> For the complete documentation index, see [llms.txt](https://docs.blynk.io/en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.blynk.io/en/blynk.console/templates/datastreams/datastreams-common-settings/data-type.md).

# Data Type

Every Datastream has a Data Type setting. Data Type is used to specify the type and format of the data and optimize data storage and further calculations.

Make sure you choose a correct Data Type for your data. Currently, these Data Types are supported:

|    Type   |          Min          |      Max      |
| :-------: | :-------------------: | :-----------: |
| `Integer` |     -2,147,483,648    | 2,147,483,647 |
|  `Double` |     -1.8 x 10^300     | 4.9 x 10^-324 |
|  `String` | any value is accepted |               |

**IMPORTANT:**

Blynk server will ignore values that don't match the Data Type

Example: if Datastream has Data Type set to `Integer`, but Hardware sends `123.45`, this value will be skipped because it is `Double`, not `Integer`.

If the incoming value goes out of range of Min or Max setting, this value will be "cropped" to match this setting.


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