--- product_id: 388701532 title: "Replacement for Kidde KF10 Mains Powered Smoke Alarms" brand: "kidde" price: "₩76781" currency: KRW in_stock: true reviews_count: 8 url: https://www.desertcart.kr/products/388701532-replacement-for-kidde-kf10-mains-powered-smoke-alarms store_origin: KR region: South Korea --- # 230V mains powered with battery backup Interlinkable with older Kidde alarms 6-year manufacturer’s warranty Replacement for Kidde KF10 Mains Powered Smoke Alarms **Brand:** kidde **Price:** ₩76781 **Availability:** ✅ In Stock ## Summary > 🛡️ Upgrade your home safety with Kidde KF20 — protection that’s wired for peace of mind! ## Quick Answers - **What is this?** Replacement for Kidde KF10 Mains Powered Smoke Alarms by kidde - **How much does it cost?** ₩76781 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/388701532-replacement-for-kidde-kf10-mains-powered-smoke-alarms) ## Best For - kidde enthusiasts ## Why This Product - Trusted kidde brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart Silence:** Low battery chirp silenced for 8 hours for uninterrupted peaceful nights - • **Reliable Power:** 230V mains powered with 9V alkaline battery backup ensures continuous protection - • **Seamless Upgrade:** Direct replacement for multiple older Kidde models without rewiring hassle - • **Legislation Ready:** Compliant with 2022 Scottish fire alarm regulations and BS EN 14604:2005 standards - • **User-Friendly Design:** LED indicator plus combined test/hush button for easy monitoring and control ## Overview The Kidde KF20 is a mains-powered optical smoke alarm with a 9V battery backup, designed as a direct replacement for multiple older Kidde models. It features interlinking capability with compatible alarms, a low battery hush function, and complies with the latest 2022 Scottish fire safety legislation. CE and Kitemarked to BS EN 14604:2005, it offers reliable, user-friendly protection backed by a 6-year warranty. ## Description The Kidde KF10 is a mains-powered smoke alarm with a 9V back-up battery with the capability of interlinking with other Firex KF series alarms via hardwire. The ionisation-based sensor in the KF10 has been discontinued by Kidde and the ideal alternative is the KF20. The KF20 uses all the same features of the KF10, however, it adopts the newer optical sensor technology using the same base plate and connector. This ensures the smooth transition from one alarm to the next without the need for an electrician. This alarm is also suitable for the updated 2022 Scottish legislation for fire alarms in homes. CE marked and Kitemarked to BS EN 14604: 2005. Suitable for installations complying to BS 5839-6: 2019 Grade D2 LED indicator Combined Test / Hush button Low battery warning chirp – Silence for 8 hours for a peaceful night Supplied with fixings and a coloured dust cover (ideal for use when decorating) The Kidde KF20 is also the replacement for a number of older models, and can be electrically interlinked with them. However, the new model cannot be used on the old base plates for the following units as they use different style connector blocks so an electrician will be needed: 123i / 1239HI 1275H KF1R KF10R Please see the table below for a summary. THE POWER TO PROTECT Founded by Walter Kidde, a pioneer in early smoke detection and fire suppression, Kidde is one of the world’s largest manufacturers of fire safety products. Kidde is committed to ensuring our products are safe and dependable, especially those related to life safety such as smoke alarms, carbon monoxide alarms, fire extinguishers and escape ladders. Featuring voice alerts, Alarm will announce either 'FIRE! FIRE!' or 'WARNING! CARBON MONOXIDE!' depending on which danger it detects. Install a reliable CO detector in your home to give your family the warning needed to help prevent CO poisoning. ## Features - Kidde KF20: 230V mains powered with 9V alkaline battery backup - The KF20 is the direct replacement for the following models: KF1, 4870 / 4881 and 1240C / IAR230C - The KF20 is also the replacement for a number of older models and can be electrically interlinked with them. However, the following alarms use different style connector blocks so an electrician will be needed: 123i / 1239HI, 1275H, KF1R and KF10R - This alarm is suitable for the updated 2022 Scottish legislation for fire alarms in homes - CE marked and Kitemarked to BS EN 14604: 2005. Suitable for installations complying to BS 5839-6: 2019 Grade D2 - LED indicator - Combined Test / Hush button - Low battery warning chirp – Silence for 8 hours for a peaceful night - Supplied with fixings and a coloured dust cover (ideal for use when decorating) - Six year manufacturer's warranty ## Technical Specifications | Specification | Value | |---------------|-------| | Alarm | Visual | | Asin | B09N7BFW6P | | Best Sellers Rank | 2,013 in DIY & Tools (See Top 100 in DIY & Tools) 13 in Smoke Alarms | | Brand | Kidde | | Colour | White | | Customer Reviews | 4.7 4.7 out of 5 stars (394) 4.7 out of 5 stars | | Included Components | 9V back-up battery, Kidde KF20 mains-powered optical smoke alarm, Product manual, Screws and rawl plugs for secure fixing to ceiling | | Item Type Name | Mains Powered Optical Smoke Alarm | | Manufacturer | Kidde | | Manufacturer Warranty Description | 6 year warranty. | | Model Number | KEKF10-RA | | Number Of Items | 1 | | Operating Humidity | Natural | | Power Source | Mains Powered with Battery Backup | | Product Style | Classic | | Sensor Type | Ionization | | Unit Count | 1.0 count | ## Product Details - **Brand:** Kidde - **Style:** Classic - **Power source:** Mains Powered with Battery Backup - **Colour:** White - **Alarm:** Visual - **Sensor type:** Ionization - **Number of items:** 1 - **Manufacturer:** Kidde ## Images ![Replacement for Kidde KF10 Mains Powered Smoke Alarms - Image 1](https://m.media-amazon.com/images/I/51RriFdmMdL.jpg) ![Replacement for Kidde KF10 Mains Powered Smoke Alarms - Image 2](https://m.media-amazon.com/images/I/51+e29gCD9L.jpg) ![Replacement for Kidde KF10 Mains Powered Smoke Alarms - Image 3](https://m.media-amazon.com/images/I/51NrNrAoveL.jpg) ![Replacement for Kidde KF10 Mains Powered Smoke Alarms - Image 4](https://m.media-amazon.com/images/I/51ew1aU1lPL.jpg) ![Replacement for Kidde KF10 Mains Powered Smoke Alarms - Image 5](https://m.media-amazon.com/images/I/41TQQx6IciL.jpg) ## Questions & Answers **Q: Does this fit the old 120-1123C** A: Hi, I cannot remember exactly which old model I had, but there is a new base / mounting plate supplied in the box and a new different connector. If your old one is not too old, the old base plate and connector may be compatible. Either way it is not a difficult job and everything is provided. **Q: Would this be suitable for the Firex 120-1123c?** A: I'm afraid I don't know the different model types. If your old one is mains powered, and possibly linked to a second alarm, it should be okay. A new mounting plate and connector is supplied with the new device, (in the Box). **Q: Hi, i have the kidde firex model 4870 hardwired in my house and i need to replace them. do these alarms have the same wiring connection as the 4870?** A: You may need to change the connector that attaches to the mains power supply and connects to the alarm which is supplied in the box. **Q: Is this suitable for mounting near a bathroom (approx 3m from shower, but mounted on landing ceiling) or do I need an ionisation alarm** A: Yes this best for mounting near a bathroom, as this is an optical alarm, it will reduce the amount of nuisance alarms as opposed to an ionisation alarm. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good quality *by on Reviewed in the United Kingdom 18 July 2026* Straight swap easy to install loud noise ### ⭐⭐⭐⭐⭐ Excellent purchese *by on Reviewed in the United Kingdom 11 June 2026* Good value easy to fit ### ⭐⭐⭐⭐⭐ Very good for the money it's a lifesaver... *by on Reviewed in the United Kingdom 22 January 2026* It was great, a like for like swap with one I installed 6 years ago, the one I bought was the updated version and was a straight swap with the same wiring connections although I didn't need to swap the back plate I still did as the old one was yellowing and would off looked odd. It also comes with a Duracell battery so a good quality. ## Frequently Bought Together - Replacement for Kidde KF10 Mains Powered Smoke Alarms - Kidde Firex KF3 ( Mains/Battery Heat alarm ) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.kr/products/388701532-replacement-for-kidde-kf10-mains-powered-smoke-alarms](https://www.desertcart.kr/products/388701532-replacement-for-kidde-kf10-mains-powered-smoke-alarms) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-09-08*