# Slot: units


Specifies the measurement units for the radius and altitude properties on a Place object. If not specified, the default is assumed to be "m" for "meters".

URI: [as:units](http://www.w3.org/ns/activitystreams#units)


## Domain and Range

None &#8594;  <sub>0..1</sub> [String](types/String.md)

## Parents


## Children


## Used by

 * [Place](Place.md)

## Other properties

|  |  |  |
| --- | --- | --- |
| **Mappings:** | | as:units |