Description: The primary availability and status of the Device. (Additional status information can be specified using the AdditionalAvailability array property.) For example, the Availability property indicates that the Device is running and has full power (value=3), or is in a warning (4), test (5), degraded (10) or power save state (values 13-15 and 17). Regarding the Power Save states, these are defined as follows: Value 13 ('Power Save - Unknown') indicates that the Device is known to be in a power save mode, but its exact status in this mode is unknown; 14 ('Power Save - Low Power Mode') indicates that the Device is in a power save state but still functioning, and may exhibit degraded performance; 15 ('Power Save - Standby') describes that the Device is not functioning but could be brought to full power 'quickly'; and value 17 ('Power Save - Warning') indicates that the Device is in a warning state, though also in a power save mode.