Which detectors can generate multiple alarms due to having multiple sensors?

Multi-sensor detectors are designed with multiple types of sensors within a single unit, allowing them to detect a variety of fire types more effectively than single-type sensors. These detectors can utilize different sensing technologies—such as heat, smoke (photoelectric and ionization), and sometimes even carbon monoxide—to assess a wider range of fire scenarios. Because of this combination, they can generate multiple alarms based on the signals detected by different sensors simultaneously. This capability increases their responsiveness and reduces the likelihood of false alarms, making them particularly effective in diverse environments.

While photoelectric and ionization detectors each focus on a specific sensing method (light scattering and ionization, respectively), and multi-criteria detectors also utilize multiple factors for detection, including environmental data, they do not inherently possess the same level of combinational sensor functionality that multi-sensor detectors have. Thus, multi-sensor detectors stand out in their ability to generate multiple alarms from their integrated sensor system.