First Alert SCO403 Carbon Monoxide and Smoke Detector, Combo Pack

  • CO400 Battery Operated Carbon Monoxide Alarm Features:Modern, compact design with no installation required.
  • Electrochemical sensor - the most accurate technology available.
  • Simple to use silence/test button; low battery warning; end-of-life timer.
  • Loud 85-decibel alarm.
  • Convenient front battery access for easy replacement.
  • Operates on 2-AA Batteries. (included)
  • 5-Year Limited Warranty.
  • SA303 Battery Operated Smoke Alarm Features:
  • Ionization smoke sensing technology.
  • Single button silence/test feature tests sensor and horn and silences unwanted alarms for up to 15 minutes.
  • Loud 85-decibel alarm.
  • Swing-out front access battery drawer for easy battery replacement without dismounting unit.
  • Operates on 1-9V Battery. (included)
  • 10-Year Limited Warranty.
  • Additional Details
  • Brand: First Alert