Mesh Device Properties / Specification
3 Properties
3.1 Ambient Temperature property group
This category contains the property definitions related to the air temperature surrounding a sensor or a
device.
3.1.1 Average Ambient Temperature In A Period Of Day property
This property represents an average ambient temperature measured over a period of time during the day.
This property can be used to update a column in a histogram. The first value is the average ambient
temperature as measured during a period of time, the second value is the start of the period, and the third
value is the end of the period.
A period of time is represented with a unit of decihour (1/10th of an hour, or 6 minutes); a start time of 0
corresponds to midnight (local time), and the maximum value for the end time is 240. The values reported
represent the most recent measured average values for the periods in the past 24 hours. For example, if
the current time is 11:00, and an average is reported for a time period with a start value of 115 and with
an end value of 116 (corresponding to a time period from 11:30 to 11:36), that measurement represents
the average temperature of that time period during the previous day. This property does not distinguish
between indoor and outdoor ambient temperatures. Typically, the use context is derived from the device
location properties.
Characteristic: Temperature 8 In A Period Of Day
3.1.2 Indoor Ambient Temperature Statistical Values property
This property represents the most recent average, standard deviation, and minimum and maximum
values for a set of measured ambient indoor temperatures, and the period of time over which the
measurements were taken.
Characteristic: Temperature 8 Statistics
3.1.3 Outdoor Statistical Values property
This property represents the most recent average, standard deviation, and minimum and maximum
values for a set measured ambient outdoor temperatures, and the period of time over which the
measurements were taken.
Characteristic: Temperature 8 Statistics
3.1.4 Present Ambient Temperature property
This property represents an ambient air temperature as measured by a temperature sensor. This property
does not distinguish between indoor or outdoor temperature. This context is derived from the location of
the element when this property is used, for example, by using the device location properties. This
property can be used if a temperature sensor can be used both indoors and outdoors.
Characteristic: Temperature 8
Bluetooth SIG Proprietary Page 12 of 61
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