<!--
{
  "availability" : [
    "iOS: 12.0.0 -",
    "iPadOS: 12.0.0 -",
    "macCatalyst: 13.1.0 -",
    "watchOS: 5.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "CoreMotion",
  "identifier" : "/documentation/CoreMotion/CMRecordedPressureData",
  "metadataVersion" : "0.1.0",
  "role" : "Class",
  "symbol" : {
    "kind" : "Class",
    "modules" : [
      "Core Motion"
    ],
    "preciseIdentifier" : "c:objc(cs)CMRecordedPressureData"
  },
  "title" : "CMRecordedPressureData"
}
-->

# CMRecordedPressureData

A recorded measurement of pressure data.

```
class CMRecordedPressureData
```

## Overview

Use SensorKit’s <doc://com.apple.documentation/documentation/SensorKit/SRSensor/ambientPressure> sensor to read ambient pressure data.

## Topics

### Instance Properties

[`identifier`](/documentation/CoreMotion/CMRecordedPressureData/identifier)

A value that uniquely identifies this measurement.

[`startDate`](/documentation/CoreMotion/CMRecordedPressureData/startDate)

The time and date when the system recorded the measurement.


---

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)