SKU: 6208545960

Kidde KF20R Firex Mains Powered Optical Smoke Alarm with Sealed-In Rechargeable Battery Back-Up

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Ships within 48 hours · Estimated delivery Jul 28 - Aug 2

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Description

Kidde KF20R Firex Mains Powered Optical Smoke Alarm with Sealed-In Rechargeable Battery Back-UpKidde KF20R Firex Mains Powered Optical Smoke Alarm with Sealed In Rechargeable Battery Back Up The Kidde KF20R is 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. Optical alarms are for use in escape or circulation routes and in areas where there

Kidde KF20R Firex Mains Powered Optical Smoke Alarm with Sealed-In Rechargeable Battery Back-Up

    The Kidde KF20R is 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.

    Optical alarms are for use in escape or circulation routes and in areas where there is a danger of ignition of furniture and surroundings by cigarettes producing slow, smouldering fires. This mains-powered unit should be installed by a qualified electrician and can be used throughout the home, except in the kitchen where a Firex Heat Alarm is recommended. These alarms comply with UK Building Regulations for new housing and associated standards (Grade D BS 5839, Part 6).

    Key Features:

    • Interlink with up to 23 Firex hard-wired alarms – all alarms sound if danger is detected
    • Alarm memory – identifies source unit within interconnecting network
    • Reduced energy consumption – lower lifetime running costs
    • Dust compensation and bug screen – reduces nuisance alarms
    • Combined Test/Hush button allows regular testing of alarm function and can be used to temporarily silence nuisance alarms
    • Auto reset after activation
    • Tamper-resistant locking device prevents unauthorised removal without the use of a tool
    • Mains operation – Built-in rechargeable Lithium back-up tamper-proof battery

    General Features:

    • Model: KF20R
    • Power Supply: 230V mains-powered with rechargeable Lithium battery back-up
    • Temperature Range: 0?C to 40?C
    • Humidity Range: Up to 90% relative humidity (RH) non-condensing
    • Storage and Transport: -20ºC to +60ºC and 5–95% relative humidity (RH) non-condensing
    • Alarm Dimensions: 127 x 127 x 39mm
    • Bracket Dimensions: 133 x 133 x 6mm
    • Alarm Weight: 242g
    • Warranty: 6 years
    • Approvals: BSI certified to BS EN14604:2005
    • CE tested and certified

    Data Sheet:

    Click Here for Data Sheet

    Instruction Manual:

    Click Here for Instruction Manual
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 6208545960

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    4.2 ★★★★★
    Based on 24 reviews
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    Verified Purchase
    Taylor Ashley
    Bozeman, US
    ★★★★★ 4
    Okay serum, not as good as the cream though
    I am obsessed with the cream version of this so I thought I’d give this a try. The dropper top allows for easy application. The formula is light and non greasy and absorbs easily. No harsh fragrances. I would use it when I had eczema flares on my face and feel like it didn’t work near as well in helping with skin irritation as the cream does. As of now I don’t use it as part of my regular skin care. Do I think it’s a bad product? No, but it didn’t really work wonders for me. Not sure I would purchase again.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 21, 2026
    E
    Verified Purchase
    Elizabeth from Houston
    Bozeman, US
    ★★★★★ 5
    Helps with redness and softens skin
    I have sensitive, mild rosacea skin. Had a facial recently and the aesthetician suggested I get a serum to help with moisturizer as I am almost 40. I’ve tried a lot of serums and either they are sticky and not really hydrating or break my skin out in a rash. This serum is amazing. Helps calm the redness in my cheeks and my skin is moisturized and soft all day. It feels a little sticky at first but it goes away. I apply in this order OSEA sea mineral mist toner to prep the skin, this serum and top off with Chanel La Solution 10 for sensitive skin.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 27, 2025
    C
    Verified Purchase
    carolyn
    Lowell, US
    ★★★★★ 5
    Sensitive skin
    Such a good product. I use after micro needling when skin is sensitive. Also a great product to use as a barrier serum when starting tretinoin cream.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 24, 2026
    L
    Verified Purchase
    Lindsay
    New York, US
    ★★★★★ 5
    Saved my skin during an eczema flare up
    This saved my skin! I had an eczema flare on my face, and my usual products weren’t working. A friend recommended the Avene brand and within 3 days of using this rescue barrier serum, my flare was almost completely gone! This saved my face!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 11, 2026
    B
    Verified Purchase
    B Helton
    Natrona Heights, US
    ★★★★★ 1
    PLEASE REVIEW — FORMULA CHANGED!!!
    I wish I would’ve posted a review PRIOR to the formula changing but just know that I LOVED this serum. I’ve struggled with hormonal acne (PCOS) and eczema for as long as I can remember. Finally, last summer my dermatologist put me on (3) different RX including Spironolactone and Accutane. I was so tired so I stopped everything except for CeraVe cleanser, retinol (Tretinoin) and CeraVe healing ointment. My made up skin routine was working until I used too much Tretinoin and burned my face. I had read great reviews about this product so I thought, I might as well try it — and IT WORKED! I’ve been using this product for almost a year and I loved it. However, 3 weeks ago when I ordered it, I noticed the bottle had a green tint. I could tell after one use that the feel of the serum was different, more watery, not as thick as it used to be. The smell was also different. Still, I kept using it for nearly 2 weeks and I experienced 2 breakouts! Sure enough, I stopped the product and within a few days, my skin was back to normal. I am very upset because as someone who has extremely sensitive skin, this worked but unfortunately, the new formula isn’t for me.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 14, 2026

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