Kidde
Kidde is one of the UK's most recognisable names in home fire safety. The range covers smoke alarms, heat alarms, carbon monoxide detectors and combined smoke and CO alarms, and you'll find Kidde products in homes, rental properties and new builds across the country.
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There's something here for most budgets and installation types. Battery options include standalone alarms and models with sealed long-life batteries that last the full life of the unit. For mains installations, the Firex KF series supports hardwire interlinking for up to 24 units. So when one alarm triggers, all of them sound.
The CO alarm range is particularly broad:
- 5, 7 and 10 year battery models
- Digital display versions showing current CO levels and peak level memory
- Models certified for use in caravans and boats
Need both smoke and CO detection in one unit? The K10SCO combined alarm uses an optical sensor for smoke and an electrochemical sensor for CO, with voice alerts that announce which danger it's detected.
We're a Kidde approved reseller. Browse our optical smoke alarms or use the filters to find the right model for your property. Not sure where to start? Get in touch by phone, email or live chat and we'll point you in the right direction.
Battery Optical Smoke Alarm - Kidde 2030-DSR
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The Kidde 2030-DSR optical smoke alarm is easy to use and great value, with a low-profile, unobtrusive design. Automatic low battery and end of life warnings which can be silenced for 24 hours.
- Battery: 9 Volt carbon zinc battery (included)
- Warranty: 3 years (product life up to 10 years)
- Optical smoke sensor reduces nuisance alarms
- Simple test & hush button plus LED status indicator
- CE marked and certified to EN 14604: 2005
£6.95 inc VAT
£5.79 ex VAT
10 Year Longlife Battery Optical Smoke Alarm - Kidde 10Y29
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- FREE delivery
- Battery: Built-in, lasts the lifetime of your alarm - GUARANTEED
- Warranty: 10 year warranty
- Features test and hush buttons
- Low Volume Test feature
- Suitable for BS 5839-6: 2019 (Grade F1 installations)
- Kitemarked to BS EN 14604: 2005
From: £14.03 inc VAT
£11.69 ex VAT
Mains Powered Optical Smoke Alarm with Back-Up Battery - Kidde Firex KF20
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- Power: Mains powered with battery backup
- Backup Battery: 9V alkaline or self-charging longlife lithium backup options
- Warranty: 6 year warranty
- Silence feature for Low Battery Chirp
- Interlinks via cable with up to 24 alarms
- Suitable for BS 5839-6: 2019 Grade D1 or D2
- Kitemarked to BS EN 14604: 2005
- Also suitable for both the Welsh and Scottish 2022 legislation
From: £19.90 inc VAT
£16.58 ex VAT
Mains Powered Optical Smoke Alarm with Back-Up Battery - Kidde Firex Sentry KF21
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- Power: 230V mains-powered with battery backup
- Backup: Optional alkaline or self-charging lithium backup battery versions
- Warranty: 10 year warranty
- Ideal installation in hallways, landings, and living areas
- Interlinks with up to 23 other alarms
- Suitable for BS 5839-6: 2019 Grade D1 or D2
- Kitemarked to BS EN 14604: 2005+AC:2008
- Also suitable for both the Welsh and Scottish 2022 legislation
From: £22.00 inc VAT
£18.33 ex VAT
Combination Carbon Monoxide and Smoke Alarm 10 Yr Warranty - Kidde K10SCO
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- Battery: 2 x AA batteries (included)
- Warranty: 10 years
- Combined Optical and Carbon Monoxide Sensor
- Ideal for areas adjacent to kitchens and near fuel burning appliances
- Suitable for BS 5839-6: 2019 Grade F2 installations
- Certified to BS EN 14604: 2005 and BS EN 50291-1
From: £20.10 inc VAT
£16.75 ex VAT
Mains Powered Heat Alarm with Back-Up Battery - Kidde Firex KF30
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- Power: 230V mains powered with battery backup
- Backup: Optional alkaline or self-charging lithium backup battery versions
- Warranty: 6 year warranty
- Test and hush buttons
- Neat slimline design
- Interlinks with up to 24 units
- Suitable for BS 5839-6: 2019 Grade D1 or D2
- Kitemarked to BS 5446-2: 2003
- Also suitable for both the Welsh and Scottish 2022 legislation
From: £31.19 inc VAT
£25.99 ex VAT
Mains Powered Heat Alarm with Back-Up Battery - Kidde Firex Sentry KF31
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- Power: 230V mains-powered with battery backup
- Backup: Optional alkaline or self-charging lithium backup battery versions
- Warranty: 10-year warranty
- Ideal for installation in kitchens and garages
- Interlinks with up to 23 other units
- Suitable for BS 5839-6: 2019 Grade D1 or D2
- Kitemarked to BS 5446-2: 2003
- Also suitable for both Welsh and Scottish 2022 legislation
From: £36.00 inc VAT
£30.00 ex VAT
Mains Powered 2 Smoke Alarms and 1 Heat Alarm Kit with Alkaline Back-up Battery - Kidde Firex KF Series
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- Power: 230V mains powered with alkaline back-up battery
- Back-up Battery: 9V alkaline battery (included)
- Warranty: 6 year warranty
- Hardwire interlink with up to 24 devices
- Suitable for BS 5839-6: 2019 Grade D2 installations
- Also suitable for both the Welsh and Scottish 2022 legislation
£69.18 inc VAT
£57.65 ex VAT
Mains Powered 3 Smoke Alarms and 1 Heat Alarm Kit with Alkaline Back-up Battery - Kidde Firex KF Series
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- Power: 230V mains powered with alkaline back-up battery
- Back-up Battery: 9V alkaline battery (included)
- Warranty: 6 year warranty
- Hardwire interlink with up to 24 devices
- Suitable for BS 5839-6: 2019 Grade D2 installations
- Also suitable for both the Welsh and Scottish 2022 legislation
£88.18 inc VAT
£73.48 ex VAT
Kidde 10Y29 Optical Smoke Alarm & K10LLCO Carbon Monoxide Detector Special Offer
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- FREE delivery
- 10 year battery powered optical smoke alarm
- Certified to BS EN 14604: 2005
- 10 year battery powered carbon monoxide detector
- Kitemarked and CE marked
£35.08 inc VAT
£29.23 ex VAT
Kidde 2030 Smoke Alarms & CO Alarms Home Pack
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- Battery: Replaceable batteries
- Product Life: 10 years
- Warranty: 3 year warranty
- 2 x optical smoke alarm and 2 x CO alarm included
- Combined test / hush button
- Compact and unobtrusive design
From: £36.29 inc VAT
£30.24 ex VAT
Mains Powered 2 Smoke Alarms and 1 Heat Alarm Kit with Self-Charging 10 Year Back-up Battery - Kidde Firex KF-R Series
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- 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
- Compliant with Scottish 2022, Welsh Landlord 2022, and Northern Ireland Landlord 2024 legislation
£133.19 inc VAT
£110.99 ex VAT
Mains Powered 3 Smoke Alarms and 1 Heat Alarm Kit with Self-Charging 10 Year Back-up Battery - Kidde Firex KF-R Series
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- 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
- Compliant with Scottish 2022, Welsh Landlord 2022, and Northern Ireland Landlord 2024 legislation
£178.27 inc VAT
£148.56 ex VAT
Kidde 2030-DSR Optical Smoke Alarm & 2030-DCR Carbon Monoxide Detector Special Offer
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- Battery powered optical smoke alarm
- Certified to BS EN 14604: 2005
- Battery powered CO detector
- Kitemarked to BS EN 50291-1: 2018 (domestic use)
£17.35 inc VAT
£14.46 ex VAT
Kidde 2030-DSR Optical Smoke Alarm & K5CO Carbon Monoxide Detector Special Offer
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- Battery powered optical smoke alarm
- Certified to BS EN 14604: 2005 and CE marked
- Battery powered carbon monoxide detector
- Kitemarked to BS EN 50291-1: 2018 and CE marked
£19.10 inc VAT
£15.92 ex VAT
Kidde 10LLCO Carbon Monoxide Detector & 10Y29 Optical Smoke Alarm Special Offer
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- FREE delivery
- 10 year battery powered CO detector
- Kitemarked to BS EN 50291-1: 2010 (domestic use)
- 10 year battery powered optical smoke alarm
- Certified to BS EN 14604: 2005
£35.08 inc VAT
£29.23 ex VAT
Battery Carbon Monoxide Alarm - Kidde 2030-DCR
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- Product Life: 10 years
- Battery: 2 x AA batteries included
- Warranty: 5 year warranty
- Separate LED indicators for alarm status
- CE marked and UKCA marked
- TUV certified to BS EN 50291-1: 2018
- Also suitable for the 2022 Welsh legislation
From: £11.50 inc VAT
£9.58 ex VAT
10 Year Life Carbon Monoxide Alarm - Kidde K5CO
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- Product Life: 10 years
- Battery: 2 x AA batteries included
- Warranty: 7 years
- LED indicators for alarm status
- CE marked and UKCA marked
- Kitemarked to BS EN 50291-1 for domestic use
- Also suitable for the 2022 Welsh legislation
From: £13.42 inc VAT
£11.18 ex VAT