Kidde Firex Kf20 Twin Pack -Mains Powered Smoke Alarm With Alkaline Back-Up Battery
Kidde Firex Kf20 Twin Pack -Mains Powered Smoke Alarm With Alkaline Back-Up Battery
Overall Rating: 3.0 / 5 (average from multiple review sources, as of 15 Aug 2026)
Based on a total of 36,857 customer reviews from independent review platforms.
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Based on a total of 36,857 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Cheapest Price
1-3 working days
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£35.95
Delivery from £6.00
Twin Pack Kidde Firex KF20 Mains Powered Optical Smoke Alarm with 9V Back Up Batteries | KF2 | 4973
Overall Rating: 4.8 / 5 (average from multiple review sources, as of 11 Aug 2026)
Based on a total of 80,524 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 80,524 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Cheapest Total Price
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£38.99
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Twin Pack Kidde Firex KF20 Mains Powered Optical Smoke Alarm with 9V Back Up Batteries | KF2 | 4973
Overall Rating: 4.8 / 5 (average from multiple review sources, as of 11 Aug 2026)
Based on a total of 80,524 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 80,524 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
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£39.30
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Twin Pack Kidde Firex KF20 Mains Powered Optical Smoke Alarm with 9V Back Up Batteries | KF2 | 4973
Overall Rating: 4.8 / 5 (average from multiple review sources, as of 11 Aug 2026)
Based on a total of 80,524 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 80,524 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
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£39.56
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Twin Pack Kidde Firex KF20 Mains Powered Optical Smoke Alarm with 9V Back Up Batteries | KF2 | 4973
Overall Rating: 4.8 / 5 (average from multiple review sources, as of 11 Aug 2026)
Based on a total of 80,524 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 80,524 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
In stock
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£40.14
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Twin Pack Kidde Firex KF20 Mains Powered Optical Smoke Alarm with 9V Back Up Batteries | KF2 | 4973
Overall Rating: 4.8 / 5 (average from multiple review sources, as of 11 Aug 2026)
Based on a total of 80,524 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 80,524 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
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£43.99
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Cheapest offer
The updated Kidde Firex KF20 alarm is a mains powered, interlinking optical smoke alarm that use up to 70% less energy than previous Firex models. The KF20 has an alkaline battery back-up. The units are hard wired and can be interlinked with other units from the series to create all round fire protection within the home.
£35.95
1-3 working days
Diy.com (B&Q)
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Kidde Firex Kf20 Twin Pack -Mains Powered Smoke Alarm With Alkaline Back-Up Battery - Details
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We have found 6 prices for Kidde Firex Kf20 Twin Pack -Mains Powered Smoke Alarm With Alkaline Back-Up Battery. Our price list is completely transparent with the cheapest listed first. Additional delivery costs may apply.
Kidde Firex Kf20 Twin Pack -Mains Powered Smoke Alarm With Alkaline Back-Up Battery - Price Information
- Cheapest price: £35.95
- The cheapest price is offered by Diy.com (B&Q). You can order the product there.
- The price range for the product Kidde Firex Kf20 Twin Pack -Mains Powered Smoke Alarm With Alkaline Back-Up Battery is €£35.95to €£43.99 with a total of 6 offers.
- Payment methods: The online shop Diy.com (B&Q) supports: PayPal, Visa, Mastercard
- Delivery: The shortest delivery time is 1-3 working days working days offered by Diy.com (B&Q).
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