What is the Difference Between Ionization and Photoelectric Smoke Alarms?

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.
Since 1946, people have trusted Koorsen to protect and secure their businesses and homes.

Ionization vs Photoelectric Smoke Detectors

Ionization Smoke Alarm - Kidde

Do Ionisation smoke alarms work?

USI Hardwired Ionization Smoke and Fire Detector with Battery Backup - 5304

Why Photoelectric Smoke Detectors are better?

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)

Smoke Detectors FAQS

First Alert SA320CN Smoke Alarm with Smart Sensing Technology and Nuisance Resistance is a Dual ionization and photoelectric sensor smoke alarm which

First Alert Smoke Alarm with Smart Sensing Technology and Nuisance Resistance - SA320CN (1039828)

The Best Smoke Detector for Your Home, and the Worst

Ionization vs. Photoelectric Smoke Alarms

Kidde Recalls Dual Sensor Smoke Alarms Due to Risk of Failure to Alert Consumers to a Fire

Choosing the Best Smoke Detector Types for Your Home: Ionization or Photoelectric Smoke Detectors?

First Alert 10-Year Battery 2-Pack Hardwired Ionization Sensor Smoke Detector in the Smoke Detectors department at

The 4 Best Basic Smoke Alarms of 2024

The 9 best smoke detectors for your home in 2023