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It should be noted that not every reporting device need be in agreement to warrant action; it could be that a point source of excessive heat has not yeat yet permeated the space sufficiently to be detected by every sensor. Sensors further and lower will likely detect heat events later than those closer and higher relative to the source. If no thermal event is the ideal, then detecting and identifying one before it is detectable across the space is the next best thing. Thus, the IOC operator should be considering the space as a whole; if multiple sensors indicate a change in temperature, it is strong evidence that the space is, or will be, experiencing an overall change in temperature.
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