Family Guard Smoke Alarm White Battery Operated

RK, Battery Operated, Familygard Smoke Detector, Delivers Reliable Detection With A Built In Dual Chamber Ionization Smoke Sensor, Wide Openings Provide Plenty Of Air Flow For Quick Detection & If The Smoke Alarm Identifies A Dangerous Condition It Will Trigger An 85 Decibel Siren, Location Flexibility & Easy Installation, Uses A 9V Battery, Included.