Description
Product Overview
The First Alert SC5 Hardwire Smart Smoke & Carbon Monoxide Alarm is a 2‑in‑1 safety solution that monitors both smoke and CO levels. Designed for hardwired installation, it features a reliable battery backup to keep you protected during power outages. Compatible with Google Nest Protect, the alarm integrates seamlessly into existing smart home ecosystems, delivering alerts directly to the First Alert app on your smartphone.
![[Product front view showing all components]](https://www.galvix.store/wp-content/uploads/2026/05/ebd81e400d3245d483f79e6727a1e8c1.jpg)
Usage
Ideal for families, renters, and homeowners, the SC5 fits any residential setting—bedrooms, living rooms, or near heating appliances. Once installed, it continuously monitors the air and instantly notifies you of danger, whether you’re at home or away. Its interconnect capability ensures that when one alarm sounds, all linked alarms activate, providing whole‑home coverage.
Why Choose Us
First Alert brings decades of fire safety expertise to every device. The SC5 combines hardwired reliability with modern smart features, offering peace of mind through rigorous testing, UL certification, and a dedicated support team ready to assist with installation and troubleshooting.
Key Features
- Dual detection of smoke and carbon monoxide for comprehensive safety
- Instant mobile alerts via the First Alert app keep you informed wherever you are
- Hardwired installation with battery backup ensures continuous operation
- Interconnects with other compatible alarms for whole‑home warning
- Dedicated customer support and easy‑to‑follow installation guide
FAQ
Can the SC5 be used with existing Nest Protect devices?
Yes, the SC5 is compatible with Google Nest Protect, allowing you to integrate it into your current smart home system for unified alerts.
What happens during a power outage?
The built‑in battery backup automatically takes over, providing uninterrupted monitoring and alarm functionality.
How do I receive alerts on my phone?
Download the First Alert app, connect the alarm during setup, and enable push notifications to receive real‑time alerts for smoke or CO detection.
Is professional installation required?
While hardwired installation is recommended for optimal performance, the device includes a detailed guide and can be installed by a qualified DIYer.
What is the warranty period?
The SC5 comes with a limited 2‑year warranty covering manufacturing defects and includes access to First Alert’s support resources.




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