Kidde Hardwire Smoke Alarm

Last updated: October 14, 2020


This user-friendly smoke detector will interconnect with other Firex smoke detectors, creating a safety network throughout your home. Although this is a hardwired smoke alarm, it is easy to install. You can also change the backup battery without removing the device. In addition, its low price makes it affordable for any budget.

We looked at the top Smoke Detectors and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Smoke Detector you should buy.

Product Details

Key Takeaway: A hardwired smoke alarm that's easy to install and affordable.

In our analysis of 39 expert reviews, the Kidde Hardwire Smoke Alarm placed 3rd when we looked at the top 7 products in the category. For the full ranking, see below.

From The Manufacturer

The Kidde i4618 is an AC/DC powered, ionization smoke alarm that operates on a 120V power source with 9V battery backup. 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.

Expert Reviews


What reviewers liked

Customers report it’s very easy to install.
The Kidde i4618AC interconnects with other Firex smoke alarms, enabling you to create a network of smoke detection throughout your home.
- Tuck
This no-frills, user-friendly model by Kidde is a hardwired alarm that uses ionization sensors to detect smoke and fire.
A reviewer on the site Tuck recommends the Kidde Hardwire Smoke Alarm because it can connect with other FireX alarms and the 9V battery is easy to change out without taking the unit down.
You can protect your home for less than $15 with the Kidde i4618 Firex smoke alarm.
The flashing light makes it easy to find out what alarm was triggered in an interconnected system.
Owners rent the Kidde i4618 for easy installation and ease of use, including a silence feature that can quickly mute an alarm if needed.
It comes with an indicator light to tell warn you if the battery power is low.
The front loading battery door makes changing the batteries fast and efficient.
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What reviewers didn't like

Doesn’t offer any advanced features or Smart Home network connectivity.
The downsides to this alarm are its warranty and ionization-only functionality.
- Tuck
However, the reviewer didn't like that you still need to have photoelectric alarms, and the warranty is relatively short at five years.
While this provides early detection for fire particles, which is useful in a flaming blaze, it doesn’t provide accurate detection for smoldering fires.
No low battery indicator light, chirping alert only.
While most users are satisfied with the performance, some say they have intermittent tweets or false alarms.
The price has recently risen slightly.
View our Smoke Detector buying guide for in-depth advice and recommendations.

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