Photo 1 of SMI100-AC Hardwire Interconnect Smoke Alarm with Battery Backup,

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Photo 1 of SMI100-AC Hardwire Interconnect Smoke Alarm with Battery Backup,Photo 2 of SMI100-AC Hardwire Interconnect Smoke Alarm with Battery Backup,Photo 3 of SMI100-AC Hardwire Interconnect Smoke Alarm with Battery Backup,