What does a spot detector do?

A spot detector is specifically designed to sense heat in particular areas, making it highly effective for identifying localized temperature increases that may indicate the presence of a fire. It utilizes thermistors or other temperature sensing technology to monitor the temperature at its designated location. When the temperature exceeds a predetermined threshold, the detector activates to alert personnel of potential fire hazards.

This targeted approach allows spot detectors to provide timely warnings near heat sources, enabling quicker response to potential fires. In contrast, other types of detectors mentioned do not focus on localized heat detection; for example, smoke detectors detect smoke presence but from a broader area, while air quality monitors are designed to detect specific contaminants rather than temperature. Thus, the main function of a spot detector is its ability to pinpoint increased temperatures in specific locations, playing a crucial role in fire safety systems.