Kidde Firex Smoke Detector, Hardwired with 9V Battery Backup & Front-Load Battery Door, Smoke Alarm (4-Pack) Item # 1054480 Specially formulated two component

Specially formulated two component

Easily fabricated

2 x 2 inch

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Lifespan: 50

Kidde Firex Smoke Detector, Hardwired with 9V Battery Backup & Front-Load Battery Door, Smoke Alarm (4-Pack) Item # 1054480 Specially formulated two componentThe Kidde i4618 is an AC DC powered, ionization smoke alarm that operates on a 120V power source with 9V battery backup. Contractor box contains 4 alarms, mounting brackets, batteries and wire harness all included. This alarm uses ionization sensing technology. Ionization sensing alarms may detect invisible fire particles (associated with flaming fires) sooner than photoelectric alarms. Photoelectric sensing alarms may detect visible particles