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First Alert SA320CN

By: Carl Laron on April 04, 2017

Bottom Line The First Alert SA320CN is a dual-sensor smoke detector that runs on batteries. It's easy to install, but can't be connected to other smoke alarms. It uses both ionization and photoelectric technology, and experts say you need both of those for detection of all types of common household fires.
  • Inexpensive
  • Easy installation
  • Will detect smoldering and blazing fires
  • Not interconnectable