# SRReader `SRReader` serves as the primary interface for accessing sensor data from various device sensors. ``` final class SRReader where Sensor : SRDataSensor ``` ## Topics ### Initializers [`init(sensor: Sensor) throws`](/documentation/SensorKit/SRReader/init(sensor:)) Creates a new sensor reader for the specified sensor type. ### Instance Properties [`var authorizationStatus: SRAuthorizationStatus`](/documentation/SensorKit/SRReader/authorizationStatus) The current authorization status for accessing the sensor data. [`var devices: [SRDevice]`](/documentation/SensorKit/SRReader/devices) Returns device information for all devices that have stored data for the given sensor in SensorKit [`let sensor: Sensor`](/documentation/SensorKit/SRReader/sensor) The sensor instance associated with this reader. ### Instance Methods [`func deletionRecords(matching: SRFetchRequest) -> some AsyncSequence, any Error>`](/documentation/SensorKit/SRReader/deletionRecords(matching:)) Fetches sensor data based on the provided request parameters. The reader must be authorized for the sensor for this to succeed. [`func samples(matching: SRFetchRequest) -> some AsyncSequence, any Error>`](/documentation/SensorKit/SRReader/samples(matching:)) Fetches sensor data based on the provided request parameters. The reader must be authorized for the sensor for this to succeed. [`func startRecording() async throws`](/documentation/SensorKit/SRReader/startRecording()) Starts recording sensor data. [`func stopRecording() async throws`](/documentation/SensorKit/SRReader/stopRecording()) Stops recording sensor data. ## Relationships ### Conforms To [`Copyable`](/documentation/Swift/Copyable) [`Sendable`](/documentation/Swift/Sendable) [`Observable`](/documentation/Observation/Observable) [`SendableMetatype`](/documentation/Swift/SendableMetatype) [`Escapable`](/documentation/Swift/Escapable) --- Copyright © 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)