---
product_id: 3760756
title: "Kidde i4618 Firex Hardwire Ionization Smoke Detector with Battery Backup (4 Pack)"
brand: "kidde"
price: "€ 35.06"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.hr/products/3760756-kidde-i4618-firex-hardwire-ionization-smoke-detector-with-battery-backup
store_origin: HR
region: Croatia
---

# Battery backup ensures 24/7 protection Interconnects multiple alarms seamlessly Red LED for instant alarm ID Kidde i4618 Firex Hardwire Ionization Smoke Detector with Battery Backup (4 Pack)

**Brand:** kidde
**Price:** € 35.06
**Availability:** ❌ Out of Stock

## Summary

> 🔥 Stay ahead of danger with smart, seamless fire protection! 🔥

## Quick Answers

- **What is this?** Kidde i4618 Firex Hardwire Ionization Smoke Detector with Battery Backup (4 Pack) by kidde
- **How much does it cost?** € 35.06 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/3760756-kidde-i4618-firex-hardwire-ionization-smoke-detector-with-battery-backup)

## 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

- • **Uninterrupted Safety:** 9V battery backup keeps you protected even during power outages.
- • **Whole-Home Protection:** Interconnects with other Firex smoke and heat alarms to alert your entire household simultaneously.
- • **Effortless Maintenance:** Front-loading battery door and power link tab make installation and battery changes a breeze.
- • **Smart False Alarm Control:** Silence nuisance alarms for up to 8 minutes without compromising safety.
- • **Instant Alarm Identification:** Red LED flashes until reset, pinpointing the exact alarm in your interconnected system.

## Overview

The Kidde i4618 Firex Hardwire Ionization Smoke Detector (4 Pack) combines reliable ionization sensing technology with a 120V hardwired power source and 9V battery backup. Designed for easy installation and maintenance, it features a red LED for quick alarm identification, false alarm control, and the ability to interconnect with other Firex alarms, ensuring comprehensive, whole-home fire safety.

## Description

The Firex i4618 Hardwire Smoke Alarm by Kidde is an ionization smoke alarm that operates on a 120V power source with 9V battery backup. The Firex i4618 smoke alarm offers many benefits for installers and homeowners, such as its easy-access slide load front battery door. This alarm is powered by your home's electricity and will interconnect with other smoke alarms in your home. Experts recommend interconnected alarms, because when one sounds, they all sound, providing an early warning against fire by dramatically increasing your ability to hear an alarm anywhere in your home, regardless of where the fire starts. This alarm uses ionization sensing technology. Ionization sensing alarms may detect invisible fire particles (associated with flaming fires) sooner than photoelectric alarms. Photoelectric sensing alarms may detect visible particles (associated with smoldering fires) sooner than ionization alarms. Kidde strongly recommends that both ionization and photoelectric smoke alarms be installed to help insure maximum detection of the various types of fire that can occur within the home The 120 volt Firex 4618 Pro Basic smoke detector has an ionization Sensor, quick connect power harness, is multi-station interconnectable, has a 5 year warranty, and is not available to members in Iowa, Oregon Or Vermont.

## Features

- Red LED flashes until reset for quick, clear identification of initiating smoke alarm in interconnected system
- Visible low battery indicator helps locate chirping unit
- Front loading battery door makes battery changing simple, power link tab makes installation faster
- False alarm control quiets unwanted alarms for up to 8 minutes
- Interconnects with other compatible Firex smoke alarms and heat alarms

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Kidde |
| Part Number | i4618-4 |
| Item Weight | 2.88 pounds |
| Package Dimensions | 8.78 x 6.93 x 6.69 inches |
| Is Discontinued By Manufacturer | No |
| Color | Original version |
| Power Source | Battery Powered |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |
| Battery Cell Type | Alkaline |

## Product Details

- **Brand:** Kidde
- **Power Source:** Battery Powered
- **Color:** Original version
- **Sensor Type:** Photoelectric, Ionization
- **Manufacturer:** Kidde

## Images

![Kidde i4618 Firex Hardwire Ionization Smoke Detector with Battery Backup (4 Pack) - Image 1](https://m.media-amazon.com/images/I/713Jx6wjizL.jpg)
![Kidde i4618 Firex Hardwire Ionization Smoke Detector with Battery Backup (4 Pack) - Image 2](https://m.media-amazon.com/images/I/717HSqkBbGL.jpg)
![Kidde i4618 Firex Hardwire Ionization Smoke Detector with Battery Backup (4 Pack) - Image 3](https://m.media-amazon.com/images/I/71ptgboJTzL.jpg)
![Kidde i4618 Firex Hardwire Ionization Smoke Detector with Battery Backup (4 Pack) - Image 4](https://m.media-amazon.com/images/I/712k1mf9FaL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easily replaced old hard-wired detectors, good value.
*by V***I on April 24, 2020*

These Firex smoke detectors installed fairly easily, even though my ancient original wired-in Kidde-brand detectors use a different base plate and wiring plug. The new base plate installs on standard electric outlet box screws, and the included pigtail plug can replace the old pigtail plug using the wire nuts that are probably already in the ceiling. I also bought conversion adapters between the old and new plug configurations, and that sped up replacement on some detectors, but probably wasn't worth the cost.For new construction, you could use a common wire to connect all your smoke detectors, so that they all go off if one detects smoke. An interesting feature, but I don't really need it. I tested the installed detector with some smoke, and it went off went it should have. I'm hoping that it won't go off as quickly as the last model, which activated every time we fried something on the stove.A good value, especially considering that it also includes a 9-volt backup battery. Hopefully, these detectors last as long as the old ones (20 years), even though I'm now learning that the ionization isotope used decays and is no longer sensitive after only 10 years!

### ⭐⭐⭐⭐⭐ Every ten years!
*by T***Z on August 2, 2021*

These have replaced old Firex Models 120-1072B.( Hard wired). The old units were going off in the Hottest part of the day, But usually only 2 -3 units. The House temp was set at 75. But they go off the same time every day. When they started going off at night I Though they were probably used up and time for replacements. So decided on these since it was a 4 pack and We'll need 7. And I seen other reviews that people used for the same old model.The ones I received were dated Feb 2021 (now July 21) They came with a battery, and hard wire to connect the new smoke detector to the house wiring. Not that much of a problem once you find which breaker it is to turn the power off. Just 3 wire connections and new wires matched my old wire colors. Installed, pulled battery tabs and powered up(120v). Blinked red twice, then went green. Green is on to show you have 120 volts. Push the test button and all alarms went off.I like the fact it does not have to be removed to refresh the battery. Battery door is accessible when installed. It also has a Low Battery "Chirp". You can push the test/ Hush button and it will silence the chirp for13 hours. It has a list of batteries you can use in the unit, however they say NOT to use Lithium Batteries.Will see how these work and if okay, will order more to replace the rest of my old units.

### ⭐⭐⭐⭐⭐ Easy to install!!
*by U***R on November 8, 2019*

All the parts were there for making the wiring connections from the older models to the newer, making the installation a breeze! Took only a couple of minutes for each one, taking down the old detector and replacing the new. Holes were in the right place for the new one to pop right back up where the old came from. The adapter wiring harness was there, didn't need to do any electrical work or turn off power, the connectors went right in and the harness fit in the electrical box. Works great!

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---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-15*