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£20.45
About as cheap as it gets — within 5% of the all-time low it hit 3 months ago.
£20 today · all-time low £20 (Aug 2026) · usually £20
Kidde Firex KF20 Optical Smoke Alarm - Mains Powered
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Price History & Forecast
Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.
Last 77 days · 77 data points (no recent data)
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Price Distribution
Price distribution over 77 days • 2 price levels
Price Analysis
Most common price: £20 (74 days, 96.1%)
Price range: £20 - £21
Price levels: 2 different prices over 77 days
Description
Key Features
Optical detection technology is optimized to detect slow smouldering fires, such as those caused by cigarettes on bedding or furniture.
Mains operated with a built-in battery backup ensures your home remains protected even if there is a power cut.
Interlink capability allows you to connect this unit with up to 23 other Firex hard-wired alarms for whole-house coverage.
Reduced nuisance alarms mean fewer interruptions from steam or cooking particles compared to other detection methods.
Includes a combined test/hush button and auto reset function for easy maintenance and management of the device.
Features a tamper-resistant locking device to ensure the alarm remains securely in place.
Certified to the highest BSi Kitemark standards to meet strict quality and reliability requirements.
Product Specifications
- Brand
- Kidde
- Model
- KF2
- Colour
- White
- ASIN
- B006J56XQU
- Domain
- Amazon UK
- Release Date
- 17 June 2018
- Listed Since
- 07 December 2011
Barcode
No barcode data available
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