> For the complete documentation index, see [llms.txt](https://datashapes.gitbook.io/primer/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://datashapes.gitbook.io/primer/revit/document.lengthdisplayunit.md).

# Document.LengthDisplayUnit

## 1. Description

This node returns display units and unit symbols for lengths in current document. 

![](https://238629208-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LO8n4ithPJG3iCqU7ir%2F-LVrre17aiQ00566rLE2%2F-LVrrtMjqT-1tqVx2SC4%2FCapture.png?alt=media\&token=87c1fe80-6a1c-4db8-95d3-70b94324b9cb)

## 2. Outputs

* **LengthDisplayUnits**

This output retrieves the display units of the current project.

* **LengthDisplayUnitsSymbol**

This output retrieves the display unit symbols used in the project.

![](https://238629208-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LO8n4ithPJG3iCqU7ir%2F-LVrre17aiQ00566rLE2%2F-LVrtUA0XAcU1S-PwVVx%2FWZngldTlFw.png?alt=media\&token=bf02e842-42cc-4914-aad6-1bc4066573aa)