Top 10 Combined Optical Smoke and Heat Alarms UK – Smoke Alarms

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1. Fireangel

White, FireAngel Optical Smoke Alarm with 10 Year Sealed For Life Battery, new gen , FA6620-R ST-622 / ST-620 replacement

Fireangel - Fireangel alarms are rigorously tested to ensure unrivalled quality and longevity and come with a 5 year manufacturer's warranty for peace of mind. The perfect replacement for fireangel st-622, st-620 and ST-750 models, this alarm will fit on to the existing baseplate, or can be installed easily using the supplied base and 2 screws.

With optical sensing technology smoke is rapidly detected as it enters the alarm chamber, for a quick reaction to slow burning fires. It is recommended that smoke alarms are replaced every 10 years. Not suitable for Scottish homes under the new regulations. Suitable for homes in England and Wales.

Give yourself vital time to replace your alarm by silencing low battery warnings for 8 hours using the sleep easy feature. Featuring a quiet test function which means you're less likely to wake up loved ones or disturb the neighbours when testing your alarms. The alarm comes with a sealed, tamper proof battery that will last the lifetime of the alarm.
Height3.2 cm (1.26 Inches)
Length11.8 cm (4.65 Inches)
Weight0.14 kg (0.3 Pounds)
Width11.8 cm (4.65 Inches)
Part NumberFA6620-R
Warranty5 year manufacturer's warranty.

2. Masterpart

Masterpart FireAngel Smoke & Heat Detection Alarm Mains Powered 9V Battery Backup SW1-R

Masterpart - Masterpart the fireangel sw1-r can be interconnected into a network of up-to 12 Smoke, Heat or CO alarms or wirelessly interconnected into a network of up to 50 alarms with the RF interlink base RF-BW-T. Interconnect up to 50 alarms with the rf interlink base rf-burg-wachter-t or hardwire interconnect up to 12 SW1, Hw1 or CW1 alarms.

Large central button to test and silence. Replaceable 9v battery back-up. Interconnect up to 50 alarms with the RF Interlink Base RF-BW-T or hardwire. Optical smoke-sensing technology. Large central button to test and silence. Can be used in the hallway, landing, bedroom and living room.

Interconnect up to 12 alarms. Certified to bs en 14604:2005. Fireangel optical smoke-sensing technology detects all types of fire, including slow smouldering fires. Battery life: 1 x 9 V 1 year replaceable battery Included. Masterpart fireangel smoke & heat Detection Alarm Mains Powered 9V Battery Backup SW1-R. Mains powered with replaceable 9 V battery back-up. Certified to bs en 14604: 2005.

3. Hispec

Hispec Mains Powered Smoke Alarms Heat Detectors and CO Detectors Fire Safety Kits with 9V Back Up Battery: Interconnectable & Fully Compliant to Welsh 2022 Legislation 4 Smoke / 1 Heat

Hispec - These hispec alarms and detectors all fully comply with the new 2022 Welsh Renting Homes fire protection Regulations. Reliable and trusted protection from industry leaders HiSPEC.

Peace of mind fire safety for your family and pets with mains smoke alarms, heat and carbon monoxide detectors with 9V back up battery. Time saving and easy fast fix installation with the ability to interlink up to 20 wired alarms. Heat detectors are suitable for kitchens and carbon monoxide detectors are for around any solid burning fuel source. Smoke alarms are suitable for living rooms, hallways, landings, bedrooms, lofts and extensions. All alarms comply with bs 5839-6:2019 and are fully accredited by the British Standards Institute BSi.
Height7.4 cm (2.91 Inches)
Length12 cm (4.72 Inches)
Weight0.16 kg (0.36 Pounds)
Width12 cm (4.72 Inches)


Wireless Interlinked Smoke and Heat Alarm with 10 Year Battery Life,EN14604,BS5446,CE Certified,Scotland Law Compliant,Interconnected Fire Alarm Smoke Detector2 Smoke / 1 Heat

LEVSUPTY - Interlinkd smoke alarm the wireless battery-operated interlinkd smoke alarms can interconnect with each other, One goes all go wireless interconnected smoke alarms so that they all sound when one is activated, keeping you and your family safe. Up to 20~50 compatible interconnected smoke alarms can communicate with each other and alert you when there is a problem across the house even in a different room or on a different floor.

A one-touch hush button enables to silence false alarms and allows you to test the unit monthly, which is more convenient than disabling the unit. Wide coverage of 20-40m². Easy installation smoke detector comes with screws and mounting brackets, easy to install in several minutes since there are no wires needed. 10 years battery & photoelectric sensor interconnected smoke alarm provides 10 years of continuous power with a built-in lithium battery, no need to change the battery constantly. Photoelectric sensor alarm detects the large particles typical of smoky, saving on energy while ensuring the alarm is always on, smouldering fires while reducing the number of false alarm.

Loud 85db sound & hush button battery-powered interconnected smoke alarm features a loud 85-decibel sound alarm that can wake even the soundest of sleepers and alert you where the danger is located. Safety certification & reliable after-sales services: all levsupty alarms are approved by the TÜV and are rigorously tested to meet the EN 14604 standard; comes with a 90-day money-back guarantee, a 5-year warranty, and lifetime customer support with one working day; feel free to contact us if you have any questions. Applicable to housing, warehouse, shopping mall, laundry room, hospital, hotels, office, schools do not use in bathroom, factory, company, kitchen finished attics and basements.
Height5.3 cm (2.09 Inches)
Length12.5 cm (4.92 Inches)
Width12.5 cm (4.92 Inches)
Part NumberAJ-762SI4

5. Kidde

2 x Kidde Firex KF2 4973 Mains Powered Optical Smoke Alarm

Kidde - Auto reset after activation. Tamper-resistant locking device prevents unauthorised removal without the use of a tool. Combined test/hushtm button allows regular testing of alarm function and can be used to temporarily silence nuisance alarms.

Once interlinked, be they ionisation, the detection of the relevant danger by an individual unit will sound across all the connected alarms. Reduced energy consumption – lower lifetime running costs * compared to previous Firex alarms. Mains operation – 9V Alkaline back-up battery supplied as standard. Interlink with up to 23 kidde Firex hard-wired alarms – all alarms sound if danger is detected.

Warranty 6 years, bsi certified to bs en14604:2005 and ce tested and certified to 0086-CPD-535595 15 EN14604:2005. Mains-powered optical smoke alarm that can be interlinked with up to 23 other Kidde mains alarms, optical or heat. Alarm memory – identifies source unit within interconnecting network. Dust compensation and bug screen – reduces nuisance alarms.
Part NumberKF2 4973
ModelKF2 4973

6. Safelincs

Kidde 10SCO Combination 10 Year Life Carbon Monoxide and Smoke Alarm 1

Safelincs - Different voice warnings for smoke and CO with loud 85dB alarm noise. 10 year sensor life and manufacturer’s warranty. Two alarms in one unit for space saving and convenience. 9v alkaline battery included, must be replaced every 1 -2 years. Kitemarked and ce marked. Supplied with fixings: 2 x screws and 2 x rawl plugs.
Height4.5 cm (1.77 Inches)
Length14.5 cm (5.71 Inches)
Width14.5 cm (5.71 Inches)
Warranty10 years from date of purchase.

7. Fireangel

White, Fireangel ST-622T 10 Year Thermally Enhanced Optical Smoke Alarm

Fireangel - Product life span: 10 years: Battery life: 10 year sealed for life battery. Thermoptek multi-sensor rapidly detects fast flaming and slow smouldering fires. Certified to bs en14604: 2005. Thermoptek optical smoke sensor. Smart silence - silence false alarms. Toast proof - reduces nuisance alarms.
ManufacturerFireAngel Safety Technology Ltd
Height3.3 cm (1.3 Inches)
Length12.9 cm (5.08 Inches)
Weight0.15 kg (0.34 Pounds)
Width12.9 cm (5.08 Inches)
Part NumberST-622T

8. Fireangel

Multi-Colour, Fireangel ST-622Q 10 Year Thermally Enhanced Optical Smoke Alarm

Fireangel - Test and smart silence button - allows the alarm to be silenced for up to 10 minutes in the event of a known false alarm. Sleep easy function - low battery end of life chirp can be silenced for eight hours so you sleep easy at night.

Thermoptek sensing technology - detects slow smouldering fires and rapid rise in temperature, a fast response to all fire types. The ground-breaking thermoptek technology in the ST-622Q provides responsiveness to all fire types in one alarm. Positioning - bedroom, landing, hallways, living room, dining room. Toast proof - reduces nuisance alarms and smart silence button. Battery powered smoke alarm - 10 years Panasonic battery lifespan battery Included, never needs replacing.
ManufacturerFireAngelFireAngel ST-622R Thermoptek Smo
Height3.3 cm (1.3 Inches)
Length12.9 cm (5.08 Inches)
Width12.9 cm (5.08 Inches)
Part NumberST-622Q
Warranty10 years.

9. Veltz

Heat & Carbon Monoxide Alarm Bundle | Scotland Law Compliant | Pre Linked | 10 Year Battery | CE & BS Certified | LINKD Alarms | Easy Setup | UK Phone & Email Support, Wireless Interlinked Smoke

Veltz - Uk company place your trust in an experienced and fully insured uk company. Easy set up this bundle is ‘pre linked’ for your convenience. This spares you the hassle of frequent battery changes whilst giving you peace of mind that your home is always protected even during power cuts. There is no need for special tools or to hire an electrician.

Certified to bs en14604:2005, bs 5446-2:2003 & british kitemark en 50291-1 standards beware competitor systems do not have the correct certification and your home will not be compliant! 10 year battery all our fire alarms come with a built in tamper proof 10 Year Lithium Ion battery. We offer a no-hassle warranty on all our products. Wireless interlinked alarms all linkd alarms wirelessly interlink with each other. Cutting edge technology our smoke alarms use the latest photoelectric sensor technology which is 5 times more accurate and reacts faster than conventional sensors.

Simply switch the linked smoke & heat alarms on, test them and then fit them around your home! Adhesive pads & screws are included with each alarm making fitting a breeze. Simply power the alarms on, test them and then fit them around your home! Done in seconds! Compliant with scottish regs our interlinked smoke and heat alarms are 100% compliant with the new scotland regs. If one alarm is triggered - ALL alarms will sound together. Reliable performanceour interconnected alarm system creates a ‘mesh’ style network where each alarm is connected to all other alarms.
ManufacturerLINKD Alarms
Height4.3 cm (1.69 Inches)
Length10.9 cm (4.29 Inches)
Width10.9 cm (4.29 Inches)
Part NumberLINKD | Advanced Bundle (Pre Linked)
ModelPreLinked 1xLINKD101 3xLINKD201 1x301
Warranty5 year full warranty.

10. Kidde

Kidde KF3 Mains Heat Alarm

Kidde - Tamper-resistant locking device. Combined test/hush button. Auto reset. Mains operation. Interlink with up to 23 Firex hard-wired alarms.
Part NumberKF3