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1046830 Battery-Operated Smoke Alarm - 2 Pack

First Alert 1046830


  • Simple Battery-Operation
  • Convenient Test Feature

Quick Specs

  • Type: Smoke Detectors

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Simple Battery-Operation Add reliable protection in minutes. The First Alert SMI100 Battery-Operated Smoke Alarm is easy to install - no wiring required. The front access battery compartment also makes for easy battery replacements and a low battery warning will advise when it's time to replace. Discourage unwanted removal of the battery or alarm using the optional locking features.

Convenient Test Feature Use the simple test/silence button on the front of the smoke alarm to check that it is operating properly and silence false alarms. An end-of-life warning will alert you when it s time to replace because alarms don't last forever. See users manual for information on how and when to test and replace alarms.


  • Simple Battery-Operation
  • Convenient Test Feature
Model SMI100
Level of Protection Standard
Product Type Smoke Alarm
Sensor Type Ionization
Sensor Information Smoke particles of varying number and size are produced in all fires. For maximum protection, use both ionization and photoelectric sensing technologies. Ionization alarms are generally more sensitive to fast flaming fires and photoelectric alarms are generally more sensitive to smoldering fires.
Power Source Battery Operated
Battery Type 9V Alkaline
Number of Batteries 1
Battery Replaceable Yes
Product Height 1.9 in
Product Length 5.4 in
Product Width 5.4 in
Product Weight 0.7 lb
UPC Number 029054022400
Warranty 10 Years Limited

Quick Specs

  • Appearance

  • Type: Smoke Detectors

View Resource: User's Manual: SMI100 Battery-Operated Smoke Alarm (English)

View Resource: User's Manual: SMI100 Battery-Operated Smoke Alarm (Spanish)

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Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Extended warranties are usually very inexpensive and can save you thousands in the future. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.