Twin Pack Kidde Firex KF20 Mains Powered Optical Smoke Alarm with 9V Back Up Batteries | KF2 | 4973
Twin Pack Kidde Firex KF20 Mains Powered Optical Smoke Alarm with 9V Back Up Batteries | KF2 | 4973
Overall Rating: 1.5 / 5 (average from multiple review sources, as of 3 Oct 2026)
Based on a total of 70 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 70 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
In stock
Direct debit
Direct debit
Mastercard
Mastercard
Visa
Visa
£38.99
Free Delivery
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 19 Sept 2026)
Based on a total of 38,138 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 38,138 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.
1-3 working days
PayPal
PayPal
Mastercard
Mastercard
Visa
Visa
£39.95
Delivery from £6.00
2 x Kidde Firex KF2 4973 Mains Powered Optical Smoke Alarm
Overall Rating: 4.4 / 5 (average from multiple review sources, as of 1 Oct 2026)
Based on a total of 137,508 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 137,508 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 days
PayPal
PayPal
Mastercard
Mastercard
Visa
Visa
£54.63
Free Delivery
Cheapest offer
Mains-powered optical smoke alarm that can be interlinked with up to 23 other Kidde mains alarms, be they ionisation, optical or heat. Once interlinked, the detection of the relevant danger by an individual unit will sound across all the connected alarms. Interlink with up to 23 Kidde Firex hard-wired alarms - all alarms sound if danger is detected Mains operation - 9V Alkaline back-up battery supplied as standard Reduced energy consumption - lower lifetime running costs (* compared to previous Firex alarms) Combined Test/HushTM button allows regular testing of alarm function and can be used to temporarily silence nuisance alarms
£38.99
In stock
Amazon-marketplace.co.uk
🤖 Ask ChatGPT
💡 Is it worth the price?
🔁 Better alternatives?
⭐ What do users say?
Twin Pack Kidde Firex KF20 Mains Powered Optical Smoke Alarm with 9V Back Up Batteries | KF2 | 4973 - Details
▶ Finding you the best price!
We have found 3 prices for Twin Pack Kidde Firex KF20 Mains Powered Optical Smoke Alarm with 9V Back Up Batteries | KF2 | 4973. Our price list is completely transparent with the cheapest listed first. Additional delivery costs may apply.
Twin Pack Kidde Firex KF20 Mains Powered Optical Smoke Alarm with 9V Back Up Batteries | KF2 | 4973 - Price Information
- Cheapest price: £38.99
- The cheapest price is offered by Amazon-marketplace.co.uk. You can order the product there.
- The price range for the product Twin Pack Kidde Firex KF20 Mains Powered Optical Smoke Alarm with 9V Back Up Batteries | KF2 | 4973 is €£38.99to €£54.63 with a total of 3 offers.
- Payment methods: The online shop Amazon-marketplace.co.uk supports: Direct debit, Mastercard, Visa
- Delivery: The shortest delivery time is In stock working days offered by Amazon-marketplace.co.uk.
Similar products
Kidde 10Y29 - 10 Year Longlife Battery Optical Smoke Alarm
£28.50
GBP 14.25 / Unit
ebay.co.uk
Free Delivery
Kidde 2030-DSR3T Battery Powered Optical Smoke Alarm with 3-Year Battery Life Twin Pack
£13.95
westbasedirect.com
Free Delivery
Kidde Optical Smoke Alarm Detector 2030-DSR, 9v Battery Included, Twin Pack of 2
£20.99
GBP 10.50 / Unit
ebay.co.uk
Free Delivery
Kidde Carbon Monoxide Alarm K5CO 5CO, 10 Year Life, CO Detector, Twin Pack of 2
£34.99
GBP 17.50 / Unit
ebay.co.uk
Free Delivery
Twin Pack Kidde Firex KF20 Mains Powered Optical Smoke Alarm with 9V Back Up Batteries | KF2 | 4973
£89.98
onbuy.com
Free Delivery
Don't forget your voucher code:
Report Illegal Concerns
You are about to report a violation based on the EU Digital Services Act (DSA).