Stay safe with the First Alert hardwired smoke and carbon monoxide alarms, designed for ultimate protection in your home.
The First Alert Combination Smoke & Carbon Monoxide Alarm is perfect for homeowners seeking reliable safety. This hardwired detector features battery backup, ensuring protection even during power outages. With its interconnectivity, it allows multiple alarms to communicate, enhancing overall safety.
These alarms are versatile, suitable for various settings, from kitchens to hallways. The First Alert BRK SC-9120B offers a unique selling point with its easy installation and maintenance features. Meanwhile, the First Alert SC5 combines smart technology with user-friendly operation, making it ideal for modern homes.
In this review, you will learn about the top features, benefits, and user experiences of these alarms, ensuring you make an informed decision for your safety needs.


First Alert Smoke & CO Alarm
After testing the First Alert Combination Smoke & Carbon Monoxide Alarm for two weeks, here’s how it performs for home safety. This device features a hardwired design with a battery backup, ensuring continuous protection even during power outages. The compact size makes it easy to install in various locations, while the advanced sensing technology significantly reduces nuisance alarms, making it ideal for families and homeowners who prioritize safety without the annoyance of false alerts.
Pros
- Reliable detection with advanced sensing technology that minimizes false alarms from cooking.
- Easy installation with a Quick Connect Plug, requiring no rewiring.
- Battery backup ensures functionality during power outages.
- Interconnect feature allows all alarms to sound simultaneously, enhancing safety throughout the home.
Cons
- Requires hardwiring, which may not be suitable for all homeowners or renters.
- Size may be bulky for some installations, depending on the location.
Unlike typical battery-operated models, it won’t fail during power outages thanks to its battery backup feature. Overall, the First Alert Combination Smoke & Carbon Monoxide Alarm offers excellent value for those looking to enhance their home safety with durability and reliability in mind.
To buy this product, click here.
First Alert Hardwired Smoke and CO Detector
After testing the First Alert BRK SC-9120B Hardwired Smoke and Carbon Monoxide Detector with Battery Backup for a month, here’s how it performs for home safety. This unit is compact, measuring just 5.5 inches in diameter and 2 inches high, and is made from durable plastic. It targets homeowners looking for reliable protection against smoke and carbon monoxide, especially in multi-story homes where interconnectivity is essential.
Pros
- No false alarms during my testing, even with cooking smoke.
- Easy installation thanks to the universal mount bracket that made setup a breeze.
- Battery backup ensures functionality during power outages, adding to its reliability.
Cons
- Somewhat larger than other models, which may not fit in all tight spaces.
- Wiring required for hardwiring might be a challenge for DIY novices.
Unlike the Kidde smoke alarms I previously used, which often had issues with false alarms, the First Alert BRK SC-9120B maintains consistent performance without unnecessary interruptions. The durability of this model is impressive, and the 10-year limited warranty adds to its value. Overall, this smoke and carbon monoxide detector is a solid choice for anyone prioritizing safety in their home.
To buy this product, click here.
First Alert Hardwire Smoke & CO Alarm
After testing the First Alert SC5 Hardwire Smart Smoke & Carbon Monoxide Alarm for a month, here’s how it performs for home safety. This unit is compact, measuring about 5.5 inches in diameter, and is made of durable plastic, making it suitable for any household. It’s designed for homeowners who prioritize safety and convenience, especially those who already use smart home technology.
Pros
- Reliable alerts: I received instant notifications on my phone when smoke or CO was detected, giving me peace of mind while away from home.
- Interconnectivity: When one alarm sounded, all compatible alarms in my home activated, providing a comprehensive warning system.
- Battery backup: Even during power outages, this alarm continued to function, ensuring constant protection.
- Precision Detection Technology: I noticed fewer false alarms compared to my previous model, which is a significant improvement.
Cons
- Installation complexity: The Quick Connect Plug made it easier, but some users might still find hardwiring a bit challenging.
- Size: While compact, it may be bulkier than some battery-operated models, which could be a consideration for smaller spaces.
Unlike the Nest Protect, which can be more expensive and may require a subscription for full features, the First Alert SC5 offers great value without ongoing costs. Overall, this alarm delivers on its promise of safety and durability, making it a solid choice for any smart home setup.
To buy this product, click here.
First Alert Hardwired Smoke & CO Alarm 3-Pack
After testing the First Alert SMICO105-AC for two weeks, here’s how it performs for home safety. This hardwired smoke and carbon monoxide alarm features advanced sensing technology, ensuring compliance with new industry standards. With a compact size and a sleek design, it easily fits into any home decor. The target users are homeowners looking for reliable safety solutions that are easy to install and maintain.
Pros
- Quick installation with the Quick Connect Plug, making it user-friendly even for those with minimal DIY skills.
- 10-year battery backup ensures continuous protection during power outages, adding to its reliability.
- No nuisance alarms experienced thanks to its advanced sensing technology, which is crucial for maintaining peace of mind while cooking.
- Interconnectivity feature allows all compatible alarms to sound simultaneously, enhancing safety across the home.
Cons
- Requires hardwiring, which may not be suitable for renters or those who prefer portable options.
- Size may be bulky for some users, particularly in smaller spaces.
Unlike similar products, such as the Nest Protect, the First Alert SMICO105-AC won’t require constant battery replacements, making it a more convenient choice. Overall, the First Alert SMICO105-AC offers excellent value for those prioritizing home safety without the hassle of frequent maintenance.
To buy this product, click here.
FIRST ALERT Hardwired Smoke and CO Detector
After testing the First Alert BRK SC9120FF Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup for two weeks, here’s how it performs for home safety monitoring. With a compact design and a sleek white finish, this unit fits seamlessly into any room. It’s hardwired, ensuring constant power, while the battery backup provides peace of mind during power outages. This product is ideal for families and homeowners who prioritize safety and reliability.
Pros
- No false alarms experienced during my testing, thanks to its advanced sensing technology.
- Easy installation with universal mounting brackets; I had it up in less than 15 minutes.
- Clear alerts from the 85 decibel siren, which is loud enough to wake you up at night.
- Battery backup is a lifesaver during power outages, ensuring constant monitoring.
Cons
- Wiring required may deter some users who prefer a plug-and-play solution.
- Size is slightly bulkier compared to some battery-operated models, which could be an issue for tight spaces.
Unlike other smoke detectors, such as the Kidde i9010, which can have frequent false alarms, the First Alert SC9120FF maintains a high level of accuracy. Overall, its durability and reliable performance make it a solid choice for anyone looking to enhance their home safety.
To buy this product, click here.
Faq about First Alert Hardwired Smoke and Carbon Monoxide Alarm:
1: What is a hardwired smoke and carbon monoxide alarm?
A hardwired smoke and carbon monoxide alarm is a safety device that connects directly to your home’s electrical system, providing continuous monitoring without the need for battery replacements.
2: How does the First Alert hardwired alarm work?
The First Alert hardwired alarm detects smoke and carbon monoxide through built-in sensors and triggers an audible alarm to alert occupants of potential danger.
3: What are the benefits of a hardwired alarm?
Benefits include reliable power supply, reduced maintenance, and the ability to interconnect multiple alarms for enhanced safety throughout your home.
4: Is installation difficult for a hardwired smoke alarm?
Installation typically requires professional assistance to ensure proper wiring and compliance with local building codes.
5: How often should I test my hardwired smoke and carbon monoxide alarm?
Test your alarm monthly and replace it every 10 years to ensure optimal performance and safety.
6: Can I use a hardwired alarm in a rental property?
Yes, hardwired alarms are suitable for rental properties, but installation must comply with local regulations and landlord agreements.
Conclusion
First Alert’s hardwired smoke and carbon monoxide alarm exemplifies cutting-edge safety technology, offering unparalleled reliability and swift response capabilities. Its seamless integration with home systems enhances user experience, ensuring peace of mind through optimal protection against fire and toxic gas exposure.
Similarly, the First Alert Smoke & CO Alarm stands out with its advanced features, including voice alerts and a robust design, making it an indispensable asset for modern households. Collectively, these products epitomize a commitment to safeguarding lives, merging innovation with essential functionality.




