ConstReadonlyattributes: { ReadonlypeakIndicates the maximum value of MeasuredValue that has been measured during the PeakMeasuredValueWindow. If this attribute is provided, the PeakMeasuredValueWindow attribute shall also be provided.
ReadonlypeakIndicates the window of time used for determining the PeakMeasuredValue. The value is in seconds.
A ConcentrationMeasurementCluster supports these elements if it supports feature PeakMeasurement.