> For the complete documentation index, see [llms.txt](https://docs.emobiq.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.emobiq.com/emobiq-client/006-actions-and-visual-logic/action-reference/cordova/device/deviceserial.md).

# deviceSerial

## Description

Get the serial number of a device.

## Input / Parameter

N/A

## Output

N/A

## Callback

N/A

## Video

Coming Soon.

## Example

The user wants to display the device serial number in an info dialog.

### Step

| No. | Description                      |                                                                                                                                                                                                                                                          |
| --- | -------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| 1.  | ![](/files/4ul5bbtdZE3ItuEh7TVU) | Drag a button to a page in the mobile designer. Select the event `click` for the button and drag the `infoDialog` function to the event flow. Fill in the parameters of the function. For the parameter `content`, select the parameter type `function`. |
| 2.  | ![](/files/sKxHl1xfeRpOpjo6vOh2) | Drag the `deviceSerial` function to the node in the subflow for the `content` parameter.                                                                                                                                                                 |

### Result

When the button is pressed, the infoDialog will appear to show the serial number of the device.

## Links