10 Best Interconnected Smoke Alarms 2025 in the United States

This DFGJLVF interconnected smoke and carbon monoxide alarm pack is a solid choice for those wanting comprehensive home safety without complicated wiring. It uses a wireless interconnect system, so when one alarm detects danger, all six alarms sound together, covering a large area up to 980 feet. Powered by sealed 10-year lithium batteries, it eliminates the hassle of frequent replacements or electrical installation, making it easy to set up and maintain.

The dual sensors—photoelectric for smoke and electrochemical for carbon monoxide—offer reliable detection of both common threats in one device, which is a real convenience and safety booster. A smart LCD screen displays carbon monoxide levels and battery status clearly, with LED lights providing quick alerts for smoke or CO. The device meets UL safety standards, ensuring it meets basic performance expectations. Its 6-pack format is great for larger homes or multi-room coverage. The package includes mounting hardware, so installation is straightforward.

While it’s wireless and easy to install, the user should ensure good signal strength throughout the home for the alarms to interconnect properly. This alarm system suits homeowners wanting long-lasting, low-maintenance protection with reliable whole-home alerting and smart features without the need for professional wiring.

The First Alert SMICO100-AC is a 3-pack of smoke and carbon monoxide alarms designed to offer reliable, interconnected home safety. One of its strong points is the interconnectivity feature: when one alarm detects danger, all the alarms sound, providing a quick alert throughout your home. It uses ionization sensors, which are good at detecting fast-flaming fires, and the Precision Detection technology helps reduce false alarms from cooking, which many users will appreciate.

Powered by corded electric with a battery backup, these alarms stay active even during power outages, adding peace of mind. Installation is made simpler with the Quick Connect Plug, so you don't need to do complex rewiring, making it a good choice for users who want straightforward setup. The test/silence button also helps with easy maintenance by letting you check the alarm’s function or silence it without hassle.

A limitation is that ionization sensors are less sensitive to slow-smoldering fires compared to photoelectric sensors, so it might miss certain types of smoke. The alarms don’t include advanced smart features like smartphone alerts or voice control, which some newer models offer. They also require regular battery replacement for the backup function, so some upkeep is necessary. This pack suits homeowners looking for dependable, easy-to-install alarms with solid interconnectivity and dual smoke and CO detection, without needing extra smart capabilities.

The Kidde Hardwired Smoke & Carbon Monoxide Detector 3-pack is a solid choice for those looking to protect their home with interconnected alarms. It combines smoke and carbon monoxide detection into one device, which can save money and space. The alarms are hardwired with a backup of 2 AA batteries, so they stay functional even during power outages. It uses photoelectric and electrochemical sensors, providing reliable detection and reducing false alarms caused by cooking. The alarm volume at 85 decibels is loud enough to alert you effectively.

These units interconnect, meaning if one alarm detects danger, all alarms in the home will sound, enhancing safety. Installation is fairly straightforward if you have existing wiring; however, it might be a bit challenging for beginners without electrical experience. The test/hush button allows easy maintenance, and the 10-year limited warranty offers peace of mind.

Although it doesn’t include advanced smart features like mobile alerts, its dependable performance and compliance with the latest safety standards make it a practical option for families wanting a trustworthy, interlinked smoke and CO alarm system.