These devices detect the presence of smoke particles in the air, which can indicate the start of a fire. They are commonly used in homes, offices, and other indoor spaces.
Ionization Smoke Detectors : These detectors use a small amount of radioactive material to ionize the air inside the detector. When smoke particles enter the chamber, they disrupt the ionization, triggering the alarm.
Photoelectric Smoke Detectors : These detectors use a light source and a light-sensitive sensor. When smoke particles scatter light into the sensor, it triggers the alarm
Combination Smoke Detectors : These combine ionization and photoelectric technologies for faster and more accurate detection.