> For the complete documentation index, see [llms.txt](https://luadoc.edgetx.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://luadoc.edgetx.org/edgetx-v2.8/part_iii_-_opentx_lua_api_reference/general-functions-less-than-greater-than-luadoc-begin-general/getfieldinfo.md).

# getFieldInfo(source)

Return detailed information about field (source)

The list of valid sources is available:

| OpenTX Version | Radio                                                                                                                                                                                                                                                                                                                        |
| -------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| 2.0            | [all](http://downloads-20.open-tx.org/firmware/lua_fields.txt)                                                                                                                                                                                                                                                               |
| 2.1            | [X9D and X9D+](http://downloads-21.open-tx.org/firmware/lua_fields_taranis.txt), [X9E](http://downloads-21.open-tx.org/firmware/lua_fields_taranis_x9e.txt)                                                                                                                                                                  |
| 2.2            | [X9D and X9D+](http://downloads.open-tx.org/2.2/release/firmware/lua_fields_x9d.txt), [X9E](http://downloads.open-tx.org/2.2/release/firmware/lua_fields_x9e.txt), [Horus](http://downloads.open-tx.org/2.2/release/firmware/lua_fields_x12s.txt)                                                                            |
| 2.3            | [X9D and X9D+](http://downloads.open-tx.org/2.3/release/firmware/lua_fields_x9d.txt), [X9E](http://downloads.open-tx.org/2.3/release/firmware/lua_fields_x9e.txt), [X7](http://downloads.open-tx.org/2.3/release/firmware/lua_fields_x7.txt), [Horus](http://downloads.open-tx.org/2.3/release/firmware/lua_fields_x12s.txt) |

@status current Introduced in 2.0.8, 'unit' field added in 2.2.0

## Parameters

* `source` can be an identifier (number) or a name (string) of the source.

## Return value

* `table` information about requested field, table elements:
  * `id` (number) field identifier
  * `name` (string) field name
  * `desc` (string) field description
  * 'unit' (number) unit identifier [Full list](/edgetx-v2.8/appendix/units.md)
* `nil` the requested field was not found


---

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