First Alert 1039826 B/O Interconnected Wireless Smoke Alarm with Voice Location SummerFun Almost indestructible polypropylene body and

Almost indestructible polypropylene body and durable steel base

and assembling

(2) 13MM deep socket

Advanced Threadform Technology™

zinc & other heavy metals found in tap & well water

First Alert 1039826 B/O Interconnected Wireless Smoke Alarm with Voice Location SummerFun Almost indestructible polypropylene body andThe First Alert 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 sensor detects smoke while minimizing false alarms from cooking or shower steam. Interconnected smoke detectors in different locations are designed to work together, with one alarm triggering the other alarm during a fire, helping to provide the earliest warning for your