What is a combination smoke detector?

A combination smoke detector is designed to enhance fire detection by integrating both ionization and photoelectric detection technologies. Ionization detectors are highly sensitive to flaming fires that produce small particles, while photoelectric detectors are more effective at detecting smoldering fires that generate larger particles and smoke. By combining these two technologies, a combination smoke detector is able to provide a broader range of fire detection capabilities, improving overall safety in environments such as powerplants where both types of fire could potentially occur. This dual-functionality allows for quicker and more accurate alerts in the event of a fire, ensuring timely responses to prevent damage and enhance safety.

Other options mention different types of detection technologies or systems that do not incorporate both ionization and photoelectric elements, making them less capable in providing comprehensive fire detection compared to a combination smoke detector.