First Alert SMI100-AC Smoke Alarm
Best reliable hardwired safety solution for modern residential homeowners.
This hardwired detector prioritizes inclusivity by pairing reliable, precision sensing with a high-visibility strobe light for those who need visual alerts. It trades a bit of installation complexity for a robust, interconnected safety net that keeps your entire home protected, even when the power goes out.
$117.00
at
Diglo
More SMI100 Series options
Who it's for
- Homeowners seeking a permanent and dependable fire safety solution
- Design-conscious residents who prefer discreet safety hardware
- Families living in multi-story houses requiring comprehensive coverage
Who should skip it
- Renters or DIY novices looking for a simple plug-and-play device
- Safety-focused buyers wanting dual-sensor protection for all fire types
- Cooks or homeowners with alarms located near kitchens and bathrooms
Performance breakdown
Accessibility Features
The integrated strobe light provides vital protection for the hearing impaired.
Installation Simplicity
Quick Connect wiring makes retrofitting existing systems straightforward and frustration-free.
Nuisance Alarm Prevention
Precision sensing technology effectively filters out common kitchen cooking steam.
System Integration
Hardwired interconnectivity ensures every alarm triggers simultaneously for whole-home safety.
Reliability Assurance
Battery backup provides essential peace of mind during unexpected power outages.
Build Durability
Solid construction backed by a decade-long warranty ensures long-term operational stability.
Key Specs
Detection Technology
Photoelectric
Power Source
Hardwired with 9V battery backup
Connectivity Type
Hardwired Interconnected
Interconnectivity Type
Hardwired Interconnect
Alert Type
Visual / Strobe, Siren / Beep
Alarm Type
Siren, Strobe Light
Battery Type
9V
Mounting Type
Ceiling Mount
Certification
UL 217 8th Edition
Warranty Length
10 years
Know before you buy
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Ask Metto anything about the First Alert SMI100-AC Smoke Alarm before you decide.