---
title: sourceDevice
framework: sensorkit
role: symbol
role_heading: Instance Property
path: sensorkit/srfetchresult/sourcedevice
---

# sourceDevice

## Declaration

```swift
var sourceDevice: SRSourceDevice? { get }
```

## Discussion

Discussion The source of the sample data Represents the peripheral supplying data. Useful for distinguishing multiple source peripherals using a common device. Is nullable when no source information is available when providing sample data.