First Alert SMI100 Battery-Operated Smoke Alarm | Precision Detection & Test/Silence

A reliable, easy-to-install smoke alarm for everyday safety

The First Alert SMI100 is a battery-powered smoke alarm designed for flexible placement and straightforward upkeep. It combines advanced sensing with a user-friendly design, aiming to balance proactive alerts with fewer false alarms in busy homes.

With Precision Detection technology, this unit aligns with current industry standards to help cut down on cooking-related nuisance alarms while still delivering early warnings when a real fire event occurs. The battery-operated build means no wiring is required, so setup is quick and maintenance remains simple as needs change across rooms or living spaces.

A front-access battery compartment lets you swap batteries quickly from the outer edge of the device, reducing downtime and making routine replacements more convenient. When the battery nears the end of its life, an explicit end-of-life warning signals that it’s time to plan replacement, so you stay prepared. A dedicated test/silence button supports regular checks and temporary silencing during minor nuisance beeps, helping you confirm proper function without unnecessary disruption.

Key benefits

• Precision Detection advanced sensing technology helps minimize cooking nuisance alarms while delivering early warnings for real threats.
• Battery-powered design enables easy installation and flexible placement without wiring.
• Front-access battery compartment supports quick, hassle-free battery replacements.
• End-of-life warning notifies you when replacement is due, supporting ongoing protection.
• Test/silence button allows simple checks and temporary quieting during nuisance alarms.

Real-world use scenarios

• Near kitchens or dining areas to reduce nuisance alerts while maintaining vital alert capability.
• In bedrooms, living rooms, or hallways where easy access and maintenance matter.
• In rentals or spaces without wired detectors, offering flexible placement without rewiring.
• During routine upkeep, where a front-access battery design speeds replacement and testing.

Whether you’re outfitting a new apartment, upgrading a current setup, or adding a reliable standby detector, the SMI100 provides a practical, maintenance-friendly option that keeps safety top of mind without demanding extensive installation work.