This is the propId property of a floating-point threshold definition object, the definition of one floating-point statistics threshold, used for readings such as temperature, voltage, or fan speed, that belongs to a threshold policy, identifying which specific underlying statistics property this threshold definition monitors. UCS Manager uses this propId internally to bind the threshold's trigger logic to the correct counter, such as a particular power, thermal, or network statistic. For example, an admin auditing which counters have thresholds defined would read propId on each floating-point threshold definition to confirm every critical statistic, like input power or link errors, is actually covered.