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# ENScanInstance

The aggregation of attenuations of beacons received during a scan.

```
class ENScanInstance
```

## Overview> Important:
> This property is available in iOS 12.5, and in iOS 13.7 and later.

## Topics

### Getting Scan Instance Properties

[`var minimumAttenuation: ENAttenuation`](/documentation/ExposureNotification/ENScanInstance/minimumAttenuation)

The minimum attenuation of beacons received during the scan.

[`var secondsSinceLastScan: Int`](/documentation/ExposureNotification/ENScanInstance/secondsSinceLastScan)

The number of seconds elapsed since the previous scan.

[`var typicalAttenuation: ENAttenuation`](/documentation/ExposureNotification/ENScanInstance/typicalAttenuation)

The aggregation of the attenuations of beacons received during the scan.

## Relationships

### Conforms To

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

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

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

[`NSObjectProtocol`](/documentation/ObjectiveC/NSObjectProtocol)

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

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

### Inherits From

[`NSObject-swift.class`](/documentation/ObjectiveC/NSObject-swift.class)

---

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