Best Hardwired Smoke Alarms of 2025

Corey Phillips Avatar
Corey Phillips
Last Updated: 11 Feb 2025

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Hardwired Smoke Alarms are essential safety devices that detect smoke and alert occupants of a building to potential fires. These alarms are typically wired into a building's electrical system, providing continuous power without the need for battery replacement. They are designed to quickly detect smoke and emit a loud alarm to warn occupants of potential danger. Hardwired Smoke Alarms are an important investment for any home or building and can help to protect people and property from the devastating effects of fire.

At a Glance: Our Top Picks

Aico EI1529RC Hardwired Smoke Alarm with Remote Test Cover #TOP 1
Aico EI1529RC Hardwired Smoke Alarm with Remote Test
ftb score rating icon 9.8
Kidde Firex KF20 Mains Optical Smoke Alarm Cover #TOP 2
Kidde Firex KF20 Mains Optical Smoke Alarm
ftb score rating icon 9.7
Kidde Firex KF20 Mains Operated Smoke Alarm Cover #TOP 3
Kidde Firex KF20 Mains Operated Smoke Alarm
ftb score rating icon 9.5

Top 6 Hardwired Smoke Alarms

Aico EI1529RC Hardwired Smoke Alarm with Remote Test

EI1529RC
White
Aico EI1529RC Hardwired Smoke Alarm with Remote Test Cover
Aico EI1529RC Hardwired Smoke Alarm Remote Test, Hush & Locate Switch , White

The Aico EI1529RC Smoke Alarm offers essential features for your safety. With the test and hush alarms, you can easily check the functionality of your smoke alarm and silence false alarms, providing peace of mind. The ability to identify triggered alarms lets you locate the source of a problem quickly, ensuring a swift response. Additionally, you can wire this device anywhere in your system, giving you flexibility in installation. This smoke alarm is designed to enhance the safety of your home effortlessly.

What We Like
Easy testing and hush function
Identifies triggered alarms
Flexible wiring options

Kidde Firex KF20 Mains Optical Smoke Alarm

KF2 4973
White
Kidde Firex KF20 Mains Optical Smoke Alarm Cover
Twin Pack Kidde Firex KF20 Mains Powered Optical Smoke Alarm with 9V Back Up Batteries | KF2 | 4973

The Kidde Firex KF20 is a mains-powered optical smoke alarm that can interlink with up to 23 other Kidde alarms, ensuring that if one detects danger, all will sound an alert. This feature enhances safety across your home, providing peace of mind. It operates on mains power, with a 9V alkaline battery as a backup, ensuring reliability even during power outages. With reduced energy consumption, you benefit from lower running costs. The combined Test/Hush button allows you to easily test the alarm and silence false alarms, adding convenience to your safety measures.

What We Like
Interlinks with multiple alarms
Reliable mains and battery powered
Energy efficient operation
Easy testing and silencing
#TOP 3

Kidde Firex KF20 Mains Operated Smoke Alarm

White
Kidde Firex KF20 Mains Operated Smoke Alarm Cover
Kidde Firex KF20 Optical Smoke Alarm - Mains Operated with Battery Back Up

The Kidde KF20 Smoke Alarm is designed for your safety with its ability to interlink with up to 23 other Firex hard-wired alarms, ensuring comprehensive coverage throughout your home. The combined test/hush button allows you to easily test the alarm or silence it when needed, making maintenance straightforward. With auto reset functionality, you won't have to worry about manually resetting the alarm after it has been triggered. Additionally, the tamper-resistant locking device adds an extra layer of security, preventing unauthorised access and keeping your family safe.

What We Like
Interlinks with multiple alarms
Easy test and hush feature
Automatic reset function
Tamper-resistant design
#TOP 4

Andyssey GS517A Wired Smoke Alarm with Backup

Andyssey
GS517A
Andyssey GS517A Wired Smoke Alarm with Backup Cover
Andyssey GS517A Wired Smoke Alarm Mains powered, Interlinked Mains Smoke Detector 1 Year Replaceable Battery Back-up, Fire Alarm with Silence Button, EN 14604 Standard (2-PACK)

The Andyssey GS517A Smoke Alarm offers advanced photoelectric smoke detection, ensuring you are alerted to slow-smouldering fires that can produce thick smoke. Its reliable battery backup keeps you protected even during power failures, while the user-friendly design allows for easy installation and a convenient mute function. Additionally, the efficient interconnection feature lets you link up to 12 devices, providing comprehensive safety coverage throughout your home or office, ensuring you never miss a crucial alert.

What We Like
Advanced smoke detection technology
Reliable battery backup
User-friendly installation
Interconnects with multiple devices
#TOP 5

Aico EI146e Hard Wired Smoke Alarms

EI146e
White
Pack of 2
Aico EI146e Hard Wired Smoke Alarms Cover
Aico EI146e Set of 2 Mains Hard Wired Smoke Alarms with 9V Battery Back Up , White

The Aico EI146e Alarms are a reliable choice for home safety. These smoke alarms are hard-wired, meaning they are connected directly to your electrical system, providing you with continuous power. Additionally, they come with a 9V battery backup, ensuring they remain operational even during power outages. This feature gives you peace of mind, knowing that you are protected at all times. The sleek white design of the alarms also allows them to blend seamlessly into any room décor, enhancing both safety and aesthetics in your home.

What We Like
Reliable hard-wired connection
9V battery backup included
Seamless design for any décor
Continuous power for safety
#TOP 6

Jemay Wired Smoke Alarm with 10-Year Life

Jemay
GS518A
Wired 1 Pc
Jemay Wired Smoke Alarm with 10-Year Life Cover
Jemay Wired Smoke Alarm, Interlinked Fire Alarm with LED Indicator and Silence Button, 10-Year Life Smoke Detector with 9V Battery Backup, Mains-powered, Conforms to EN14604 Standard, 1 Pack

The Jemay Smoke Alarm offers reliable safety with its hardwired interconnected system, allowing you to connect up to 12 alarms for comprehensive coverage in your home. The 9V battery backup ensures that you remain protected even during power outages, giving you peace of mind. You can easily silence false alarms with a simple button press, reducing unnecessary stress. Additionally, the interconnection test feature streamlines maintenance, enabling you to test all alarms at once. This smoke detector is designed for your convenience and safety.

What We Like
Hardwired for reliability
9V battery backup included
Silence button for false alarms
Interconnection test for convenience
Buying Guide Image

Frequently Asked Questions (FAQs)

1. Do I need an electrician to replace hardwired smoke detectors?

They are hard-wired into our electrical system, but that doesn't mean you need an electrician to replace them. Modern hard-wired smoke detectors don't have wires in the back that need to be connected to loose wires in the ceiling. ... This connection makes it simple to replace bad or old smoke detectors with new ones.

2. Is a hardwired smoke detector better?

“Having a hardwired smoke alarm helps to increase the chance alarms have power and are ready to signal in case of a fire,” says Sharon Cooksey, the fire safety educator for Kidde. ... Winner: Hardwired smoke alarm is our choice for better safety, especially for those who tend to be forgetful about replacing batteries.

3. Is it code to hardwire smoke detectors?

Code requirements mandate that smoke alarms must be hard-wired directly into the home's electrical system and provided with a backup battery to keep the unit functioning during a power failure. ... When the batteries fail in these units, the entire alarm is replaced rather than just the battery.

4. Why does my hardwired smoke alarm keep beeping?

Most hard-wired smoke detectors include a 9-volt backup battery that's supposed to kick in if your home loses electricity. If that battery is running low, your detector alerts you with a high-pitched beep. ... Remove the old battery and replace it with a new one. Press the “test” button and listen for a beep.

Editor's Notes

During our hardwired smoke alarm research, we found 135 hardwired smoke alarm products and shortlisted 6 quality products. We collected and analyzed 19,475 customer reviews through our big data system to write the hardwired smoke alarms list. We found that most customers choose hardwired smoke alarms with an average price of £29.40.

The hardwired smoke alarms are available for purchase. We have researched hundreds of brands and picked the top brands of hardwired smoke alarms, including Aico, Kidde, Andyssey, Jemay. The seller of top 1 product has received honest feedback from 177 consumers with an average rating of 4.7.

Written by
Corey Phillips Avatar

Corey Philips is an electrician and lighting expert. He graduated from the University of Birmingham in 2012 with a Bachelor's degree in electrical and electronics engineering. Corey is a specialist contractor in lights. He sells and installs and recommends lights and lamp sheds, and other lights accessories. Aside from that, Corey is vast in installing and maintaining electrical appliances like air conditioners, water heaters, and the likes.