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# CMMagneticFieldCalibrationAccuracy

Indicates the calibration accuracy of a magnetic field estimate

```
enum CMMagneticFieldCalibrationAccuracy
```

## Overview

One of the `enum` constants of the `CMMagneticFieldCalibrationAccuracy` type is the value of the accuracy field of the [`CMCalibratedMagneticField`](/documentation/CoreMotion/CMCalibratedMagneticField) structure returned from the [`magneticField`](/documentation/CoreMotion/CMDeviceMotion/magneticField) property.

## Topics

### Constants

[`CMMagneticFieldCalibrationAccuracyUncalibrated`](/documentation/CoreMotion/CMMagneticFieldCalibrationAccuracy/uncalibrated)

The magnetic field estimate is not calibrated.

[`CMMagneticFieldCalibrationAccuracyLow`](/documentation/CoreMotion/CMMagneticFieldCalibrationAccuracy/low)

The accuracy of the magnetic field calibration is low.

[`CMMagneticFieldCalibrationAccuracyMedium`](/documentation/CoreMotion/CMMagneticFieldCalibrationAccuracy/medium)

The accuracy of the magnetic field calibration is medium.

[`CMMagneticFieldCalibrationAccuracyHigh`](/documentation/CoreMotion/CMMagneticFieldCalibrationAccuracy/high)

The accuracy of the magnetic field calibration is high.

## Relationships

### Conforms To

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`Sendable`](/documentation/Swift/Sendable)

[`RawRepresentable`](/documentation/Swift/RawRepresentable)

[`BitwiseCopyable`](/documentation/Swift/BitwiseCopyable)

[`Equatable`](/documentation/Swift/Equatable)

[`Hashable`](/documentation/Swift/Hashable)

---

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