First Alert 1039791/SA300CN3 Smoke Alarm, 9 Volts

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The alarm also contains an optional pin to lock the battery and unit in place for tamper resistance. It can be mounted on either the ceiling or the wall & can be used in mobile homes and RVs.
SKU: 43049741
MFG: 1039791/SA300CN3
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  • Color: White
  • Type: Battery Operated
  • Voltage: 9 Volts
  • Sensor Type: Ionization
  • Sound Level: 85 dB
  • Smoke alarm with test button
  • Battery operated
  • Features convenient test button
  • A blinking power indicator on the unit confirms that it is receiving power
  • Also includes side battery drawer and missing battery guard
  • Low battery warning and tamper resistant
  • 9 V Battery included
  • Locking features lock battery drawer and alarm to base
  • UL Listed


  • Mute Button
  • Side Battery Drawer
  • Missing Battery Guard


MFR: 1039791/SA300CN3
SKU: 43049741
UPC: 029054018687
Brand: First Alert
Weight: 2.0 lb