<!--
{
  "availability" : [
    "iOS: 27.0.0 -",
    "iPadOS: 27.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "SensorKit",
  "identifier" : "/documentation/SensorKit/SRReader/init(sensor:)",
  "metadataVersion" : "0.1.0",
  "role" : "Initializer",
  "symbol" : {
    "kind" : "Initializer",
    "modules" : [
      "SensorKit"
    ],
    "preciseIdentifier" : "s:9SensorKit8SRReaderC6sensorACyxGx_tKcfc"
  },
  "title" : "init(sensor:)"
}
-->

# init(sensor:)

Creates a new sensor reader for the specified sensor type.

```
init(sensor: Sensor) throws
```

## Parameters

`sensor`

The sensor type to create a reader for (e.g., `.wristTemperature`, `.heartRate`)

## Return Value

A new `SRReader` instance

## Discussion

This initializer attempts to create a reader for the given sensor.

> Throws: An error if cannot create reader due to hardware limitations or internal error

## Example

```swift
do {
    let reader = try SRReader(sensor: .wristTemperature)
} catch {
    NSLog("Failed to create reader: \(error)")
    return
}
```

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)