There are two different types of smoke alarms—single-sensor ionization and single-sensor photoelectric units. They work differently in order to detect smoke. Ionization detectors use a very ...

Two examples of smoke detectors are photoelectric, top, and ionization. Photoelectric smoke detectors are hard-wired into a home and are better at sensing smoldering fires. Ionization smoke ...

or choose a model that utilizes both ionization and photoelectric sensors. A silence or hush button so you can quickly silence false alarms caused by cooking smoke. There must be one smoke alarm ...