Hardwired Smoke and Carbon Monoxide Detector with Battery Backup | 120V AC Interconnectable Alarm

Protect your home and loved ones with this Hardwired Smoke and Carbon Monoxide Detector. Engineered for safety and reliability, this 2-in-1 alarm features advanced smoke and CO detection, a 120V AC hardwired connection with battery backup for continuous protection—even during power outages. Easily interconnectable with other compatible alarms, it ensures your entire home is covered.

This combo alarm includes a convenient silence button, latching indicator to identify which unit triggered the alert, and easy installation for new or existing systems. Ideal for bedrooms, hallways, and living areas.

✅ Dual Protection: Smoke + CO Detection
✅ 120V AC with Battery Backup
✅ Interconnects with Other Alarms
✅ Silence & Latching Features
✅ Reliable, Easy to Install, Code Compliant

Peace of mind starts here—because every second counts.

New Model: Replaces SC9120B

Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup

• Direct wire-in with 9V battery backup. Hardwired with battery backup for protection during power outages.
• Perfect mount for easy installation. Mounting bracket keeps the alarm secure over a wide rotation range for ideal alignment.
• Latching alarm indicator, visually identifies unit that initiated alarm or low battery.
• Smart Interconnect, interconnects with most First Alert and BRK hardwired alarms. When one alarm sounds, all compatible* alarms sound (up to 12 smoke alarms and 6 other CO/heat alarms).
• Test/Silence Button, temporarily silence or test the alarm with one-touch easy access button.
• Dust cover, keeps the alarm clean during construction.