The start of the new year is the perfect time to double check your home's smoke alarms to be sure they're properly installed ...

Photoelectric, ionization, or both? Ionization models are good at detecting fires that burn fast and move quickly, like kitchen grease fires. Photoelectric models are good for detecting smoldering ...

When smoke particles disrupt the light beam, the sensor sets off the alarm ... These employ both technologies — ionization and photoelectric — in one device. All three types of smoke alarms ...