# SensorFusionResult.SensorFusionFallback

Artifact: [androidx.core.uwb:uwb](https://developer.android.com/jetpack/androidx/releases/core-uwb) [View Source](https://cs.android.com/search?q=file:androidx/core/uwb/SensorFusionResult.kt+class:androidx.core.uwb.SensorFusionResult.SensorFusionFallback) Added in [1.1.0-alpha03](https://developer.android.com/jetpack/androidx/releases/core-uwb#1.1.0-alpha03)

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```
class SensorFusionResult.SensorFusionFallback : SensorFusionResult
```

<br />

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Sensor fusion failed to start and the session will fall back to UWB ranging.

## Summary

| ### Public constructors |
|---|
| `https://developer.android.com/reference/kotlin/androidx/core/uwb/SensorFusionResult.SensorFusionFallback#SensorFusionFallback(androidx.core.uwb.UwbDevice,kotlin.Int)(device: https://developer.android.com/reference/kotlin/androidx/core/uwb/UwbDevice, reason: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` |

| ### Public properties |
|---|---|
| `open https://developer.android.com/reference/kotlin/androidx/core/uwb/UwbDevice` | `https://developer.android.com/reference/kotlin/androidx/core/uwb/SensorFusionResult.SensorFusionFallback#device()` The peer UWB device. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/core/uwb/SensorFusionResult.SensorFusionFallback#reason()` Reason code indicating why sensor fusion failed to start |

## Public constructors

### SensorFusionFallback

Added in [1.1.0-alpha03](https://developer.android.com/jetpack/androidx/releases/core-uwb#1.1.0-alpha03)

```
SensorFusionFallback(device: UwbDevice, reason: Int)
```

## Public properties

### device

```
open val device: UwbDevice
```

The peer UWB device.

### reason

Added in [1.1.0-alpha03](https://developer.android.com/jetpack/androidx/releases/core-uwb#1.1.0-alpha03)

```
val reason: Int
```

Reason code indicating why sensor fusion failed to start