First Alert SMI100-AC Hardwire Interconnect Smoke Alarm with Battery Backup – 6-Pack

Overview

The First Alert SMI100-AC is a hardwired smoke alarm designed to join a growing safety network in your home. It blends precise sensing with practical warnings, aiming to minimize nuisance alerts while delivering early detection when it matters most. The unit is built to install over existing wiring without the need for complex rewiring, keeping a clean look on ceilings and walls.

Key benefits at a glance

• Precision Detection technology provides timely warnings while reducing false alarms from cooking or steam
• Interconnect capability ensures all compatible alarms sound together for a coordinated response
• Battery backup maintains protection during power outages so you stay covered
• Visual indicator helps identify which unit initiated the alarm for quicker response
• Quick Connect Plug simplifies installation with no rewiring required

Real life use cases

• During meal prep, a balanced alert helps you ventilate without disturbing the entire home
• Sleep on a multi-story floor plan? Interconnected alarms can wake occupants across rooms
• Power flickers or outages? The backup battery keeps monitoring active so you have continued protection

Easy installation and future-ready safety

Designed to replace existing alarms without rewiring, the SMI100-AC offers a straightforward upgrade path. Its interconnect capability supports a scalable safety network across the home as your setup evolves.

What’s included and quick setup tips

• One SMI100-AC smoke alarm unit
• Quick Connect Plug for easy hookup
• Interconnect-ready design for scalable protection
• Battery backup for outage protection

Quality and compliance

Built to meet modern safety standards, the SMI100-AC combines reliable electronics with a compact, ceiling-friendly design. It provides clear status indicators during testing and routine maintenance, helping you stay informed without overhauling your space.