First Alert SMICO100-AC Interconnect Smoke and CO Alarm - 3-Pack with Battery Backup

Smart safety that fits real homes

The SMICO100-AC Interconnect Hardwire 2-in-1 Smoke and Carbon Monoxide Alarm from First Alert blends precise sensing with a user‑friendly design. It uses First Alert's Precision Detection technology, designed to comply with new industry standards to reduce cooking nuisance alarms while providing early warnings when danger is present.

Interconnectivity matters in daily life. When one alarm detects danger, all compatible units on the circuit sound, creating a clear chorus that travels through hallways and living spaces. This synchronized alert helps you notice trouble sooner, even if you’re not in the same room.

Installation is straightforward thanks to the Quick Connect Plug. You can add or upgrade multiple units without rewiring, making it easier to build a reliable safety net throughout a home. A built‑in battery backup keeps protection active during power outages, so alarms remain vigilant when the lights go out.

Maintenance is simple with the Test/Silence button, which lets you verify operation and pause noisy alarms when appropriate. This 2‑in‑1 device reduces clutter by combining smoke and carbon monoxide detection in a single unit—handy for kitchens, bedrooms, and living areas alike.

Real‑world use and benefits you may notice

• Early warning helps you react calmly during smoky moments or potential CO concerns
• Coordinated alarms provide a clear evacuation cue across rooms
• Plug-and-play installation saves time and wiring effort
• Battery backup ensures warning signals remain during power outages
• Intuitive controls simplify routine testing and quieting when needed

Key specifications at a glance

• 2-in-1 smoke and CO detection
• Interconnected hardwire design
• Battery backup for continuous protection
• Precision Detection technology with standards alignment
• Test/Silence button for quick checks