitchens (not in kitchens), e.g. dining rooms and adjoining hallways. They are also ideal for bedrooms and living rooms, and landings where smouldering fires are likely.
Heat alarms are unlikely to ever false alarm, as they only measure the temperature in the room and trigger an alarm only when a certain temperature or speed of rise in temperature is recorded. Heat alarms are designed to be installed in kitchens and garages.
Wireless smoke alarms on our website usually referred to as radio-interlinked smoke alarms. This is less confusing, as some radio-interlinked alarms will still require wiring into the mains power supply. The main benefit of wireless or radio-interlinked smoke detectors is that they are radio-linked to each other; therefore, if one smoke alarm detects a fire then all the smoke alarms will go off. This ensures that all residents in a building are notified if a fire breaks out even if this is in a remote part of the building. There are longlife battery operated wireless smoke alarms available that make any wiring with a power supply unnecessary - even in a building type that would normally require mains operated smoke alarms.
Our radio-interlinked smoke detectors are digitally coded which means that they are not affected by any other equipment or by a similar system being installed nearby. When the smoke alarm system is installed, a 'training-in' button is pressed on each smoke alarm which trains the alarms to recognise each other as a 'family'.
Wireless call points and other accessories can be installed and linked to the alarms, including compatible carbon monoxide alarms and deaf alerters.
This is a short introduction to smoke and heat alarms classified in the British Standard BS5839 part 6 as Grade D and F. These smoke detectors are typically found in housing and small businesses/ organisations. For more detail help and advice please see our help guide.
In new built domestic properties and substantial extensions, Building Regulations will determine the standard applicable, usually Grade D.
Existing Buildings: Domestic, owner-occupied housing: BS5839 part 6 Grade F. Extensions of domestic, owner-occupied housing: BS5839 part 6 Grade D. Small businesses, church halls, many let properties: BS5839 part 6 Grade D with additional Manual Break Points in circulation spaces and sometimes additional Grade F smoke or heat alarms within let flats.
What do the different Grades mean?
Grade D: Mains-powered, interlinked smoke detectors and heat alarms. These are usually powered with a cable from the nearest light fitting. To create an interlink (all alarms go off at the same time in the case of a fire) they either require cable connection between the units or a radio-interlink connection. In businesses and larger let properties, these are often combined with manual break points.
With the appearance of ten year sealed smoke alarm units with radio-interlink, these are becoming more acceptable as an alternative to mains-powered, interlinked smoke alarms. Radio-interlinked manual break points with longlife batteries are also available. However, we still recommend you check with your Building Inspector (in case of extensions), Local Council (rented accommodation), Fire Service (business) to ensure these alternative alarms are acceptable.
Grade F: Battery operated, free standing smoke detectors and heat alarms. On their own they are mainly designed for domestic, owner-occupied housing. However, F Grade alarms with radio-interlink (especially when provided with 10 year sealed lithium batteries) can sometimes be installed as if they were Grade D. Again, we recommend that you check first with the relevant authority.