Best Hardwired Smoke Alarms of 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
Top 6 Hardwired Smoke Alarms
Aico EI1529RC Hardwired Smoke Alarm with Remote Test
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.
Kidde Firex KF20 Mains Optical Smoke Alarm
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.
Kidde Firex KF20 Mains Operated Smoke Alarm
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.
Andyssey GS517A Wired Smoke Alarm with Backup
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.
Aico EI146e Hard Wired Smoke Alarms
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.
Jemay Wired Smoke Alarm with 10-Year Life
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.
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.
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.

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.