Sensor variables reference

Reference documentation for sensor variables

To read more on how to use sensor variables, please read the Device sensors guide.
Accelerometer
The device's current acceleration. Note that the z property includes Earth's gravitational acceleration.
The values below describe properties of the sensorVars.accelerometer.latestValue variable, and as such, the schema of the items in the sensorVars.accelerometer.values array.
Property
Values
Description
x
Negative or positive decimal, e.g. -6.71.
Acceleration along the X axis, as m/s².
y
Negative or positive decimal, e.g. 2.05.
Acceleration along the Y axis, as m/s².
z
Negative or positive decimal, e.g. 4.29.
Acceleration along the Z axis, as m/s².
timestamp
ISO 8601 format string, e.g. 2019-08-27T12:50:38.976Z.
Timestamp of when the value was recorded.
Barometer
The atmospheric pressure around the device.
The values below describe properties of the sensorVars.barometer.latestValue variable, and as such, the schema of the items in the sensorVars.barometer.values array.
Property
Values
Description
pressure
Positive decimal, e.g. 101.2.
Atmospheric pressure, in kilopascals.
timestamp
ISO 8601 format string, e.g. 2019-08-27T12:50:38.976Z.
Timestamp of when the value was recorded.
Compass
The device's current heading.
The values below describe properties of the sensorVars.compass.latestValue variable, and as such, the schema of the items in the sensorVars.compass.values array.
Property
Values
Description
heading
Positive decimal between 0…360, e.g. 64.71.
The direction in which the device is facing, given as degrees from true north. 0 degrees represents true north, and the direction is determined clockwise (which means that east is 90 degrees and west is 270 degrees).
timestamp
ISO 8601 format string, e.g. 2019-08-27T12:50:38.976Z.
Timestamp of when the value was recorded.
Geolocation
The device's current position, altitude, heading and speed.
The values below describe properties of the sensorVars.geolocation.latestValue variable, and as such, the schema of the items in the sensorVars.geolocation.values array.
Property
Values
Description
latitude
Negative or positive decimal, e.g. 60.1699.
Latitude of the device, in decimal degrees.
longitude
Negative or positive decimal, e.g. 24.9384.
Longitude of the device, in decimal degrees.
altitude
Negative or positive decimal, e.g. 4.29.
Altitude of the device, in meters, relative to sea level. If the device does not provide this information, this value will be null.
accuracy
Positive decimal, e.g. 1235.04.
Accuracy of the latitude and longitude parameters, in meters.
altitudeAccuracy
Positive decimal, e.g. 15.11.
Accuracy of the altitude parameter, in meters.
heading
Positive decimal between 0…360, e.g. 90.4.
The direction in which the device is traveling, given as degrees from true north. 0 degrees represents true north, and the direction is determined clockwise (which means that east is 90 degrees and west is 270 degrees).
speed
Positive decimal, e.g. 0.35.
Velocity of the device, in meters per second.
timestamp
ISO 8601 format string, e.g. 2019-08-27T12:50:38.976Z.
Timestamp of when the value was recorded.
Gyroscope
The device's current rotation.
The values below describe properties of the sensorVars.gyroscope.latestValue variable, and as such, the schema of the items in the sensorVars.gyroscope.values array.
Property
Values
Description
x
Negative or positive decimal, e.g. -6.71.
Angular velocity of the device along its X axis, in m/s².
y
Negative or positive decimal, e.g. 2.05.
Angular velocity of the device along its Y axis, in m/s².
z
Negative or positive decimal, e.g. 4.29.
Acceleration along the Z axis, as m/s².
timestamp
ISO 8601 format string, e.g. 2019-08-27T12:50:38.976Z.
Timestamp of when the value was recorded.
Magnetometer
The device's current position relative to the Earth's magnetic field.
The values below describe properties of the sensorVars.magnetometer.latestValue variable, and as such, the schema of the items in the sensorVars.magnetometer.values array.
Property
Values
Description
x
Negative or positive decimal.
Magnetic field of the device along its X axis, in microteslas.
y
Negative or positive decimal.
Magnetic field of the device along its Y axis, in microteslas.
z
Negative or positive decimal.
Magnetic field of the device along its Z axis, in microteslas.
timestamp
ISO 8601 format string, e.g. 2019-08-27T12:50:38.976Z.
Timestamp of when the value was recorded.

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Property	Values	Description
`x`	Negative or positive decimal, e.g. `-6.71`.	Acceleration along the X axis, as m/s².
`y`	Negative or positive decimal, e.g. `2.05`.	Acceleration along the Y axis, as m/s².
`z`	Negative or positive decimal, e.g. `4.29`.	Acceleration along the Z axis, as m/s².
`timestamp`	ISO 8601 format string, e.g. `2019-08-27T12:50:38.976Z`.	Timestamp of when the value was recorded.

Property	Values	Description
`latitude`	Negative or positive decimal, e.g. `60.1699`.	Latitude of the device, in decimal degrees.
`longitude`	Negative or positive decimal, e.g. `24.9384`.	Longitude of the device, in decimal degrees.
`altitude`	Negative or positive decimal, e.g. `4.29`.	Altitude of the device, in meters, relative to sea level. If the device does not provide this information, this value will be `null`.
`accuracy`	Positive decimal, e.g. `1235.04`.	Accuracy of the `latitude` and `longitude` parameters, in meters.
`altitudeAccuracy`	Positive decimal, e.g. `15.11`.	Accuracy of the `altitude` parameter, in meters.
`heading`	Positive decimal between `0…360`, e.g. `90.4`.	The direction in which the device is traveling, given as degrees from true north. 0 degrees represents true north, and the direction is determined clockwise (which means that east is 90 degrees and west is 270 degrees).
`speed`	Positive decimal, e.g. `0.35`.	Velocity of the device, in meters per second.
`timestamp`	ISO 8601 format string, e.g. `2019-08-27T12:50:38.976Z`.	Timestamp of when the value was recorded.

Property	Values	Description
`x`	Negative or positive decimal, e.g. `-6.71`.	Angular velocity of the device along its X axis, in m/s².
`y`	Negative or positive decimal, e.g. `2.05`.	Angular velocity of the device along its Y axis, in m/s².
`z`	Negative or positive decimal, e.g. `4.29`.	Acceleration along the Z axis, as m/s².
`timestamp`	ISO 8601 format string, e.g. `2019-08-27T12:50:38.976Z`.	Timestamp of when the value was recorded.