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AC/DC Smoke Alarm

Model Number: 3120B

Online Price

  • Description 

120V AC Dual Sensing Smoke Alarm with Silence/Test Button & Battery Back-Up. No need to remove alarm from ceiling, front load battery door makes switching batteries quick and easy.

  • Photoelectric/Ion Sensor
  • Battery Operated
  • Kitchen and Bedroom
  • 10-Year Limited Warranty
  • Support: Technical Resources Available at:, Toll Free: 800.323.9005, Support Hours: Mon -Fri 7:30AM - 5PM CST

Online Availability

Available for shipment in approximately 6 days.

Ship to Store - Free!

Not eligible for Ship To Store

Store Availability

Please Note: Prices, promotions, styles and availability may vary by store and online. While we do our best to provide accurate item availability information, we cannot guarantee in-stock status and availability as item quantities are constantly changing throughout the day. Inventory last updated 7/29/2014 at 5:00am CT. Online orders and products purchased in-store qualify for rebate redemption. Rebates are provided in the form of a merchandise credit check which can only be used in a Menards store.