---
product_id: 56429092
title: "New Kidde FireX KF20 Mains Powered Optical Smoke Alarm Fire Detector with 9V Battery Backup"
brand: "ixium"
price: "47804CFA"
currency: XOF
in_stock: true
reviews_count: 8
category: "I Xium"
url: https://www.desertcart.sn/products/56429092-new-kidde-firex-kf20-mains-powered-optical-smoke-alarm-fire
store_origin: SN
region: Senegal
---

# 230V mains powered for constant protection 9V battery backup ensures uninterrupted safety Interlink up to multiple alarms for whole-home alert New Kidde FireX KF20 Mains Powered Optical Smoke Alarm Fire Detector with 9V Battery Backup

**Brand:** ixium
**Price:** 47804CFA
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay ahead of danger with seamless, smart fire detection ⚡

## Quick Answers

- **What is this?** New Kidde FireX KF20 Mains Powered Optical Smoke Alarm Fire Detector with 9V Battery Backup by ixium
- **How much does it cost?** 47804CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/56429092-new-kidde-firex-kf20-mains-powered-optical-smoke-alarm-fire)

## Best For

- ixium enthusiasts

## Why This Product

- Trusted ixium brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **User-Friendly Control:** Combined Test/Hush button lets you easily silence false alarms and verify functionality.
- • **Clear Status Indicators:** Built-in LED lights provide instant visual confirmation of alarm status at a glance.
- • **Smart Interlinked Alerts:** Connect multiple alarms so if one detects fire, all sound—maximizing your home’s safety network.
- • **Trusted Safety Certification:** BSI and CE certified for guaranteed reliability and peace of mind.
- • **Uninterrupted Fire Protection:** 230V mains power with 9V battery backup keeps you safe even during outages.

## Overview

The Kidde FireX KF20 is a mains-powered optical smoke alarm featuring a 9V battery backup for continuous protection. It interlinks with other FireX alarms to trigger a whole-home alert, includes a combined test/hush button for easy maintenance, and is BSI and CE certified, ensuring trusted, professional-grade fire safety for your home.

## Description

Protect your home from fires with this 230V mains smoke alarm from Kidde. It uses an ionisation sensor to detect fast-flaming fires and has a built in 9V Alkaline battery as back-up. To test the alarm there is a test/Hush button that allows regular testing of alarm function and can be used to temporarily silence nuisance alarms. There is also an indicator on the alarm to show the alarms current status. If you have more than one of Kiddes FireX mains alarm range these can be interlinked; so if a fire is detected in one room all alarms will sound. This smoke alarm has approval from the BSI (British Standards Institution) and is CE tested and certified.About Kidde Founded by Walter Kidde in 1917, a pioneer in early smoke detection and fire suppression, Kidde is the world’s largest manufacturer of fire safety products. Each day, they work to expand their legacy of innovation, providing advanced solutions to protect people and property from fire and related hazards.

Review: Perfect replacement for FireX FADC 230 - Moved house. Had 2 old expired FireX FADC 230’s. Perfect replacement. Simply disconnected plugs and plugged in new devices, even fitted the original base plate. Saved me the cost of getting an electrician out. Great value arrived fast, very happy.
Review: It was a straight easy fit from old to new! - Took 4 mins to install, connections are the same! Good price! Loved it! Works a treat!

## Features

- 230V Mains Powered Alarm with Battery Backup
- Built in Optical Sensor and LED Indicators
- Interlinks with other FireX Wired Alarms - This means, when all alarms are connected to mains, if one alarm is triggered they will sound
- Combined Test/Hush Button - For silencing nuisance alarms
- BSI and CE Certified

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01B67P0KA |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 7,107 in DIY & Tools ( See Top 100 in DIY & Tools ) 44 in Smoke Alarms |
| Colour | White |
| Customer Reviews | 4.6 4.6 out of 5 stars (424) |
| Date First Available | 28 Jan. 2016 |
| Item Weight | 320 g |
| Manufacturer | iXium |
| Manufacturer reference | 5055633354711 |
| Part Number | 5055633354711 |
| Power Source | Battery Powered |
| Product Dimensions | 5.5 x 13.5 x 13.5 cm; 320 g |
| Style | Classic |

## Product Details

- **Alarm:** Visual
- **Brand:** iXium
- **Colour:** White
- **Item weight:** 0.32 Kilograms
- **Manufacturer:** iXium
- **Power source:** Battery Powered
- **Product dimensions:** 5.5D x 13.5W x 13.5H centimetres
- **Sensor type:** ionisation,optical
- **Style:** Classic

## Images

![New Kidde FireX KF20 Mains Powered Optical Smoke Alarm Fire Detector with 9V Battery Backup - Image 1](https://m.media-amazon.com/images/I/71iRBt2Xn2L.jpg)

## Questions & Answers

**Q: Ionisation or optical?  The title says optical but the description says ionisation!**
A: Must have been a cut and paste job... KF20 is optical and that was what I received. :-)

**Q: Can this alarm be connected with the KF10 already installed**
A: Yes it can, you will need to do this be running wires to each alarm you wish to interconnect or you will need the wireless template called the RF-SFTP for each alarm then will be interconnected

**Q: Please could you tell me the diameter of the mounting plate as it will be replacing old alarms. Thanks**
A: No sorry as I just swapped it with the same one

**Q: What is the diameter of this alarm ?**
A: The KF20 dimensions are:
Alarm Dimensions 127 x 127 x 39mm
Bracket Dimensions 133 x 133 x 6mm

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect replacement for FireX FADC 230
*by M***. on 16 January 2026*

Moved house. Had 2 old expired FireX FADC 230’s. Perfect replacement. Simply disconnected plugs and plugged in new devices, even fitted the original base plate. Saved me the cost of getting an electrician out. Great value arrived fast, very happy.

### ⭐⭐⭐⭐⭐ It was a straight easy fit from old to new!
*by A***R on 7 August 2024*

Took 4 mins to install, connections are the same! Good price! Loved it! Works a treat!

### ⭐⭐⭐⭐⭐ ideal replacement
*by M***S on 21 October 2025*

Direct plug in replacement for the obsolete mains / battery back-up Firex FADC230. No need for any adaptor or rewiring. Haven't smoke tested it yet, but the test button proves it has a loud, piercing alarm. A good quality product. Same size as the defunct unit, battery life yet to be tested. Battery is now located on the underside which might make replacement easier than the fiddly door on the FADC230.

## Frequently Bought Together

- New Kidde FireX KF20 Mains Powered Optical Smoke Alarm Fire Detector with 9V Battery Backup
- Kidde Firex KF3 ( Mains/Battery Heat alarm )

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-02-23*