There are two main types of smoke alarms – ionization and photoelectric. Learning the difference can help you make the best choice for home or business.
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First Alert SA320CN Smoke Alarm with Smart Sensing Technology and Nuisance Resistance is a Dual ionization and photoelectric sensor smoke alarm which
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While all smoke alarms are designed to detect smoke, different sensing technologies react differently to certain types of fires. The Fist Alert SA3210
First Alert Dual Sensor Photoelectric/Ionization Smoke and Fire Alarm with 10-Year Sealed Battery - SA3210 (1039842)
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