---
title: thresholdRange
framework: homekit
role: symbol
role_heading: Instance Property
path: homekit/hmcharacteristicthresholdrangeevent/thresholdrange
---

# thresholdRange

The range of the characteristic value that triggers the event.

## Declaration

```swift
@NSCopying var thresholdRange: HMNumberRange { get }
```

## See Also

### Inspecting a characteristic threshold event

- [characteristic](homekit/hmcharacteristicthresholdrangeevent/characteristic.md)