Kidee KF20 Optical Smoke Alarm
Firex KF20 Interconnectable Optical Smoke Alarm
Overall Rating: 4.3 / 5 (average from multiple review sources, as of 25 Feb 2026)
Based on a total of 67,975 customer reviews from independent review platforms.
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Based on a total of 67,975 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:
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Cheapest Price
WEB_ONLY
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£15.50
Delivery from £4.00
Kidde KF20 Firex Mains Powered Optical Smoke Alarm with Alkaline Battery Back-Up
Overall Rating: 4.2 / 5 (average from multiple review sources, as of 1 Feb 2026)
Based on a total of 2,795 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 2,795 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
2-3 Days
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£17.70
Delivery from £0.00
Kidde KF20 Interconnectable Optical Smoke Alarm with 9V Back-up Battery
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 22 Feb 2026)
Based on a total of 22,153 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 22,153 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.
Will usually delivered within 7 - 9 working days of receiving cleared payment.
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£18.49
Delivery from £3.95
Kidde KF20 Kf20 Mains-Powered Interconnectable Optical Smoke Alarm 230V
Overall Rating: 4.5 / 5 (average from multiple review sources, as of 1 Feb 2026)
Based on a total of 15,776 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 15,776 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.
3-5 working days
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£19.67
Free Delivery
Kidde KF20 Optical Smoke Alarm
In stock
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£20.29
Free Delivery
Kidde KF20 Optical Smoke Alarm
In stock
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£21.75
Free Delivery
Kidde Firex KF20 Hard Wired Mains Optical Fire Smoke Alarm
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 22 Feb 2026)
Based on a total of 22,153 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 22,153 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.
Will usually delivered within 3 - 4 working days of receiving cleared payment.
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£21.89
GBP 21.89 / Unit
Free Delivery
Optical Smoke Alarm Mains Hardwired with 9V Battery Back Up - Kidde Firex KF20
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 22 Feb 2026)
Based on a total of 22,153 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 22,153 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.
Will usually delivered within 2 - 3 working days of receiving cleared payment.
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£22.06
GBP 22.06 / Unit
Free Delivery
Kidde KF20 Optical Smoke Alarm
In stock
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£22.14
Free Delivery
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Firex KF20 Interconnectable Optical Smoke Alarm - Details
▶ Finding you the best price!
We have found 9 prices for Firex KF20 Interconnectable Optical Smoke Alarm. Our price list is completely transparent with the cheapest listed first. Additional delivery costs may apply.
Firex KF20 Interconnectable Optical Smoke Alarm - Price Information
- Cheapest price: £15.50
- The cheapest price is offered by Wickes.co.uk. You can order the product there.
- The price range for the product Firex KF20 Interconnectable Optical Smoke Alarm is €£15.50to €£281.55 with a total of 9 offers.
- Payment methods: The online shop Wickes.co.uk supports: PayPal, Visa, Mastercard
- Delivery: The shortest delivery time is WEB_ONLY working days offered by Wickes.co.uk.
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Kidde Smoke Alarm Mains Optical Hard Wired Firex KF20 Interlink 230V, Fast P & P
£24.99
GBP 24.99 / Unit
ebay.co.uk
Free Delivery
Cheapest offer
The Firex Interconnectable Optical Smoke Alarm is a mains-powered unit designed for safety and convenience capable of interlinking with up to 23 Kidde hard-wired alarms including ionisation optical or heat types. When one unit detects danger it triggers all interconnected alarms enhancing alertness in your home or office. This smoke alarm is ideal for detecting smouldering fires making it suitable for use in hallways bedrooms and offices but it should not be installed too close to kitchens or shower rooms. It features a battery backup for reliability and comes with all necessary installation fixings including screws and wall plugs.
£15.50
WEB_ONLY
Wickes.co.uk
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