First Alert 3120B Smoke Alarm 120 Volt, White

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Two locking features are provided to prevent battery theft and/or theft of the unit. Connection to AC power is made with a Quick-Connect wiring harness. Installation is quick, easy and cost effective.
SKU: 42901306
MFG: 3120B
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  • Utilizes both ionization and photoelectric smoke sensors for maximum protection
  • Two latching features - alarm latch and low battery latch
  • Two silence features - alarm silence and low battery silence
  • Two AA battery backup
  • Optipath 360 technology


  • Sensor: Ion & Photo
  • Package Type: Box
  • Color: White
  • Battery backup: Y


MFR: 3120B
SKU: 42901306
UPC: 029054007100
Brand: First Alert
Weight: 1.0 lb
Attachments: Specifications, Manuals,