Pros

  • 1ear Battery Backup ensures long-lasting reliability without frequent replacements.
  • Hardwired installation for stable and consistent power supply.
  • Interconnectable design allows multiple alarms to communicate with each other, enhancing safety throughout the home.

Cons

  • Lack of additional features such as carbon monoxide detection, which is found in some other models.
  • Some users found the alarm to be overly sensitive, leading to false alarms.

Bottom Line

The First Alert SMI105-AC Hardwire Smoke Alarm with a 10-Year Battery Backup is a solid choice for those seeking a reliable and long-term smoke detection solution. Its interconnectable design allows for enhanced safety coverage in your home. However, if you're looking for a device with additional features such as carbon monoxide detection, you may want to explore other models.

Lowest at any Popular Retailer
$26.99 at Amazon
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