Hardwire Interconnect Smoke Alarm, 6 Pk - REPLACED BY CAT # SM6W01-CP (EFFECTIVE 9/1/2026)

Smoke particles of varying number and size are produced in all fires. For maximum protection, use both ionization and photoelectric sensing technologies. Ionization alarms are generally more sensitive to fast flaming fires and photoelectric alarms are generally more sensitive to smoldering fires.