First Alert Battery Operated Interconnected Wireless Smoke Alarm with Voice Location Dectector White

Dimensions (Overall): 2 Inches (H) x 5 Inches (W) x 5 Inches (D)
Weight: 8.3 ounces
Package Quantity: 1
Requires Hardwired Installation: No
Battery: 4 AA Lithium, Required, Included
Warranty: 10 Year Limited Warranty. To obtain a copy of the manufacturer's or supplier's warranty for this item prior to purchasing the item,
•Help keep your family safe with this battery-powered, connectable smoke alarm; connected alarms will all sound when one is activated, creating a home safety network
•Battery-powered smoke detector has a voice alarm that tells you where the danger is so you can choose the best evacuation route; 85-decibel siren also sounds
•Wirelessly connect up to 18 alarms for the maximum in whole-home protection
•Photoelectric smoke detector sensor minimizes false alarms from cooking or shower steam
•Battery-powered alarm requires no rewiring for installation and provides continued monitoring even if there's a power failure
•Meets UL standards; 10-year limited warranty
This First Alert SA511CN2-3ST Interconnected Wireless Smoke Alarm with Voice Location features an 85-decibel siren and voice alarm that tells you where the danger is located. A photoelectric smoke detector helps minimize false alarms from cooking or shower steam. You can wirelessly connect each one with up to 18 alarms in your home. The battery-operated alarms don't require hardwiring for installation and will provide continued monitoring even in the event of a power failure.