The Walter Kidde Hardwire Smoke Alarms (4-Pack) alert you to potential fire dangers by detecting the presence of smoke and heat in the atmosphere. These alarms are equipped with two pre-stripped wires for easy installation and have a 9-Volt battery backup to ensure continued use during a power failure. The alarms feature a dust cover that protects the internal sensor from airborne contaminates that may take flight during a fire or a construction job. Shop all Kidde Smoke Detectors here.
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