smoke detector

A smoke detector is a device that senses smoke particles in the air, which can indicate a fire. It uses sensors—either ionization or photoelectric—to detect smoke quickly, triggering an alarm to alert you of potential danger. Ionization detectors respond faster to small particles from fast-burning fires, while photoelectric detectors are more sensitive to larger smoke particles from slower, smoldering fires. Proper placement and regular testing ensure it functions effectively, providing early warning to help prevent injuries and property damage.