First Alert Battery Smoke Alarm SMI100 — Precision Detection to Reduce Cooking False Alarms, Front-Access Battery

The First Alert SMI100 Battery Smoke Alarm is a battery-powered residential smoke detector using Precision Detection technology to lower cooking false alarms and provide dependable early warning of a fire.

This compact, battery-operated smoke alarm from First Alert is designed for simple installation and minimal upkeep while meeting the latest industry detection standards. It combines an easy front-access battery compartment with a test/silence button and an end-of-life alert so you can install it quickly and know when replacement is needed. The SMI100 focuses on reducing nuisance activations from everyday cooking while still detecting dangerous smoke conditions.

How does the SMI100 minimize false alarms from cooking?

The alarm’s Precision Detection sensing system is calibrated to distinguish common cooking aerosols from hazardous smoke, cutting down on unnecessary alerts. This helps families avoid repeatedly silencing an alarm and keeps the device active when it matters most.

• Sensing algorithm tuned to recognize cooking particle signatures
• Reduces nuisance activations without compromising smoke detection
• Maintains responsiveness to heavier, fast-moving smoke

How easy is installation and battery maintenance?

Because the SMI100 is battery operated, you can mount it without rewiring, making it suitable for retrofit or rental locations. The front-access battery door lets you swap batteries without removing the unit from the ceiling or wall.

• Battery-powered for tool-free placement where wiring isn’t available
• Front-access compartment for quick battery changes
• Includes test/silence button for regular checks and temporary hush

What end-of-life and testing features does it include?

The SMI100 notifies you when the unit has reached the end of its serviceable life so you can replace it on schedule. Built-in test and silence controls make routine maintenance straightforward and ensure the alarm remains functional.

• Audible end-of-life warning to indicate replacement time
• Test/silence button for instant verification and temporary hush
• Simple visual and audible cues for status checks

Where should I install this smoke alarm in my home?

Place the SMI100 on ceilings or high on walls in sleep areas, hallways, living rooms and kitchens (outside immediate cooking surfaces) to balance early detection with reduced cooking nuisances. For full household protection, combine with additional alarms following local codes.

• Install on ceilings or high walls in bedrooms and corridors
• Position outside kitchens and bathrooms to avoid steam interference
• Use multiple units for multi-level homes to meet safety guidelines

Who is this for: The First Alert SMI100 is designed for homeowners, renters and landlords who want a reliable, easy-to-install smoke alarm with improved nuisance-resistance for kitchens and everyday living areas. It suits anyone needing a no-wires-required detector with straightforward battery access, clear test/silence controls and an audible end-of-life reminder. Ideal for retrofits, rental units, vacation homes and rooms where running hardwired lines isn’t feasible, the SMI100 provides a balance of convenience and up-to-date sensing performance.